Ip dhcp snooping vlan

DHCP Snooping Commands 4

switch will not add a dynamic entry for itself to the binding table when it receives an ACK message from a DHCP server. Also, when the switch sends out DHCP client packets for itself, no filtering takes place. However, when the switch receives any messages from a DHCP server, any packets received from untrusted ports are dropped.

Example

This example enables DHCP snooping globally for the switch.

Console(config)#ip dhcp snooping

Console(config)#

Related Commands

ip dhcp snooping vlan (4-319) ip dhcp snooping trust (4-320)

This command enables DHCP snooping on the specified VLAN. Use the no form to restore the default setting.

Syntax

[no] ip dhcp snooping vlan vlan-id

vlan-id- ID of a configured VLAN (Range: 1-4094)

Default Setting

Disabled

Command Mode

Global Configuration

Command Usage

•When DHCP snooping enabled globally using the ip dhcp snooping command (page 4-317),and enabled on a VLAN with this command, DHCP packet filtering will be performed on any untrusted ports within the VLAN as specified by the ip dhcp snooping trust command (page 4-320).

•When the DHCP snooping is globally disabled, DHCP snooping can still be configured for specific VLANs, but the changes will not take effect until DHCP snooping is globally re-enabled.

•When DHCP snooping is globally enabled, configuration changes for specific VLANs have the following effects:

-If DHCP snooping is disabled on a VLAN, all dynamic bindings learned for this VLAN are removed from the binding table.

Example

This example enables DHCP snooping for VLAN 1.

Console(config)#ip dhcp snooping vlan 1

Console(config)#

4-319

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Accton Technology ES3528M-SFP manual Ip dhcp snooping vlan, This example enables Dhcp snooping globally for the switch

