Configuring Address Resolution Protocol Settings | SonicWALL 3

Network > ARP

C14H A P T E R

Configuring Address Resolution Protocol Settings

Network > ARP

The ARP (Address Resolution Protocol) Cache stores IP or logical addresses received from ARP replies in order to minimize the number of ARP broadcasts on a network. ARP broadcasts can degrade network performance if too many broadcast requests are sent over the network. Once the ARP request is stored, the host does not have to send out ARP requests for the same IP datagram.

SONICWALL SONICOS STANDARD 3.0 ADMINISTRATOR’S GUIDE

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SonicWALL 3 manual Configuring Address Resolution Protocol Settings, Network ARP

Contents

SonicOS Standard Administrators Guide Table of Contents Part 2 System Part 3 Network Part 4 Modem Part 5 Wireless Part 8 VPN Configuring Site to Site VPN Policies Using Vii Part 9 Users Viii Part 11 Log Index Copyright Notice PrefaceTrademarks Limited Warranty XiiPage Organization of this Guide Part 10 Security Services Part 9 UsersPart 11 Log About this Guide Guide Conventions Icons Used in this Manual More Information on SonicWALL Products and Services SonicWALL Technical SupportNorth America Telephone Support International Telephone Support Current Documentation Xviii Introduction Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide Introduction What’s New in SonicOS Standard SonicWALL Management Interface Navigating the Management Interface SonicWALL Management Interface Applying Changes Status BarNavigating Tables Getting Help Common Icons in the Management InterfaceLogging Out Introduction Basic SonicWALL Security Appliance Setup SonicWALL Security Appliance Configuration StepsInternet Service Provider ISP Information Collecting Required ISP Information Other Information If You Have DSLIf You Have a Static IP Address SonicWALL Management Interface Using the SonicWALL Setup Wizard SonicWALL TZ 170 SP SonicWALL TZ 50 Wireless/TZ 150 Wireless/TZ 170 Wireless Configuring a Static IP Address Internet Connection Using the SonicWALL Setup Wizard Configuring a Dhcp Internet Connection Configuring a PPPoE Internet Connection Configuring Pptp Internet Connectivity Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide Configuring the TZ 170 SP using the Setup Wizard Welcome to the SonicWALL Setup Wizard Changing the PasswordConfiguring the WAN Network Mode Selecting the Deployment Scenario Configuring WAN Settings Configuring LAN SettingsConfiguring LAN Dhcp Settings Configuring Wlan 802.11b/g Settings Configuring the LAN Dhcp Settings Configuring the LAN SettingsConfiguring Wlan 802.11b Settings Configuring the WAN Network Mode Configuring the TZ 170 Wireless as a Secure Wireless Bridge Configuring Wlan Network Setting Configuring Secure Wireless Bridge Settings Registering Your SonicWALL Security Appliance Before You Register Registering Your SonicWALL Security Appliance Registering Your SonicWALL Security Appliance Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide System Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide System Status Viewing System Status InformationSystem Status System Messages WizardsSystem Information Security Services Latest Alerts SonicWALL TZ 50 Wireless SonicWALL TZ 150 WirelessNetwork Interfaces SonicWALL Security Appliance Model Interfaces SonicWALL TZ System Licenses System LicensesSystem Licenses Currently Licensed Nodes Node License StatusNode License Exclusion List Security Services Summary Manage Security Services Online Manual Upgrade Manual Upgrade for Closed Environments From a Computer Connected to the Internet System Licenses System Administration Using System AdministrationSystem Administration Login Security Name/PasswordFirewall Name Web Management Settings Enable Snmp Advanced ManagementFour addresses or host names can be used Click OK Enable Management Using SonicWALL GMS Using System Administration Setting System Time System TimeSet Time System Time NTP Settings Setting the SonicWALL Security Appliance Time Configuring System Settings System SettingsSettings Import Settings Export Settings Click Export SettingsFirmware Management New Firmware Firmware Management Settings SafeMode Rebooting the SonicWALL Security ApplianceSystem Information Firmware Management System Diagnostics System Diagnostics Tech Support Report Generating a Tech Support Report Active Connections Monitor Settings Diagnostic ToolsActive Connections Monitor CPU Monitor DNS Name Lookup Find Network Path Packet Trace Select Packet Trace from the Diagnostic tool menu Ping Reverse Name ResolutionProcess