Configuring Dynamic DNS in SonicWALL DHCP - Comprehensive Guide

CHAPTER 16: Configuring Dynamic DNS

Specify IP Address manually - Allows for the IP address to be registered to be manually specified and asserted.

11The Off-line Settings section controls what IP Address is registered with the dynamic DNS service provider if the dynamic DNS entry is taken off-line locally (disabled) on the SonicWALL. The options are:

Do nothing - the default setting. This allows the previously registered address to remain current with the dynamic DNS provider.

Use the Off-Line IP Address previously configured at Providers site - If your provider supports manual configuration of Off-Line Settings, you can select this option to use those settings when this profile is taken administratively offline.

Make Host Unknown - De-registers the entry altogether. This action may take time to propagate through the DNS system.

Specify IP Address manually - Allows for an alternative address to be registered in the even that the entry is taken off-line.

12Click OK.

106	SONICWALL SONICOS STANDARD 3.0 ADMINISTRATOR’S GUIDE

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Contents

SonicOS Standard Administrators Guide Table of Contents Part 2 System Part 3 Network Part 4 Modem Part 5 Wireless Part 8 VPN Vii Configuring Site to Site VPN Policies Using Viii Part 9 Users Part 11 Log Index Trademarks PrefaceCopyright Notice Xii Limited WarrantyPage Organization of this Guide Part 9 Users Part 10 Security ServicesPart 11 Log About this Guide Icons Used in this Manual Guide Conventions SonicWALL Technical Support More Information on SonicWALL Products and ServicesNorth America Telephone Support International Telephone Support Xviii Current Documentation Introduction Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide What’s New in SonicOS Standard Introduction SonicWALL Management Interface SonicWALL Management Interface Navigating the Management Interface Navigating Tables Status BarApplying Changes Logging Out Common Icons in the Management InterfaceGetting Help Introduction SonicWALL Security Appliance Configuration Steps Basic SonicWALL Security Appliance SetupInternet Service Provider ISP Information Collecting Required ISP Information If You Have DSL Other InformationIf You Have a Static IP Address SonicWALL Management Interface SonicWALL TZ 170 SP Using the SonicWALL Setup Wizard Configuring a Static IP Address Internet Connection SonicWALL TZ 50 Wireless/TZ 150 Wireless/TZ 170 Wireless Using the SonicWALL Setup Wizard Configuring a PPPoE Internet Connection Configuring a Dhcp Internet Connection Configuring Pptp Internet Connectivity Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide Configuring the TZ 170 SP using the Setup Wizard Changing the Password Welcome to the SonicWALL Setup WizardConfiguring the WAN Network Mode Selecting the Deployment Scenario Configuring LAN Settings Configuring WAN SettingsConfiguring LAN Dhcp Settings Configuring Wlan 802.11b/g Settings Configuring Wlan 802.11b Settings Configuring the LAN SettingsConfiguring the LAN Dhcp Settings Configuring the WAN Network Mode Configuring the TZ 170 Wireless as a Secure Wireless Bridge Configuring Secure Wireless Bridge Settings Configuring Wlan Network Setting Before You Register Registering Your SonicWALL Security Appliance 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 Information WizardsSystem Messages Latest Alerts Security Services SonicWALL TZ 150 Wireless SonicWALL TZ 50 WirelessNetwork Interfaces SonicWALL Security Appliance Model Interfaces SonicWALL TZ System Licenses System LicensesSystem Licenses Node License Exclusion List Node License StatusCurrently Licensed Nodes Security Services Summary Manual Upgrade for Closed Environments Manage Security Services Online Manual Upgrade From a Computer Connected to the Internet System Licenses System Administration Using System AdministrationSystem Administration Firewall Name Name/PasswordLogin Security Web Management