DoS Defend, ¾ Illegal ARP Packet | TP-Link TL-SG3216 manual

Figure 11-15 ARP Statistics

The following entries are displayed on this screen:

¾Auto Refresh

Auto Refresh:Enable/Disable the Auto Refresh feature.

Refresh Interval: Specify the refresh interval to display the ARP Statistics.

¾Illegal ARP Packet

Port:

Displays the port number.

Trusted Port:Indicates the port is an ARP Trusted Port or not.

Illegal ARP Packet: Displays the number of the received illegal ARP packets.

11.3 DoS Defend

DoS (Denial of Service) Attack is to occupy the network bandwidth maliciously by the network attackers or the evil programs sending a lot of service requests to the Host, which incurs an abnormal service or even breakdown of the network.

With DoS Defend function enabled, the switch can analyze the specific fields of the IP packets and distinguish the malicious DoS attack packets. Upon detecting the packets, the switch will discard the illegal packets directly and limit the transmission rate of the legal packets if the over legal packets may incur a breakdown of the network. The switch can defend a few types of DoS attack listed in the following table.

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TP-Link TL-SG3216 manual DoS Defend, ¾ Illegal ARP Packet

Contents

TL-SG3216/TL-SG3424 JetStream L2 Lite Managed Switch Copyright & Trademarks Contents Gvrp 100 VII NDP Package Contents About this Guide Intended ReadersConventions Overview of This Guide System Switching Vlan Spanning Tree Multicast QoS ACL Network Security Snmp Cluster Return to Contents Main Features Overview of the SwitchIntroduction Front Panel Appearance Description¾ LEDs Name Status Indication Rear Panel Login Login to the SwitchConfiguration Return to Contents System System InfoSystem Summary ¾ Port Status Port TypeRate Status System Time Device Description¾ Device Description Current System Get GMTSynchronize With PC’S Clock ¾ IP Config System IP User Manage User ConfigUser Table User ID, Name, Access Level and status Operation ¾ User InfoUser Status ¾ User Table Config Restore Config Backup¾ Config Restore System Tools Firmware Upgrade ¾ Config Backup Access Security System RebootSystem Reset Access Control ¾ Access Control Config ¾ Session ConfigIP Address&Mask MAC Address SSL Config ¾ Access User Number SSH Config ¾ Global Config¾ Certificate Download ¾ Key Download Protocol Idle TimeoutMax Connect ¾ Configuration Procedure Key TypeDownload ¾ Network Requirements Application Example 2 for SSH Page Return to Contents Switching Port ConfigPort Port Select Port Mirror DescriptionSpeed and Duplex Flow Control Mirror Mode GroupMirroring Mode Port Security ¾ Port Security Max Learned MAC LAGLearned Num LAG Table Aggregate Arithmetic¾ LAG Table Group Number Static LAG Detail Information ¾ LAG Config Lacp ConfigLAG will delete this LAG ¾ Lacp Config Admin KeySystem Priority Port Priority Traffic Summary Traffic Monitor¾ Auto Refresh Traffic Statistics MAC Address Address Table Bound MAC addressWay Port ¾ Search Option ¾ Address Table MAC Address Displays the MAC address learned by the switch Static AddressDisplays the corresponding Vlan ID of the MAC address ¾ Create Static Address Dynamic Address ¾ Static Address Table ¾ Aging Config ¾ Dynamic Address Table Filtering Address Bind ¾ Create Filtering Address ¾ Filtering Address Table Vlan 802.1Q Vlan ¾ Link Types of ports ¾ Pvid Vlan Config ¾ Vlan TableVlan ID Select Description ： ¾ Vlan Config Enter the ID number of VlanIs valid or not ¾ Vlan Members ¾ Vlan Port Config Port Displays the port number Required. On the VLAN→802.1Q VLAN→Port Config page, set Required. On the VLAN→802.1Q VLAN→VLAN Config¾ Vlan of Port Vlan Description VLAN→VLAN Config MAC Vlan Protocol Vlan ¾ MAC Vlan TableMAC Select Step Operation Description ¾ The Procedure for the Switch to Identify Packet Protocol ¾ Encapsulation Format of Ethernet Data ¾ The Implementation of