Monitor System Restart Network Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide Network Settings Configuring Network SettingsNetwork Settings Setup Wizard Interfaces DNS Settings Interface Options by SonicWALL Security Appliance Configuring the WAN Interface Configuring Transparent Mode Configuration Example Configuring the WAN Interface Configuring NAT Enabled Configuring NAT with Dhcp Client Configuring NAT with PPPoE Client Configuring NAT with L2TP Client Configuring NAT with Pptp Client Configuring Ethernet Settings in WAN Properties Configuring the WAN Interface Basic LAN Configuration Configuring the LAN InterfaceConfiguring Multiple LAN Subnets Configuring Ethernet Settings Configuring the OPT InterfaceConfiguring the OPT Interface Configuring Transparent Mode Configuring the DMZ Interface Configuring NAT ModeConfiguring the DMZ Interface Select OPT in NAT Mode Configuring Transparent Mode Configuring the Modem Interface TZ 170 SP Configuring the Modem Interface TZ 170 SPSelect DMZ in NAT Mode Modem Settings Profiles Select Enable WAN Failover Failover Advanced Activating the Modem Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide Configuring One-to-One NAT Select the Enable One-to-One NAT check boxNetwork One-to-One NAT Network One-to-One NAT Select Enable One-to-One NAT One-to-One NAT Configuration ExampleClick Firewall, then Access Rules Allow Service Http Source WAN Configuring One-to-One NAT Network Web Proxy Configuring Web Proxy SettingsNetwork Web Proxy Bypass Proxy Servers Upon Proxy Failure Configuring Automatic Web Proxy ForwardingForward OPT/DMZ/WLAN Client Requests to Proxy Server Network Intranet Configuring Intranet SettingsNetwork Intranet Installation Intranet SettingsSpecified address ranges are attached to the LAN link Specified address ranges are attached to the WAN link Network Routing Configuring Static RoutesNetwork Routing Static Route Configuration Example Static RoutesKey terms SonicWALL LAN IP Address Route Advertisement Configuration Route Advertisement Routing Table Network ARP Configuring Address Resolution Protocol SettingsNetwork ARP Static ARP Entries Adding a Secondary Subnet using the Static ARP MethodSecondary Subnets with Static ARP Network ARP Prohibit Dynamic ARP Entries Navigating and Sorting the ARP Cache Table Flushing the ARP Cache Configuring Address Resolution Protocol Settings Configuring the Dhcp Server Dhcp Server SettingsNetwork Dhcp Server Network Dhcp Server Configuring Dhcp Server for Dynamic Ranges Dhcp Server Lease Scopes Configuring Static Dhcp Entries 101 Current Dhcp Leases Configuring Dynamic DNS Network Dynamic DNSSupported Ddns Providers Network Dynamic DNS Additional Services offered by Dynamic DNS Providers Configuring Dynamic DNS 105 106 Dynamic DNS Settings Table 107 108 Modem 109 110 Viewing Modem Status Modem StatusModem Status 111 Modem Status Configuring Modem Settings Modem SettingsModem Settings 113 Configuring Profile and Modem Settings Configuring Modem Failover Modem Failover SettingsModem Failover Modem Failover Configuring Modem Failover Modem Advanced Modem Advanced117 Configuring Advanced Modem Settings Configuring Modem Dialup Properties Modem Dialup ProfilesDial-Up Profiles Modem Dialup Profiles Modem Dialup Profiles Modem Profile Configuration Configuring a Dialup Profile Modem Dialup Profiles Modem Profile Configuration 121 122 Chat Scripts 123 Custom Chat Scripts Wireless 125 126 LAN WAN 127 Considerations for Using Wireless Connections Optimal Wireless Performance Recommendations Wireless Guest Services WGSOptimal Wireless Performance Recommendations 129 WiFiSec Enforcement Wireless Node Count EnforcementMAC Filter List Using the Wireless Wizard Welcome to the SonicWALL Wireless Configuration WizardWlan Network Settings Using the Wireless Wizard Wlan 802.11b Settings Wlan Security Settings Wireless Guest Services WiFiSec VPN Client User Authentication133 Wireless Configuration Summary Updating the TZ 50 Wireless/TZ 150 Wireless/TZ 170 Wireless Wireless Status Configuring Additional Wireless FeaturesWireless Status 135 Wlan Settings Access Point Status Station Status Wlan Statistics137 138 Configuring Wireless Settings Wireless SettingsWireless Radio Mode Wireless Settings Wireless Settings Secure Wireless Bridging TZ 170 Only 141 Configuring a Secure Wireless Bridge Wireless Bridging without WiFiSec Network Settings for the Example Network143 Advanced Configuration for both VPN Policies Select LAN for VPN Terminated at Wireless Bridge VPN Policy 145 146 Configuring WEP and WPA Encryption Wireless WEP/WPA EncryptionWireless WEP/WPA