Contents

Powered by Accton Page Fast Ethernet Switch ES3528M-SFP E122007-DG-R01 149100035500A About This Guide Installation GuidePage Contents Page Iii Page Contents Command Line Interface Vii Viii Contents Page Contents Xii Xiii Xiv Contents Xvi Appendix a Software Specifications Appendix B Troubleshooting Glossary IndexXvii Xviii Xix TablesPage Xxi Xxii Xxiii Figures Xxiv Figures Xxv Xxvi Key Features Key FeaturesFeature Description Introduction Description of Software Features Description of Software Features Introduction Description of Software Features Password super System DefaultsSystem Defaults Function Parameter Default Client Enabled System Defaults Function Parameter NTP Clock Synchronization Disabled Configuration Options Connecting to the Switch Required Connections Initial Configuration Basic Configuration Remote ConnectionsConsole Connection Setting Passwords Setting an IP AddressManual Configuration Dynamic Configuration Enabling Snmp Management Access Trap Receivers 152154 160 Saving Configuration SettingsConfiguring Access for Snmp Version 3 Clients 159 Managing System Files Initial Configuration Using the Web Interface Configuring the Switch Home Navigating the Web Browser Interface Revert Apply Help Configuration Options ActionPanel Display Button Main Menu Main Menu DescriptionSystem System Information Radius Group Settings TACACS+ Group SettingsHttps Settings Configures secure Http settings 116 107 149 155802.1Q Vlan 155 176 159Current Table 164 190 Port on this switch Remote Trunk InformationRemote Port Information 187 233 Static Multicast Router Port217 225 245 Configuration Enables Upnp and defines timeout values Field Attributes Displaying System Information Management Software Displaying Switch Hardware/Software VersionsCLI Specify the hostname, location and contact information Main Board Switch Information Web Click System, Switch Information Displaying Bridge Extension Capabilities Bridge Extension Configuration 239 Setting the Switch’s IP AddressCLI Enter the following command Command Attributes 166 309310 311 Using DHCP/BOOTP Managing Firmware Enabling Jumbo Frames Copy Firmware Downloading System Software from a Server 11 Deleting Files Saving or Restoring Configuration Settings 12 Downloading Configuration Settings for Startup Downloading Configuration Settings from a Server 13 Setting the Startup Configuration Settings Console Port Settings 14 Console Port Settings Telnet Settings 15 Enabling Telnet Basic Configuration CLI This example shows the event message stored in RAM Configuring Event LoggingSystem Log Configuration Displaying Log Messages Error resource exhausted Logging LevelsLevel Severity Name Description Remote Log Configuration 18 Remote Logs Simple Mail Transfer Protocol 19 Enabling and Configuring Smtp 20 Resetting the System Resetting the System Setting the System Clock Setting the Time ManuallyConfiguring Sntp 21 Sntp Configuration Configuring NTP 22 NTP Client Configuration Setting the Time Zone Simple Network Management Protocol 23 Setting the System Clock User defined Setting Community Access StringsSNMPv3 Security Models and Levels Level Group Read View Write View Notify View Security Specifying Trap Managers and Trap Types Access Mode 156 Enabling Snmp Agent Status Configuring SNMPv3 Management Access Setting the Local Engine IDWeb Click SNMP, Agent Status Configuring SNMPv3 Users Specifying a Remote Engine IDWeb Click SNMP, SNMPv3, Engine ID Configuring the Switch 29 Configuring SNMPv3 Users Configuring Remote SNMPv3 Users 30 Configuring Remote SNMPv3 Users Configuring SNMPv3 Groups Supported Notification Messages ChangeTrap SwIpFilterRejectTrap 6.1.4.1.259.8.1.4.2.1.0.40 SwPowerStatus 6.1.4.1.259.8.1.4.2.1.0.1Rmon Events Private Traps 31 Configuring SNMPv3 Groups Setting SNMPv3 Views 32 Configuring SNMPv3 Views Configuring User Accounts User Authentication 33 Access Levels Command Usage Configuring Local/Remote Logon Authentication Tacacs Settings Radius Settings 34 Authentication Settings 101 100 Configuring Encryption Keys Command Attributes Radius SettingsTACACS+ Settings AAA Authorization and Accounting 103 Configuring AAA Radius Group SettingsConfiguring AAA TACACS+ Group Settings 102 37 AAA TACACS+ Group Settings Configuring AAA Accounting 38 AAA Accounting Settings AAA Accounting Update AAA Accounting 802.1X Port Settings106 107 AAA Accounting Exec Command Privileges 108 41 AAA Accounting Exec Command Privileges AAA Accounting Statistics Summary AAA Accounting Exec SettingsAAA Accounting Summary AAA Accounting Summary 110 Web Click Security, AAA, Summary 44 AAA Authorization Settings Authorization Settings Authorization Exec Settings Authorization Summary109 Https System Support Web Browser Operating System Configuring Https 47 Https Settings Replacing the Default Secure-site Certificate Address server ip-address Configuring the Secure Shell Command Usage Authenticating SSH v2 Clients Authenticating SSH v1.5 Clients SSH server includes basic settings for authentication Configuring the SSH Server Generating the Host Key Pair Importing User Public Keys 50 SSH Host-Key Settings User Authentication 51 SSH User Public-Key Settings END SSH2 Public KEY Configuring Port Security 111 Configuring 802.1X Port Authentication Configuring the Switch CLI This example shows the default global setting for Displaying 802.1X Global SettingsConfiguring 802.1X Global Settings 802.1X protocol provides client authentication Configuring Port Settings for CLI This example enables 802.1X globally for the switch113 55 802.1X Port Configuration 114 116117 Displaying 802.1X Statistics 802.1X StatisticsParameter Description CLI This example displays the 802.1X statistics for port Web Authentication 57 Web Authentication Configuration Configuring Web Authentication Configuring Web Authentication for Ports 137 Displaying Web Authentication Port Information Web Click Security, Web Authentication, Port Information Re-authenticating Web Authenticated Ports 136 Network Access MAC Address Authentication Mode Enables MAC authentication on a port. Default None Configuring the MAC Authentication Reauthentication TimeConfiguring MAC Authentication for Ports Web Click Security, Network Access, Configuration 62 Network Access Port Configuration CLI This example configures MAC authentication for port Configuring Port Link Detection Displaying