Settings Advanced Management Enable SnmpFour addresses or host names can be used Click OK Enable Management Using SonicWALL GMS Using System Administration System Time Setting System TimeSet Time System Time Setting the SonicWALL Security Appliance Time NTP Settings System Settings Configuring System SettingsSettings Import Settings Click Export Settings Export SettingsFirmware Management New Firmware System Information SafeMode Rebooting the SonicWALL Security ApplianceFirmware Management Settings Firmware Management System Diagnostics System Diagnostics Generating a Tech Support Report Tech Support Report Active Connections Monitor Diagnostic ToolsActive Connections Monitor Settings DNS Name Lookup CPU Monitor Packet Trace Find Network Path Select Packet Trace from the Diagnostic tool menu Process Monitor Reverse Name ResolutionPing System Restart Network Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide Network Settings Configuring Network SettingsNetwork Settings Interfaces Setup Wizard Interface Options by SonicWALL Security Appliance DNS Settings Configuring Transparent Mode Configuring the WAN Interface Configuring the WAN Interface Configuration Example Configuring NAT with Dhcp Client Configuring NAT Enabled Configuring NAT with L2TP Client Configuring NAT with PPPoE Client Configuring Ethernet Settings in WAN Properties Configuring NAT with Pptp Client Configuring the WAN Interface Configuring Multiple LAN Subnets Configuring the LAN InterfaceBasic LAN Configuration Configuring the OPT Interface Configuring the OPT InterfaceConfiguring Ethernet Settings Configuring Transparent Mode Configuring NAT Mode Configuring the DMZ InterfaceConfiguring the DMZ Interface Select OPT in NAT Mode Configuring Transparent Mode Select DMZ in NAT Mode Configuring the Modem Interface TZ 170 SPConfiguring the Modem Interface TZ 170 SP Profiles Modem Settings Failover Select Enable WAN Failover Activating the Modem Advanced Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide Sonicwall Sonicos Standard 3.0 ADMINISTRATOR’S Guide Select the Enable One-to-One NAT check box Configuring One-to-One NATNetwork One-to-One NAT Network One-to-One NAT Click Firewall, then Access Rules One-to-One NAT Configuration ExampleSelect Enable One-to-One NAT Allow Service Http Source WAN Configuring One-to-One NAT Network Web Proxy Configuring Web Proxy SettingsNetwork Web Proxy Forward OPT/DMZ/WLAN Client Requests to Proxy Server Configuring Automatic Web Proxy ForwardingBypass Proxy Servers Upon Proxy Failure Network Intranet Configuring Intranet SettingsNetwork Intranet Intranet Settings InstallationSpecified address ranges are attached to the LAN link Specified address ranges are attached to the WAN link Network Routing Configuring Static RoutesNetwork Routing Static Routes Static Route Configuration ExampleKey terms SonicWALL LAN IP Address Route Advertisement Route Advertisement Configuration Routing Table Network ARP Configuring Address Resolution Protocol SettingsNetwork ARP Secondary Subnets with Static ARP Adding a Secondary Subnet using the Static ARP MethodStatic ARP Entries Network ARP Prohibit Dynamic ARP Entries Flushing the ARP Cache Navigating and Sorting the ARP Cache Table Configuring Address Resolution Protocol Settings Dhcp Server Settings Configuring the Dhcp ServerNetwork Dhcp Server Network Dhcp Server Dhcp Server Lease Scopes Configuring Dhcp Server for Dynamic Ranges 101 Configuring Static Dhcp Entries Current Dhcp Leases Network Dynamic DNS Configuring Dynamic DNSSupported Ddns Providers Network Dynamic DNS Additional Services offered by Dynamic DNS Providers 105 Configuring Dynamic DNS 106 107 Dynamic DNS Settings Table 108 109 Modem 110 Modem Status Viewing Modem StatusModem Status 111 Modem Status Modem Settings Configuring Modem SettingsModem Settings 113 Configuring Profile and Modem Settings Modem Failover Settings Configuring Modem FailoverModem Failover Modem Failover Configuring Modem Failover 117 Modem AdvancedModem Advanced