Protocol Vlan Encapsulation802.3 raw 802.2 LLC Snap Protocol Vlan packets are processed in the following way Protocol Group Protocol Group Table¾ Protocol Group Table Protocol Template ¾ Protocol Group Config¾ Protocol Group Member Application Example for 802.1Q Vlan Required. On VLAN→802.1Q VLAN→Port Config page, configure ¾ Network Diagram ¾ Configuration ProcedureRequired. On VLAN→802.1Q VLAN→VLAN Config page, create a Application Example for MAC Vlan ¾ Network Diagram Application Example for Protocol Vlan Required. On VLAN→Protocol VLAN→Protocol Template Gvrp On VLAN→Protocol VLAN→Protocol Group page, create protocol ¾ Gvrp ¾ Port Config Select Port Status Registration Mode Configuration Procedure Spanning Tree ¾ STP Elements ¾ Bpdu Comparing Principle in STP mode ¾ STP Timers¾ STP Generation Step Operation Tips ： ¾ Rstp Elements ¾ Mstp Elements ¾ Port States ¾ Port Roles STP Config STP Config Forward Delay VersionHello Time Max Age Port Config STP Summary Priority ExtPathIntPath Edge Port Mstp Instance Region ConfigPort Status Instance Config ¾ Region Config Instance Port Config ¾ Instance TableInstance Clear Path Cost Instance IDPort Role STP Security Port Protect ¾ Bpdu Protect ¾ TC Protect¾ Bpdu Filter Loop Protect Root ProtectTC Protect Bpdu Protect Application Example for STP Function TC Protect On Spanning Tree→STP Config→Port Config On Spanning Tree→STP Config→STP ConfigOn Spanning Tree→MSTP Instance→Instance Configure Switch D ¾ Suggestion for Configuration ¾ Multicast Overview Multicast¾ Multicast Address ¾ Multicast Address Table Multicast IP Port Igmp Snooping ¾ Igmp Snooping¾ Igmp Snooping Process ¾ Igmp Messages Snooping Config ¾ Igmp Snooping Fundamentals ¾ Igmp Snooping Status Description Displays Igmp Snooping status Member Igmp Snooping Fast Leave Router Port Time Member Port TimeLeave Time Static Router Port Snooping→Snooping Config and Port Config Multicast→IGMP Snooping→VLAN ConfigMulticast Vlan Displays the Vlan ID ¾ Multicast Vlan Vlan On the Multicast→IGMP Snooping→Snooping ConfigMulticast→IGMP Snooping→Multicast Vlan ¾ Configuration Procedure Step Operation Description Snooping→Port ConfigSnooping→Snooping Config Multicast IP Multicast IP Table Static Multicast IP ¾ Create Static Multicast Multicast Filter¾ Static Multicast IP Table IP-Range IP Range IDStart Multicast IP End Multicast IP ¾ Port Filter Config Action ModePort Filter Filter Packet Statistics Ports taking up too much bandwidthDisplays the LAG number which the port belongs to Multicast→Multicast Filter→IP-Range ¾ Igmp Statistics QoS ¾ Priority Mode¾ QoS ¾ Schedule Mode 802.1Q frame SP-Mode DiffServ ¾ Port Priority ConfigPort Priority Schedule Mode Required. On QoS→DiffServ→Schedule Mode¾ Schedule Mode Config Required. On QoS→DiffServ→Port Priority Dscp Priority 3 802.1P Priority¾ Priority Level ¾ Dscp Priority Config Required. On QoS→DiffServ→DSCP Priority Bandwidth Control ¾ Rate Limit ConfigRate Limit ¾ Storm Control Config Storm Control Voice Vlan Broadcast RateBps Mulitcast Rate ¾ Security Mode of Voice Vlan TAG Security Packet Type Processing Mode Global ConfigEnter the Vlan ID of the voice Vlan Select the desired port for voice Vlan configuration. It is OUI Config Configuration Procedure of Voice Vlan Displays the OUI address of the voice device ACL Time-RangeTime-Range Summary Index Time-Range Create ACL Config Holiday Config¾ Create Holiday ¾ Holiday Table ACL Summary ACL Create¾ Rule Table ¾ Create ACL MAC ACL ¾ Create MAC ACLRule ID EtherType Standard-IP ACL Extend-IP ACL¾ Create Standard-IP ACL Time-Range IP Protocol ¾ Create Extend-IP ACLTCP Flag ： Policy Config Policy Summary Policy Create Action Create¾ Create Policy ¾ Create Action Policy Binding Binding Table Vlan Binding Port BindingDirection Displays the binding direction ¾ VLAN-Bind Config Application Example for ACLEnter the ID of the Vlan you want to bind ¾ VLAN-Bind Table On ACL→ACL Config→ACL Create