Secure MAC Address Information 63 Network Access Port Link Detection Configuration 129 MAC AuthenticationConfiguring MAC authentication parameters for ports Port Indicates the port being configured 123 Access Control Lists Setting the ACL Name and Type Configuring Access Control Lists Configuring a Standard IP ACL CLI This example creates a standard IP ACL named david140 141 Configuring an Extended IP ACL 103 68 Configuring Extended IP ACLs Configuring a MAC ACL 146 Binding a Port to an Access Control List 143 Filtering IP Addresses for Management Access 108 71 Creating an IP Filter List CLI This example allows Snmp access for a specific client Port Configuration Displaying Connection StatusField Attributes Web Current Status ConfigurationField Attributes CLI Basic Information Configuring Interface Connections CLI This example shows the connection status for Port173 170 167171 168 Creating Trunk Groups 74 Configuring Static Trunks Statically Configuring a Trunk 181 Enabling Lacp on Selected Ports 75 Lacp Trunk Configuration Configuring Lacp Parameters Dynamically Creating a Port Channel182 76 Lacp Port Configuration Field Description Displaying Lacp Port CountersYou can display statistics for Lacp protocol messages Lacp Port Counters CLI The following example displays Lacp counters 77 Lacp Port Counters Information Lacp Internal Configuration Information Displaying Lacp Settings and Status for the Local Side 78 Lacp Port Internal Information 79 Lacp Port Neighbors Information Displaying Lacp Settings and Status for the Remote Side Setting Broadcast Storm Thresholds 175 172 177 Configuring Port Mirroring Configuring Rate Limits Rate Limit Configuration179 Showing Port Statistics 11 Port Statistics Etherlike StatisticsRmon Statistics Formed Fragments Formed Oversize Frames 83 Port Statistics 174 Address Table SettingsSetting Static Addresses CLI This example shows statistics for port 190 Displaying the Address Table 191 85 Configuring a Dynamic Address Table 192 Spanning Tree Algorithm ConfigurationChanging the Aging Time CLI This example sets the aging time to 300 seconds Designated Root Port Bridge Displaying Global Settings 139 235 87 Displaying Spanning Tree Information Configuring Global Settings Global settings apply to the entire switchBasic Configuration of Global Settings Configuration Settings for Rstp Root Device Configuration 88 Configuring Spanning Tree Configuration Settings for Mstp Displaying Interface Settings AD B 89 Displaying Spanning Tree Port Information CLI This example shows the STA attributes for port Configuring Interface Settings 148 CLI This example sets STA attributes for port Configuring Multiple Spanning Trees 223 225224 MST Instance ID Instance identifier to configure. Default Displaying Interface Settings for Mstp 92 Displaying Mstp Interface Settings Configuring Interface Settings for Mstp 154 Vlan Configuration Ieee 802.1Q VLANsCLI This example sets the Mstp attributes for port Assigning Ports to VLANs Port-based Vlan Enabling or Disabling Gvrp Global Setting CLI This example enables Gvrp for the switchForwarding Tagged/Untagged Frames Command Attributes Web Displaying Basic Vlan InformationDisplaying Current VLANs 96 Displaying Current VLANs Command Attributes CLI 250 Creating VLANs 243 Adding Static Members to VLANs Vlan IndexCLI This example creates a new Vlan 242 163 248 Adding Static Members to VLANs Port Index Configuring Vlan Behavior for Interfaces 100 Configuring VLANs per Port Configuring Ieee 802.1Q Tunneling QinQ Tunneling Layer 2 Flow for Packets Coming into a Tunnel Access Port Layer 2 Flow for Packets Coming into a Tunnel Uplink Port Enabling QinQ Tunneling on the Switch Configuration Limitations for QinQGeneral Configuration Guidelines for QinQ 101 802.1Q Tunnel Status and Ethernet Type 253 CLI This example sets the switch to operate in QinQ modeAdding an Interface to a QinQ Tunnel 251 252 Private VLANs Displaying Current Private VLANs 103 Private Vlan Information Configuring Private VLANs Associating VLANs Each community Vlan must be associated with a primary Vlan256 106 Private Vlan Port Information Displaying Private Vlan Interface Information 259 Configuring Private Vlan Interfaces 258 Protocol Vlan Group ConfigurationProtocol VLANs 257 261 Protocol Vlan System Configuration 262 Setting Lldp Timing AttributesWeb Click VLAN, Protocol VLAN, System Configuration Link Layer Discovery Protocol 182 198 Configuring Lldp Interface Attributes195 197 184 111 Lldp Port Configuration Displaying Lldp Local Device Information 212 Displaying Lldp Remote Port Information 213 Displaying Lldp Remote Information Details 115 Lldp Device Statistics Displaying Device Statistics 116 Lldp Device Statistics Details Displaying Detailed Device Statistics Class of Service Configuration Layer 2 Queue SettingsSetting the Default Priority for Interfaces 265 Port Priority ConfigurationCLI This example assigns a default priority of 5 to port Mapping CoS Values to Egress Queues Background 12 Mapping CoS Values to Egress Queues13 CoS Priority Levels Priority Level Traffic Type Enabling CoS 267269 268 Selecting the Queue ModeSetting the Service Weight for Traffic Classes Web Click Priority, Traffic Classes Status Mapping Layer 3/4 Priorities to CoS Values Layer 3/4 Priority Settings Enabling IP Dscp Priority Switch allows you to enable or disable the IP Dscp priority 10, 12, 14 18, 20, 22 26, 28, 30, 32, 34 38, 40 Mapping Dscp Priority14 Mapping Dscp Priority Values IP Dscp Value CoS Value Quality of Service 270271 Class Map Configuring Quality of Service ParametersConfiguring a Class Map Class map is used for matching packets to a specified class Match Class Settings Class Configuration 274 273 Policy Configuration Creating QoS PoliciesPolicy Map Policy Options Policy Rule Settings Class Settings 125 Configuring Policy Maps 277 Attaching a Policy Map to Ingress Queues275 276 Configuring VoIP Traffic VoIP Traffic Configuration Configuring VoIP Traffic Port 281282 128 VoIP Traffic Port Configuration 285 Configuring Telephony OUI283 284 129 Telephony OUI List Layer 2 Igmp Snooping and Query Multicast Filtering Configuring Igmp Snooping and Query Parameters 214 Enabling Igmp Immediate Leave 290 Displaying Interfaces Attached to a Multicast Router 132 Displaying Multicast Router Port Information Specifying Static Interfaces for a Multicast