Encryption 147 WPA Encryption Settings WEP Encryption SettingsWEP Encryption Keys WPA-EAP Settings WPA-PSK Settings149 WPA Settings Wireless Advanced Wireless AdvancedBeaconing & Ssid Controls 151 Advanced Radio Settings Wireless Client CommunicationsConfigurable Antenna Diversity TZ 170 Wireless 153 154 Configuring the MAC Filter List Wireless MAC Filter ListWireless MAC Filter List 155 156 Configuring Wireless IDS Wireless IDSWireless Bridge IDS Wireless IDS Access Point IDS Enable Client Null ProbingRogue Access Point Detection Association Flood Detection Authorizing Access Points on Your Network 159 160 Wireless Guest Services 161 162 WGS Status WGS Status163 Viewing Wireless Guest Services Status Configuring Wireless Guest Services WGS SettingsWGS Settings 165 Enable Dynamic Address Translation DAT Bypass Guest AuthenticationBypass Filters for Guest Accounts Enable Smtp Redirect Enable URL Allow List for Authenticated UsersEnable IP Address Deny List for Authenticated Users 167 Customize Login Check the Customize Login Page box Custom Post Authentication Redirect Maximum Concurrent GuestsWGS Account Profiles To add a profile Account Lifetime Managing Wireless Guest Accounts WGS AccountsWorking with Guest Accounts WGS Accounts Automatically Generating Guest Accounts Manually Configuring Wireless Guests Account Detail PrintingAccount Profile 173 Flexible Default Route Secure Access Point with Virtual Adapter Support Secure Access Point with Wireless Guest Services 175 176 Firewall 177 178 Configuring Network Access Rules Network Access Rules OverviewNetwork Access Rules Overview 179 Using Bandwidth Management with Access Rules Firewall Access Rules Restoring Default Network Access Rules Adding Rules using the Network Access Rule WizardConfiguring a Public Server Rule Navigating and Sorting the Access Rules Table Entries Configuring a General Network Access Rule 183 Adding Rules Using the Add Rule Window 185 Configuring Network Access Rules Click the Bandwidth tab Blocking LAN Access for Specific Services Rule ExamplesEnabling Ping Select WAN from the Destination Ethernet menu 188 Configuring Advanced Rule Options Access Rules AdvancedWindows Networking NetBIOS Broadcast Pass Through Access Rules Advanced TCP Connection Inactivity Timeout Access Rule Service OptionsDetection Prevention Source Routed Packets Configuring Custom Services Firewall ServicesUser Defined Custom Services Firewall Services Predefined Services Configuring VoIP Firewall VoIPVoIP Protocols Firewall VoIP 323 SIP Configuring the VoIP Settings SIP SettingsSettings 195 196 Monitoring Active Firewall Connections Firewall Connections MonitorFirewall Connections Monitor 197 Setting Filter Logic Using Group FiltersClick Apply Filters Source IP Priority && Category && Source && Destination VPN 199 200 Configuring VPN Settings SonicWALL VPN Options OverviewSonicWALL VPN Options Overview 201 VPN Global Settings VPN SettingsVPN Policies Configuring GroupVPN Policy on the SonicWALL Configuring GroupVPN Policy on the SonicWALLCurrently Active VPN Tunnels Navigating and Sorting the VPN Policies Entries Configuring IKE Preshared Secret 205 206 207 Configuring GroupVPN with IKE 3rd Party Certificates 209 210 211 212 Site to Site VPN Configurations Site to Site VPN ConfigurationsExport a GroupVPN Client Policy Site-to-Site VPN Deployments VPN Planning Sheet for Site-to-Site VPN Policies Site aRouter Additional Information 215 Creating a Typical IKE Preshared Secret VPN Policy Creating a Custom VPN Policy IKE with Preshared Secret 217 Creating a Manual Key VPN Policy with the VPN Policy Wizard 219 220 Tip The Shared Secret must be a minimum of four characters Configuring a VPN Policy IKE with Preshared Secret221 222 223 Configuring a VPN Policy using Manual Key Select Manual Key from the IPSec Keying Mode menu General tab, select IKE using 3rd Party Certificates Configuring a VPN Policy with IKE 3rd Party Certificate225 226 227 228 Configuring Advanced VPN Settings Advanced VPN SettingsVPN Advanced VPN Advanced VPN User Authentication Settings VPN Bandwidth Management Select Enable VPN Bandwidth Management231 Configuring Advanced VPN Settings Configuring Dhcp Over VPN Dhcp Relay ModeVPN Dhcp over VPN VPN Dhcp over VPN Configuring the Central Gateway for Dhcp Over VPN Configuring Dhcp over VPN Remote Gateway 235 Click OK to exit the Dhcp over VPN Configuration window Device ConfigurationCurrent Dhcp over VPN Leases Configuring L2TP Server Settings VPN L2TP ServerVPN L2TP Server 237 IP Address Settings L2TP Server SettingsAdding L2TP Clients to the SonicWALL Currently Active L2TP Sessions 