page, create ACL On ACL→ACL Config→Standard-IP ACL page, select ACL Network Security IP-MAC Binding Manual Binding ¾ Manual Binding Option Enter the Vlan IDProtect Type Select the Protect Type for the entry ¾ Manual Binding Table ARP Scanning Dhcp Snooping Start IP AddressEnd IP Address Scan Network diagram for DHCP-snooping implementation ¾ Dhcp Working Principle ¾ Option Dhcp Cheating Attack Implementation Procedure ¾ Dhcp Cheating Attack ¾ Dhcp Snooping Config ¾ Port Config Port Select ¾ Option 82 ConfigCustomization Circuit ID Remote ID ¾ Imitating Gateway ARP Inspection¾ Cheating Gateway 10 ARP Attack Cheating Gateway ¾ Cheating Terminal Hosts ¾ Man-In-The-Middle Attack ¾ ARP Flooding Attack ¾ ARP Detect ARP Detect¾ Trusted Port Required. On the Network Security→IP-MAC ARP DefendNetwork Security→ARP ARP Statistics ¾ ARP DefendDefend Speed DoS Defend ¾ Illegal ARP Packet DoS Attack Type Description ¾ Configure ¾ Architecture of 802.1X Authentication11.4 ¾ Defend Table ¾ The Mechanism of an 802.1X Authentication System ¾ 802.1X Authentication Procedure ¾ 802.1X Timer ¾ Guest Vlan Authentication Method 802.1XGuest Vlan Guest Vlan ID Server Timeout Supplicant TimeoutRetry Times Control Mode Radius ServerControl Type Authorized Required. On the Network Security→802.1X→Radius On the Network Security→802.1X→Global ConfigRequired. On the Network Security→802.1X→Port Snmp ¾ Snmp Overview¾ Snmp Management Frame ¾ Snmp Versions ¾ Snmp Configuration Outline ¾ MIB Introduction ¾ Local Engine Snmp Config¾ Remote Engine Snmp View MIB Object IDView Type View Name ¾ Group Config Snmp Group Snmp User ¾ Group Table Auth Mode Auth PasswordPrivacy Mode Privacy Password Access ¾ Community ConfigSnmp Community Required. On the SNMP→SNMP Config→Global Required. On the SNMP→SNMP Config→SNMPMIB View ¾ Community Table On the SNMP→SNMP Config→SNMP Notification Timeout UDP PortUser Retry ¾ Rmon Group RmonRmon Group Function History Control Event Config¾ History Control Table Alarm Config ¾ Event Table Variable Sample TypeRising Threshold Rising Event 179 Cluster ¾ Cluster Role Neighbor Info 13.1 NDP¾ Introduction to Cluster ¾ Neighbor NDP Summary¾ Neighbor Info ¾ Port Status Displays the port number of the switch NDP NDP Config EnableDisable ¾ Global Cofig Ntdp Device TableDevice MAC Cluster Name Ntdp Summary HopsNeighbor Info Collect Topology Ntdp Config Port Displays the port number of the switch Ntdp Hop Delay Ntdp Port DelayNtdp Interval Time Ntdp Hops Cluster Cluster Summary¾ Global Cluster Cluster Config ¾ Global Config Cluster ¾ Current Role ¾ Role Change Application Example for Cluster Function On Cluster→NDP→NDP Config page, enable NDP On Cluster→NTDP→NTDP Config page, enable 194 System Monitor MaintenanceCPU Monitor Memory Monitor 14.2 Log Log Table Local Log ¾ Local Log Config Remote LogLog Buffer Log File ¾ Log Host Backup LogHost IP Error Device DiagnoseCable Test Pair Switch is available Network DiagnoseLoopback Ping ¾ Ping Config Tracert ¾ Tracert Config 10 Tracert Following entries are displayed on this screen Appendix a Specifications Appendix B Configuring the PCs 207 Now Hardware Installation Appendix C Load Software using FTPConfigure the Hyper Terminal 210 Download Firmware via bootUtil menu Figure C-5 Port Settings TP-LINK upgrade You can only use the port 1 to upgrade Are you want to upgrade the firmwareY/N y TP-LINK start Start User Installation Guide Appendix D 802.1X Client Software 215 216 Uninstall Software Figure D-7 InstallShield Wizard Complete Configuration Figure D-11 Uninstall Complete 219 FAQ Figure D-16 Connection Status 221 Appendix E Glossary Multicast Switching Group Attribute Registration Protocol GarpIeee 802.1D Ieee 802.1Q Port Authentication Remote Authentication Dial-in User Service RadiusLink Aggregation Link Aggregation Control Protocol Lacp Simple Network Management Protocol Snmp Simple Network Time Protocol SntpSpanning Tree Algorithm STA Telnet