Router 133 Static Multicast Router Port Configuration Displaying Port Members of Multicast Services 134 IP Multicast Registration Table Assigning Ports to Multicast Services 291 Igmp Filtering and Throttling 136 Enabling Igmp Filtering and Throttling Enabling Igmp Filtering and Throttling Configuring Igmp Filter Profiles 298302 Configuring Igmp Filtering and Throttling for Interfaces Only one profile can be assigned to an interface299 138 Igmp Filter and Throttling Port Configuration 303 Multicast Vlan Registration300 301 General Configuration Guidelines for MVR Configuring Global MVR Settings 304 Displaying MVR Interface Status 307 Displaying Port Members of Multicast Groups Web Click MVR, Group IP Information Configuring MVR Interface Status 142 MVR Port Configuration 305 Assigning Static Multicast Groups to Interfaces Dhcp Snooping Enables Dhcp snooping on the specified Vlan Dhcp Snooping ConfigurationDhcp Snooping Vlan Configuration Web Click Dhcp Snooping, Configuration 319 Dhcp Snooping Information Option ConfigurationWeb Click Dhcp Snooping, Vlan Configuration CLI This example first enables Dhcp Snooping for Vlan Dhcp Snooping Port Configuration Web Click Dhcp Snooping, Information Option Configuration322 Dhcp Snooping Binding Information 320324 IP Source Guard IP Source Guard Port Configuration Static IP Source Guard Binding Configuration 313316 Dynamic IP Source Guard Binding Information Web Click IP Source Guard, Static Configuration Web Click IP Source Guard, Dynamic Information IP Clustering 152 Cluster Member Choice Cluster Configuration 325 Cluster Member ConfigurationWeb Click Cluster, Configuration Adds Candidate switches to the cluster as Members 328 Displays current cluster Member switch informationCluster Member Information Cluster Candidate Information 156 Cluster Candidate Information Web Click Cluster, Candidate Information UPnP 215 216217 Accessing the CLI Using the Command Line Interface Telnet Connection Keywords and Arguments Entering CommandsCommand Completion Getting Help on Commands Showing Commands Lldp Partial Keyword Lookup Negating the Effect of CommandsUsing Command History Understanding Command Modes Command Modes Exec Commands Vlan database Consoleconfig-vlan 242 Configuration CommandsConfiguration Modes Command Prompt Consoleconfig-if# 166 Consoleconfig#interface ethernet 1/5 Consoleconfig-if#exit Command Line Processing Command Line ProcessingKeystroke Function Command Groups Description Command Groups Line Commands Function Mode Line Commands Line Login No password is specified PasswordUsername 4-38 password Syntax Password 0 7 password no password Exec-timeout Timeout login response Password-thresh Syntax Exec-timeout seconds no exec-timeoutSyntax Password-thresh threshold no password-thresh Silent-time DatabitsSyntax Silent-time seconds no silent-time Parity Syntax Databits 7 8 no databitsSyntax Parity none even odd no parity Syntax Stopbits 1 SpeedStopbits Syntax Speed bps no speed Syntax Show line console vty DisconnectShow line Syntax Disconnect session-id Syntax Enable level General CommandsEnable General Commands Function Mode Level DisableDisable Enable password Enable Configure Show historyEnd Syntax Reload in hour hours minute minutes Reload cancelSyntax Reload cancel Reload End Syntax Show reload Default SettingThis command returns to Privileged Exec mode Show reload Quit This command exits the configuration programThis example shows how to quit a CLI session Exit System Management Commands Device Designation CommandsPrompt Syntax Hostname name no hostname Banner Commands Function ModeBanner Hostname Syntax Banner configure Default Setting Banner configure Name The name of the company. Maximum length 32 characters Banner configure company Banner configure department Banner configure dc-power-info Banner configure equipment-info Banner configure ip-lan Banner configure equipment-location Lp-num- The LP number. Maximum length 32 characters Banner configure lp-number Banner configure manager-info Banner configure muxSyntax Banner configure mux muxinfo No banner configure mux Banner configure note This command displays all banner information Syntax Show banner Default SettingShow banner Username User Access Commands10 User Access Commands Function Mode 11 Default Login Settings Username Access-level Password Default is level Default password is super Enable password IP Filter Commands 12 IP Filter Commands Function ModeManagement Show management Web Server Commands Ip http portIp http server 14 Https System Support Web Browser Operating System Syntax No ip http secure-server Default SettingIp http secure-server Ip http port Ip http secure-server4-43 Ip http secure-portIp http secure-port4-44 Copy tftp https-certificate Portnumber The UDP port used for HTTPS. Range Telnet Server Commands Ip telnet portIp telnet server Sets the SSH server key size Copy tftp public-key Secure Shell Commands16 SSH Commands Function Mode Ip telnet port System Management Commands Syntax No ip ssh server Default Setting Ip ssh serverIp ssh crypto host-key generate 4-51 show ssh Exec-timeout4-15 show ip ssh Ip ssh timeoutIp ssh authentication-retries Syntax Ip ssh timeout seconds no ip ssh timeout Ip ssh server-key size Delete public-keySyntax Delete public-key username dsa rsa Syntax Ip ssh crypto zeroize dsa rsa Ip ssh crypto host-key generateIp ssh crypto zeroize Syntax Ip ssh crypto host-key generate dsa rsa Ip ssh save host-key Show ip sshSyntax Ip ssh save host-key dsa rsa Show ssh 17 show ssh display descriptionTerminology Shows all public keys Show public-keySyntax Show public-key user username host Username Name of an SSH user. Range 1-8 characters Logging on Event Logging Commands18 Event Logging Commands Function Mode Syntax No logging on Default Setting Flash errors level 3 RAM warnings level 6 Logging history19 Logging Levels Hostipaddress The IP address of a syslog server Logging hostLogging facility Syntax No logging host hostipaddress Syntax Clear logging flash ram Logging trapClear logging Syntax Logging trap level no logging trap Show logging Syntax Show logging flash ram sendmail trap20 show logging flash/ram display description Show log Facility commandLogging trap command Syntax Show log flash ram login tail Following example shows sample messages stored in RAM Smtp Alert Commands22 Smtp Alert Commands Function Mode