Configuring Advanced Modem Settings Modem Dialup Profiles Configuring Modem Dialup PropertiesDial-Up Profiles Modem Dialup Profiles Configuring a Dialup Profile Modem Dialup Profiles Modem Profile Configuration 121 Modem Dialup Profiles Modem Profile Configuration 122 123 Chat Scripts Custom Chat Scripts 125 Wireless 126 127 LAN WAN Considerations for Using Wireless Connections Wireless Guest Services WGS Optimal Wireless Performance RecommendationsOptimal Wireless Performance Recommendations 129 MAC Filter List Wireless Node Count EnforcementWiFiSec Enforcement Welcome to the SonicWALL Wireless Configuration Wizard Using the Wireless WizardWlan Network Settings Using the Wireless Wizard Wlan Security Settings Wlan 802.11b Settings 133 WiFiSec VPN Client User AuthenticationWireless Guest Services Updating the TZ 50 Wireless/TZ 150 Wireless/TZ 170 Wireless Wireless Configuration Summary Configuring Additional Wireless Features Wireless StatusWireless Status 135 Access Point Status Wlan Settings 137 Wlan StatisticsStation Status 138 Wireless Settings Configuring Wireless SettingsWireless Radio Mode Wireless Settings Wireless Settings 141 Secure Wireless Bridging TZ 170 Only Configuring a Secure Wireless Bridge 143 Network Settings for the Example NetworkWireless Bridging without WiFiSec Select LAN for VPN Terminated at Advanced Configuration for both VPN Policies 145 Wireless Bridge VPN Policy 146 Wireless WEP/WPA Encryption Configuring WEP and WPA EncryptionWireless WEP/WPA Encryption 147 WEP Encryption Keys WEP Encryption SettingsWPA Encryption Settings 149 WPA-PSK SettingsWPA-EAP Settings WPA Settings Wireless Advanced Wireless AdvancedBeaconing & Ssid Controls 151 Configurable Antenna Diversity TZ 170 Wireless Wireless Client CommunicationsAdvanced Radio Settings 153 154 Wireless MAC Filter List Configuring the MAC Filter ListWireless MAC Filter List 155 156 Wireless IDS Configuring Wireless IDSWireless Bridge IDS Wireless IDS Enable Client Null Probing Access Point IDSRogue Access Point Detection Association Flood Detection 159 Authorizing Access Points on Your Network 160 161 Wireless Guest Services 162 163 WGS StatusWGS Status Viewing Wireless Guest Services Status WGS Settings Configuring Wireless Guest ServicesWGS Settings 165 Bypass Filters for Guest Accounts Bypass Guest AuthenticationEnable Dynamic Address Translation DAT Enable URL Allow List for Authenticated Users Enable Smtp RedirectEnable IP Address Deny List for Authenticated Users 167 Check the Customize Login Page box Customize Login Maximum Concurrent Guests Custom Post Authentication RedirectWGS Account Profiles To add a profile Account Lifetime WGS Accounts Managing Wireless Guest AccountsWorking with Guest Accounts WGS Accounts Automatically Generating Guest Accounts Account Detail Printing Manually Configuring Wireless GuestsAccount Profile 173 Secure Access Point with Virtual Adapter Support Flexible Default Route 175 Secure Access Point with Wireless Guest Services 176 177 Firewall 178 Network Access Rules Overview Configuring Network Access RulesNetwork Access Rules Overview 179 Firewall Access Rules Using Bandwidth Management with Access Rules Adding Rules using the Network Access Rule Wizard Restoring Default Network Access RulesConfiguring 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 Rule Examples Blocking LAN Access for Specific ServicesEnabling Ping Select WAN from the Destination Ethernet menu 188 Access Rules Advanced Configuring Advanced Rule OptionsWindows Networking NetBIOS Broadcast Pass Through Access Rules Advanced Access Rule Service Options TCP Connection Inactivity TimeoutDetection Prevention Source Routed Packets Firewall Services Configuring Custom ServicesUser Defined Custom Services Firewall Services Predefined Services Firewall VoIP Configuring VoIPVoIP Protocols Firewall VoIP SIP 323 SIP Settings Configuring the VoIP SettingsSettings 195 196 Firewall Connections Monitor Monitoring Active Firewall ConnectionsFirewall Connections Monitor 