239 Configuring L2TP Server Settings Managing Certificates Digital Certificates OverviewSonicWALL Third-Party Digital Certificate Support Digital Certificates Overview Importing Certificate with Private Key VPN Local CertificatesCertificate Details Generating a Certificate Signing Request Delete This CertificateVPN Local Certificates Select Add New Local Certificate from the Certificates menu Importing CA Certificates into the SonicWALL VPN CA CertificatesSelect Add New CA Certificate Automatic CRL Update Certificate Revocation List CRLImporting a CRL List Click Browse for Please select a file to import 246 Users 247 248 User Level Authentication Overview User Level Authentication OverviewUsers Status 249 Authentication Method Users SettingsActive User Sessions Global User Settings Internet Authentication ExclusionsUsers Settings 251 Acceptable Use Policy Select Use Radius for user authentication Configuring Radius Authentication253 254 255 256 Configuring Local Users Users Local UsersUsers Local Users 257 Adding a Local User Security Services 259 260 SonicWALL Security Services SonicWALL Security Services MySonicWALL.com Activating Free Trials Security Services Summary Security Services Summary Manage LicensesSecurity Services Summary 263 Security Services Information Security Services SettingsIf Your SonicWALL Security Appliance is Not Registered SonicWALL Content Filtering Service SonicWALL Content Filtering Service265 Content Filter Status Security Services Content FilterActivating SonicWALL Content Filtering Service Security Services Content Filter Activating a SonicWALL Content Filtering Service267 Content Filter Type Restrict Web Features Configuring SonicWALL Filter Properties Message to Display when BlockingConfiguring SonicWALL Filter Properties Trusted Domains Allowed/Forbidden Domains Custom ListKeyword Blocking Disable all Web traffic except for Allowed Domains 271 Consent Mandatory Filtered IP Addresses Consent Page URL mandatory filteringAdding a New Address 273 274 SonicWALL Network Anti-Virus Overview SonicWALL Network Anti-Virus Overview275 Security Services Anti-Virus Activating SonicWALL Network Anti-Virus Activating a SonicWALL Network Anti-Virus Free Trial Security Services Anti-Virus277 Security Services E-Mail Filter Configuring SonicWALL Network Anti-Virus Managing SonicWALL Gateway Anti-Virus Service SonicWALL Gateway Anti-Virus OverviewSonicWALL Gateway Anti-Virus Overview 279 SonicWALL Gateway Anti-Virus/Intrusion Prevention Features Activating SonicWALL Gateway Anti-Virus 281 Activating SonicWALL Gateway Anti-Virus Activating the SonicWALL Gateway Anti-Virus Configuring SonicWALL Gateway Anti-Virus Configuring SonicWALL Gateway Anti-Virus283 284 Managing SonicWALL Intrusion Prevention Service SonicWALL Intrusion Prevention ServiceSonicWALL IPS Features SonicWALL Intrusion Prevention Service SonicWALL Deep Packet Inspection How SonicWALL’s Deep Packet Inspection Architecture Works 287 Security Services Intrusion Prevention Activating SonicWALL IPS Activating the SonicWALL IPS Free Trial Security Services Intrusion Prevention289 290 Managing SonicWALL Global Security Client SonicWALL Global Security ClientSonicWALL Global Security Client 291 How SonicWALL Global Security Client Works Global Security Client FeaturesSonicWALL Global Security Client Activation Activating SonicWALL Global Security Client 293 294 Log 295 296 Viewing Log Events SonicOS Log Event Messages OverviewSonicOS Log Event Messages Overview 297 Log View Navigating and Sorting Log View Table Entries SonicOS Log Entries RefreshClear Log Mail Log 300 Log Categories Specifying Log CategoriesLog Categories Alerts & Snmp Traps Configuring Log Automation Log AutomationLog Automation 303 Mail Syslog Servers 305 306 Configuring Name Resolution Log Name ResolutionLog Name Resolution 307 Name Resolution Method list, select Selecting Name Resolution SettingsSpecifying the DNS Server Reset Data Generating and Viewing Log ReportsLog Reports Data Collection Bandwidth Usage by Service View DataWeb Site Hits Bandwidth Usage by IP Address Log ViewPoint SonicWALL ViewPointLog ViewPoint 311 Generating and Viewing Log Reports SonicSetup SonicSetup313 Introduction and Discovery Device Selection Diagnostics Diagnostics315 SonicROM Recovery Diagnostic Results SonicOS Recovery SonicOS Recovery317 Restoring Factory Defaults Address Synchronization Address Synchronization319 320 SonicWALL SafeMode SonicWALL SafeMode321 322 Upgrading SonicOS Firmware Upgrading SonicOS Firmware323 324 Index Numerics 326 VPN 327 WPA, see WiFiSec Protected Access 232- 000609- 00 Rev E 02/05