Logging sendmail host Syntax Logging sendmail level level Logging sendmail level This example will set the source email john@acme.com Logging sendmail source-emailLogging sendmail destination-email Syntax No logging sendmail source-email email-address Syntax No logging sendmail Default Setting Logging sendmailShow logging sendmail Sntp client Time Commands23 Time Commands Function Mode Syntax No sntp client Default Setting Sntp server Sntp server 4-66 sntp poll 4-67 show sntpSyntax Sntp server ip1 ip2 ip3 Syntax Sntp poll seconds no sntp poll Sntp pollShow sntp Sntp client 4-65 sntp poll 4-67 show sntp Syntax No ntp client Default Setting Ntp clientSntp client 4-65 ntp poll 4-70 ntp server Ntp client 4-68 ntp poll 4-70 show ntp Ntp serverSyntax Version number Syntax Ntp poll seconds no ntp poll Ntp authenticateSyntax No ntp authenticate Default Setting Ntp poll Ntp authentication-key4-71 Ntp authentication-key Show ntp Clock timezone-predefinedGMT-Greenwich-Mean-Time-Dublin,Edinburgh,Lisbon,London Clock timezone No clock summer-time Clock summer-time date 235959, Sunday, Week 3 of March 60 min Clock summer-time predefinedAustralia 235959, Sunday, Week 5 of March 60 min Europe Clock summer-time recurring Calendar set hour min sec day month year month day year This command displays the system clockCalendar set Show calendar System Status Commands Show startup-config25 System Status Commands Function Mode Show running-config4-79 Show running-config Command Line Interface Show startup-config4-78 This command displays system information Show systemShow users Show version Syntax No jumbo frame Default Setting Frame Size Commands26 Frame Size Commands Function Mode Jumbo frame Enables support for jumbo frames Copy Flash/File Commands27 Flash/File Commands Function Mode Copy None Following example shows how to download a configuration file Dir Delete public-key4-50 This command deletes a file or imageDelete Delete unit filename Column Heading Description Syntax Dir unit boot-rom config opcode filenameDir 28 File Directory Information Syntax Boot system unit boot-romconfig opcode filename WhichbootBoot system Syntax whichboot unit 29 Authentication Commands Command Group Function Authentication CommandsAuthentication Sequence Dir 4-89 whichboot Authentication login Username for setting the local user names and passwordsLocal Enable password sets the password for changing command modes Authentication enable 31 Radius Client Commands Function Mode Show radius-server Shows the current Radius settingsRadius Client Radius-server acct-port Default Setting Auth-portRetransmit Command Mode Radius-server host Radius-server auth-port Radius-server keySyntax Radius-server key keystring no radius-server key Radius-server timeout Radius-server retransmitShow radius-server Tacacs-server host 32 Tacacs Commands Function ModeShow tacacs-server Shows the current TACACS+ settings 101 TACACS+ Client Syntax Tacacs-server port portnumber no tacacs-server port Default Setting PortTacacs-server port Tacacs-server key Tacacs-server timeout Tacacs-server retransmitSyntax Tacacs-server key keystring no tacacs-server key Show tacacs-server Syntax No aaa group server radius tacacs+ group-name AAA Commands33 AAA Commands Function Mode Aaa group server No server index ip-address Server Group ConfigurationServer Aaa accounting dot1x Accounting is not enabled No servers are specified Command Usage ExampleAaa accounting exec Aaa accounting commands Minute Accounting exec Interface ConfigurationSyntax Accounting exec default list-nameno accounting exec Accounting dot1x Aaa authorization exec Accounting commands Authorization is not enabled No servers are specified Authorization exec Unit Stack unit. Range Port Port number. Range Show accountingInterface Ethernet unit/port Interface Configuration Ethernet Port Security Commands34 Port Security Commands Function Mode Status Disabled Action None Maximum Addresses 35 802.1X Port Authentication Command Function Mode 802.1X Port Authentication Syntax No dotx system-auth-control Default Setting Dot1x defaultAcquire a new client Dot1x timeout re-authperiod 117 Be re-authenticated Dot1x timeout tx-period Syntax Dot1x max-req count no dot1x max-req Default Command ModeDot1x max-req Dot1x port-control Single-host Dot1x re-authenticateSyntax Dot1x re-authenticate interface Dot1x operation-mode Seconds The number of seconds. Range Dot1x re-authenticationDot1x timeout quiet-period Syntax No dot1x re-authentication Command Mode Dot1x timeout tx-period Dot1x timeout re-authperiod Syntax Show dot1x statistics interface interface Dot1x intrusion-actionShow dot1x Block-traffic Backend State Machine Authenticator State Machine State Current state including initialize, reauthenticate Reauthentication State Machine Syntax No network-access mode mac-authentication Network-access mode36 Network Access Command Function Mode Max-mac-count Interface Mac-authentication Network-access max-mac-count 2048 Mac-authentication intrusion-actionMac-authentication max-mac-count Interface Config Syntax No network-access dynamic-vlan Default Setting Network-access dynamic-qosNetwork-access dynamic-vlan Syntax No network-access dynamic-qos Default Setting No network-access link-detection Network-access guest-vlanNetwork-access link-detection Following example enables dynamic Vlan assignment on port Network-access link-detection link-up Network-access link-detection link-down Network-access link-detection link-up-down Mac-authentication reauth-time1800 Unit This is unit Port Port number. Range Clear network-accessShow network-access Syntax Show network-access interface interface Show network-access mac-address-table Displays the settings for all interfacesDisplays all filters Login-success-page-url Successful web authentication 37 Web Authentication Command Function Mode Web-auth login-attempts Web-auth login-fail-page-urlLogin attempts Web-auth login-page-url Web-auth login-success-page-urlSwitch-generated login Web-auth quiet-period Web-auth session-timeout No web-auth Web-auth system-auth-controlWeb-auth No web-auth system-auth-control This command displays global web authentication parameters Show web-authShow web-auth interface Web-auth re-authenticate IP Web-auth re-authenticate Port Show web-auth summary Show web-auth summary 138 Access Control List Commands Access Control Lists38 Access Control Lists Command Groups Function IP ACLs Access-list ip39 IP ACLs Command Function Mode Syntax No access-list ip standard extended aclname Standard ACL Permit, deny Ip access-group4-143 show ip access-list4-143Access-list ip Syntax No permit deny any source bitmask host source Any destination address-bitmask host destination Source-port sport end destination-port dport endExtended ACL Syntax No ip access-group aclname Show ip access-listIp access-group Syntax Show ip access-list standard extended aclname 40 MAC ACL Commands Function Mode Show ip access-groupShow ip access-list4-143 This command shows the ports assigned to IP ACLs Access-list mac Syntax No access-list mac aclnameAclname Name of the ACL. Maximum length 16 characters Permit, deny MAC ACL Permit, deny Mac access-group4-148 Show mac access-listThis command displays the rules for configured MAC ACLs Syntax Show mac access-list aclname Show mac access-list4-147 Mac access-groupShow mac access-group Syntax Mac access-group aclname ACL Information Show access-listShow access-group 41 ACL Information Command Function Mode 42 Snmp Commands Function Mode Snmp Commands Syntax No snmp-server Default Setting Snmp-serverShow snmp Snmp-server community Syntax Snmp-server location text no snmp-server location Snmp-server contactSnmp-server location Syntax Snmp-server contact string no snmp-server contact Host Address None Notification Type Traps Snmp-server host Snmp Version UDP Port Snmp-server enable traps Snmp-server enable trapsIssue authentication and link-up-down traps Snmp-server engine-id This command shows the Snmp engine ID This example shows the default engine IDShow snmp engine-id This view includes MIB-2 Defaultview includes access to the entire MIB treeSnmp-server view Examples 44 show snmp view display description This command shows information on the Snmp viewsShow snmp view Snmp-server group Show snmp group 162 45 show snmp group display description Snmp-server user 164 This command shows information on Snmp users Show snmp user46 show snmp user display description Port-channel channel-idRange Interface Commands47 Interface Commands Function Mode Interface Description Speed-duplexSyntax Description string no description Syntax No negotiation Default Setting NegotiationNegotiation 4-168 capabilities Following example configures port 11 to use autonegotiation CapabilitiesCapabilities 4-169speed-duplex4-167 Syntax No flowcontrol Default Setting FlowcontrolNegotiation 4-168speed-duplex4-167 flowcontrol Shutdown Syntax No shutdown Default Setting Syntax Clear counters interface Switchport packet-ratePort-channel channel-idRange Default Setting Clear counters Syntax Show interfaces status interface This command displays the status for an interfaceShow interfaces status Following example clears statistics on port Shows the counters for all interfaces This command displays interface statisticsShow interfaces counters Syntax Show interfaces counters interface Show interfaces switchport Syntax Show interfaces switchport interfaceShows all interfaces 48 Interfaces Switchport Statistics Interface ethernet unit/port source port Mirror Port Commands49 Mirror Port Commands Function Mode Port monitor Syntax Show port monitor interface This command displays mirror informationFollowing shows mirroring configured from port 6 to port Show port monitor Rate-limit Rate Limit Commands50 Rate Limit Commands Function Mode Rate-limit Configures the maximum input rate for a port 179 173 Link Aggregation Commands51 Link Aggregation Commands 185 Dynamically Creating a Port Channel Channel-groupGuidelines for Creating Trunks General Guidelines Syntax No lacp Default Setting LacpFollowing example creates trunk 1 and then adds port 32768 Lacp system-priority Lacp admin-keyEthernet Interface Interface Configuration Port Channel Lacp admin-key Port Channel This command displays Lacp information Lacp port-priorityShow lacp LACPDUs Illegal Pkts Port Channel all52 show lacp counters display description Type 53 show lacp internal display description 55 show lacp sysid display description 54 show lacp neighbors display description Action Address Table Commands56 Address Table Commands Function Mode Mac-address-table static Clear mac-address-table dynamic Show mac-address-tableMac-address- MAC address Mask Bits to match in the address Sort Sort by address, vlan or interface Mac-address-table aging-time 196 Lldp Commands57 Lldp Commands Function Mode Show mac-address-table aging-time Vlan ID Mac-phy Physical layer specifications Lldp dot3-tlv Holdtime multiplier TTL 4*30 = 120 seconds Syntax no lldp Default SettingLldp Lldp holdtime-multiplier Packets Lldp medFastStartCountLldp notification-interval Syntax Lldp medfaststartcount packets Lldp refresh-interval Syntax Lldp refresh-interval seconds no lldp refresh-delay Syntax Lldp tx-delay seconds no lldp tx-delay Lldp reinit-delayLldp tx-delay Syntax Lldp reinit-delay seconds no lldp reinit-delay Tx-rx Lldp admin-statusSyntax No lldp notification Default Setting Lldp notification Lldp mednotification Syntax No lldp mednotification Default Setting Lldp basic-tlv port-description Lldp basic-tlv management-ip-address Syntax No lldp basic-tlv port-description Default Setting Lldp basic-tlv system-capabilitiesLldp basic-tlv system-description Lldp dot1-tlv proto-ident Syntax No lldp basic-tlv system-description Default SettingSyntax No lldp basic-tlv system-name Default Setting Lldp basic-tlv system-name Lldp dot1-tlv pvid Syntax No lldp dot1-tlv proto-vid Default SettingNo lldp dot1-tlv proto-ident Lldp dot1-tlv proto-vid No lldp dot3-tlv link-agg Lldp dot1-tlv vlan-nameNo lldp dot1-tlv vlan-name Lldp dot3-tlv link-agg Syntax No lldp dot3-tlv max-frame Syntax No lldp dot3-tlv mac-phy Default SettingLldp dot3-tlv mac-phy Lldp dot3-tlv max-frame Syntax No lldp medtlv extpoe Syntax No lldp dot3-tlv poe Default SettingLldp dot3-tlv poe Lldp medtlv extpoe No lldp medtlv location Lldp medtlv inventoryNo lldp medtlv inventory Lldp medtlv location No lldp medtlv network-policy Lldp medtlv med-capNo lldp medtlv med-cap Lldp medtlv network-policy Port-channel channel-idRange Command Mode Show lldp configSyntax Show lldp config detail interface Detail Shows configuration summary 211 Show lldp info local-device Syntax Show lldp info local-device detail interfaceDetail Shows detailed information Syntax Show lldp info statistics detail interface Show lldp info remote-deviceShow lldp info statistics Syntax Show lldp info remote-device detail interface 214 Upnp device UPnP CommandsUPnP Commands Function Mode Syntax No upnp device Default Setting Following example, the TTL is set to Upnp device ttlUpnp device advertise duration Syntax Upnp device ttl value Spanning Tree Commands 58 Spanning Tree Commands Function ModeShow upnp Syntax No spanning-tree Default Setting Spanning tree is enabledSpanning-tree Rstp Spanning-tree mode Spanning-tree forward-time Spanning-tree max-age Spanning-tree hello-time Spanning-tree priority Spanning-tree pathcost methodSyntax Spanning-tree pathcost method long short Spanning-tree mst-configuration Spanning-tree transmission-limitNo spanning-tree pathcost method MST Configuration Mst vlanNo mst instanceid vlan vlan-range Syntax Name name Mst priorityName Mst instanceid priority priority no mst instanceid priority Number Revision number of the spanning tree. Range RevisionMax-hops Syntax Revision number Spanning-tree cost Spanning-tree spanning-disabledSyntax No spanning-tree spanning-disabled Default Setting This example disables the spanning tree algorithm for port Priority The priority for a port. Range 0-240, in steps Spanning-tree port-priority Spanning-tree edge-port Syntax No spanning-tree edge-port Default Setting Syntax No spanning-tree portfast Default Setting Spanning-tree portfastSpanning-treeedge-port4-229 Spanning-tree link-type Spanning-tree loopback-detectionAuto Spanning-tree loopback-detection release-mode Spanning-tree mst cost Spanning-tree loopback-detection trap Spanning-tree mst port-priority4-234 Spanning-tree mst port-priority Syntax Show spanning-tree interface mst instanceid Spanning-tree protocol-migrationShow spanning-tree Syntax Spanning-tree protocol-migration interface Mstp Show spanning-tree mst configuration 60 Gvrp and Bridge Extension Commands Function Mode Vlan CommandsGvrp and Bridge Extension Commands 59 VLANs Command Groups Function Syntax No bridge-ext gvrp Default Setting Bridge-ext gvrpShow bridge-ext Syntax Show gvrp configuration interface Switchport gvrpShow gvrp configuration Syntax No switchport gvrp Default Setting Show garp timer Garp timer Vlan database Syntax Show garp timer interface61 Editing Vlan Groups Command Function Mode Editing Vlan Groups Show vlan By default only Vlan 1 exists and is activeVlan Database Configuration Vlan Interface vlan Configuring Vlan Interfaces62 Configuring Vlan Interfaces Command Function Mode Interface vlan Switchport mode All ports are in hybrid mode with the Pvid set to VlanSwitchport acceptable-frame-types4-246 All frame types Switchport acceptable-frame-typesSwitchport ingress-filtering Switchport mode Switchport native vlan Switchport allowed vlan No VLANs are included in the forbidden list Switchport forbidden vlan 63 Show Vlan Commands Function Mode Displaying Vlan InformationShow vlan Syntax No dot1q-tunnel system-tunnel-control 64 Ieee 802.1Q Tunneling Commands Function ModeGeneral Configuration Guidelines for QinQ Dot1q-tunnel system-tunnel-control Show dot1q-tunnel4-253 Show interfaces switchport Switchport dot1q-tunnel mode 0x8100 Switchport dot1q-tunnel tpidThis command displays information about QinQ tunnel ports Show dot1q-tunnel Edit Private Vlan Groups Private-vlan Configuring Private VLANsSwitchport dot1q-tunnel mode 65 Private Vlan Commands 65 Private Vlan Commands Function Mode Configure Private Vlan InterfacesDisplay Private Vlan Information Private vlan association Private-vlan Switchport mode private-vlan No private-vlan primary-vlan-idassociationNormal Vlan Switchport private-vlan host-association Switchport private-vlan isolatedIsolated-vlan-id- ID of isolated VLAN. Range Show vlan private-vlan Switchport private-vlan mapping Syntax Show vlan private-vlan community isolated primary 66 Protocol-based Vlan Commands Function Mode Protocol-vlan protocol-group Configuring Groups Protocol-vlan protocol-group Configuring VLANs No protocol groups are configuredNo protocol groups are mapped to any VLANs Show protocol-vlan protocol-group Show protocol-vlan protocol-group-vidSyntax Show protocol-vlan protocol-group group-id 68 Priority Commands Layer Function Mode Priority CommandsPriority Commands Layer 67 Priority Commands Command Groups Function Queue mode Switchport priority defaultSyntax Queue mode strict wrr no queue mode Queue bandwidth weight1...weight4 no queue bandwidth Weights 1, 2, 4, 8 are assigned to queues 0-3 respectivelyQueue bandwidth 69 Default CoS Values to Egress Queues Queue cos-mapQueue cos-mapqueueid cos1 ... cosn no queue cos-map Show queue bandwidth Show queue modeFollowing example shows how to change the CoS assignments This command shows the current queue mode Show queue cos-map Priority Commands Layer 3This command shows the class of service priority map 70 Priority Commands Layer 3 Function Mode Syntax No map ip dscp Default Setting Map ip dscp dscp-value cos cos-value no map ip dscp71 IP Dscp to CoS Vales IP Dscp Value CoS Value This command shows the IP Dscp priority map Show map ip dscpSyntax Show map ip dscp interface 72 Quality of Service Commands Function Mode Quality of Service Commands Syntax No class-map class-map-namematch-any Class-map Class Map Configuration MatchShow class map No policy-mappolicy-map-name Policy-map Policy Map Configuration ClassNo class class-map-name Syntax No police rate-kbpsburst-byteexceed-action drop set Policy Map Class ConfigurationSet Police Service-policy Syntax No service-policy input policy-map-nameNo policy map is attached to an interface Show policy-mappolicy-map-name class class-map-name Show class-mapShow policy-map Syntax Show class-map class-map-name Syntax Show policy-map interface interface input Voice Vlan Commands73 Voice Vlan Commands Function Mode Show policy-map interface Voice vlan voice-vlan-id no voice vlan Voice vlan Minutes Voice vlan agingVoice vlan mac-address Syntax Voice vlan aging minutes no voice vlan Switchport voice vlan Following example sets port 1 to Voice Vlan auto modeFollowing example adds a MAC OUI to the OUI Telephony list OUI Enabled Lldp Disabled Switchport voice vlan ruleSwitchport voice vlan security Syntax No switchport voice vlan rule oui lldp Following example sets the CoS priority to 5 on port Switchport voice vlan priorityFollowing example enables security filtering on port Priority-value- The CoS priority value. Range Syntax Show voice vlan oui status Show voice vlan 75 Igmp Snooping Commands Function Mode Multicast Filtering CommandsIgmp Snooping Commands 74 Multicast Filtering Commands Command Groups Function Ip igmp snooping vlan static Syntax No ip igmp snooping Default SettingFollowing example enables Igmp snooping Ip igmp snooping Ip igmp snooping leave-proxy Following configures the switch to use Igmp VersionSyntax No ip igmp snooping leave-proxy Default Setting Ip igmp snooping version Syntax No ip igmp snooping immediate-leave vlan-id Interface Configuration VlanFollowing shows how to enable immediate leave Ip igmp snooping immediate-leave Show ip igmp snooping This command shows the Igmp snooping configurationFollowing shows the current Igmp snooping configuration This command shows known multicast addresses Ip igmp snooping querier Igmp Query Commands Layer76 Igmp Query Commands Layer Function Mode Syntax No ip igmp snooping querier Default Setting Times Following shows how to configure the query count toIp igmp snooping query-count Ip igmp snooping query-interval Ip igmp snooping query-max-response-time Seconds The report delay advertised in Igmp queries. Range Static Multicast Routing Commands 77 Static Multicast Routing Commands Function ModeIp igmp snooping router-port-expire-time Syntax Show ip igmp snooping mrouter vlan vlan-id Ip igmp snooping vlan mrouterShow ip igmp snooping mrouter Syntax No ip igmp snooping vlan vlan-idmrouter interface 299 Igmp Filtering and Throttling Commands78 Igmp Filtering and Throttling Commands Function Mode Multicast router port types displayed include Static Profile-number- An Igmp filter profile number. Range Syntax No ip igmp filter Default SettingIp igmp profile Syntax No ip igmp profile profile-number No range low-ip-address high-ip-address Syntax Permit deny Default SettingPermit, deny Range Ip igmp max-groups Syntax No ip igmp filter profile-numberSyntax Ip igmp max-groups number no ip igmp max-groups Syntax Ip igmp max-groups action replace deny Ip igmp max-groups action Syntax Show ip igmp profile profile-number Show ip igmp filterShow ip igmp profile Syntax Show ip igmp filter interface interface Syntax Show ip igmp throttle interface interface Show ip igmp throttle interface Multicast groups assigned to the MVR Vlan Multicast Vlan Registration Commands79 Multicast Vlan Registration Commands Function Mode 305 Mvr Interface Configuration 306 80 show mvr display description Following shows the global MVR settingsShow mvr Syntax Show mvr interface interface members ip-address 82 show mvr members display description 81 show mvr interface display description 310 IP Interface Commands83 IP Interface Commands Function Mode Ip address Following example defines a default gateway for this device Ip default-gatewaySyntax Ip default-gateway gateway no ip default-gateway Gateway IP address of the default gateway Show ip interface This command submits a Bootp or Dhcp client requestThis command displays the settings of an IP interface Ip dhcp restart Ping Ip default-gateway4-310This command has no default for the host Show ip redirects Syntax Ip source-guard sip sip-macno ip source-guard IP Source Guard Commands84 IP Source Guard Commands Function Mode Ip source-guard 314 No ip source-guard binding mac-addressvlan vlan-id This example enables IP source guard on portNo configured entries Ip source-guard binding Ip source-guard4-313 ip dhcp snooping Ip dhcp snooping vlan This command shows the source guard binding tableShow ip source-guard Show ip source-guard binding Ip dhcp snooping Dhcp Snooping Commands85 Dhcp Snooping Commands Function Mode Syntax No ip dhcp snooping Default Setting 318 Ip dhcp snooping vlan 4-319 ip dhcp snooping trust This example enables Dhcp snooping globally for the switchThis example enables Dhcp snooping for Vlan Ip dhcp snooping vlan Ip dhcp snooping trust Syntax No ip dhcp snooping trust Default Setting This example enables MAC address verification Ip dhcp snooping verify mac-addressIp dhcp snooping information option This example enables the Dhcp Snooping Information Option Ip dhcp snooping information policyReplace This command shows the Dhcp snooping configuration settings Ip dhcp snooping database flashShow ip dhcp snooping Show ip dhcp snooping binding IP Cluster Commands86 Switch Cluster Commands Function Mode Syntax No cluster Default Setting Syntax No cluster commander Default Setting Cluster commander 10.254.254.1 Cluster ip-poolCluster member Syntax Cluster ip-pool ip-addressno cluster ip-pool This command shows the switch clustering configuration RcommandSyntax Rcommand id member-id Member-id- The ID number of the Member switch. Range This command shows the current switch cluster members Show cluster membersShow cluster candidates Software Features Appendix a Software Specifications Igmp RFC 1112 IGMPv2 RFC Management FeaturesGroups 1, 2, 3, 9 Statistics, History, Alarm, Event Standards Management Information Bases a Management Information Bases Software Specifications Symptom Action Table B-1 Troubleshooting Chart Using System Logs Differentiated Services Code Point Service Dscp Access Control List ACLBoot Protocol Bootp Class of Service CoS Group Attribute Registration Protocol Garp Garp Vlan Registration Protocol GvrpGeneric Attribute Registration Protocol Garp Generic Multicast Registration Protocol Gmrp In-Band Management Igmp SnoopingIgmp Query Internet Group Management Protocol Igmp Network Time Protocol NTP Multicast SwitchingPort Authentication Remote Authentication Dial-in User Service Radius Spanning Tree Algorithm STA Secure Shell SSHSimple Network Management Protocol Snmp Simple Network Time Protocol Sntp XModem Virtual LAN Vlan Numerics Index Index Link Layer Discovery Protocol See Index-4 Index-5 LLDP-MED TLV Type Length Value See alsoPage ES3528M-SFP E122007-DG-R01 149100035500A

Accton Technology ES3528M-SFP Ip dhcp snooping vlan, Syntax No ip dhcp snooping vlan vlan-id

Models: ES3528M-SFP

Example

This example enables DHCP snooping globally for the switch.

ip dhcp snooping vlan (4-319) ip dhcp snooping trust (4-320)

ip dhcp snooping vlan

Syntax

[no] ip dhcp snooping vlan vlan-id

Default Setting

Command Usage

Example

This example enables DHCP snooping for VLAN 1.