197 Using Group Filters Setting Filter LogicClick Apply Filters Source IP Priority && Category && Source && Destination 199 VPN 200 SonicWALL VPN Options Overview Configuring VPN SettingsSonicWALL VPN Options Overview 201 VPN Policies VPN SettingsVPN Global Settings 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 Site a VPN Planning Sheet for Site-to-Site VPN PoliciesRouter Additional Information 215 Creating a Typical IKE Preshared Secret VPN Policy 217 Creating a Custom VPN Policy IKE with Preshared Secret Creating a Manual Key VPN Policy with the VPN Policy Wizard 219 220 221 Configuring a VPN Policy IKE with Preshared SecretTip The Shared Secret must be a minimum of four characters 222 223 Select Manual Key from the IPSec Keying Mode menu Configuring a VPN Policy using Manual Key 225 Configuring a VPN Policy with IKE 3rd Party CertificateGeneral tab, select IKE using 3rd Party Certificates 226 227 228 Advanced VPN Settings Configuring Advanced VPN SettingsVPN Advanced VPN Advanced VPN User Authentication Settings 231 Select Enable VPN Bandwidth ManagementVPN Bandwidth Management Configuring Advanced VPN Settings Dhcp Relay Mode Configuring Dhcp Over VPNVPN Dhcp over VPN VPN Dhcp over VPN Configuring the Central Gateway for Dhcp Over VPN 235 Configuring Dhcp over VPN Remote Gateway Current Dhcp over VPN Leases Device ConfigurationClick OK to exit the Dhcp over VPN Configuration window VPN L2TP Server Configuring L2TP Server SettingsVPN L2TP Server 237 Adding L2TP Clients to the SonicWALL L2TP Server SettingsIP Address Settings 239 Currently Active L2TP Sessions Configuring L2TP Server Settings Digital Certificates Overview Managing CertificatesSonicWALL Third-Party Digital Certificate Support Digital Certificates Overview Certificate Details VPN Local CertificatesImporting Certificate with Private Key Delete This Certificate Generating a Certificate Signing RequestVPN Local Certificates Select Add New Local Certificate from the Certificates menu Select Add New CA Certificate VPN CA CertificatesImporting CA Certificates into the SonicWALL Certificate Revocation List CRL Automatic CRL UpdateImporting a CRL List Click Browse for Please select a file to import 246 247 Users 248 User Level Authentication Overview User Level Authentication OverviewUsers Status 249 Active User Sessions Users SettingsAuthentication Method Internet Authentication Exclusions Global User SettingsUsers Settings 251 Acceptable Use Policy 253 Configuring Radius AuthenticationSelect Use Radius for user authentication 254 255 256 Users Local Users Configuring Local UsersUsers Local Users 257 Adding a Local User 259 Security Services 260 SonicWALL Security Services SonicWALL Security Services Activating Free Trials MySonicWALL.com Security Services Summary Manage Licenses Security Services SummarySecurity Services Summary 263 If Your SonicWALL Security Appliance is Not Registered Security Services SettingsSecurity Services Information 265 SonicWALL Content Filtering ServiceSonicWALL Content Filtering Service Activating SonicWALL Content Filtering Service Security Services Content FilterContent Filter Status 267 Activating a SonicWALL Content Filtering ServiceSecurity Services Content Filter Restrict Web Features Content Filter Type Message to Display when Blocking Configuring SonicWALL Filter PropertiesConfiguring SonicWALL Filter Properties Trusted Domains Keyword Blocking Custom ListAllowed/Forbidden Domains 271 Disable all Web traffic except for Allowed Domains Consent Consent Page URL mandatory filtering Mandatory Filtered IP AddressesAdding a New Address 273 274 275 SonicWALL Network Anti-Virus OverviewSonicWALL Network Anti-Virus Overview Activating SonicWALL Network Anti-Virus Security Services Anti-Virus 277 Security Services Anti-VirusActivating a SonicWALL Network Anti-Virus Free Trial Configuring SonicWALL Network Anti-Virus Security Services E-Mail Filter SonicWALL Gateway Anti-Virus Overview Managing SonicWALL Gateway Anti-Virus ServiceSonicWALL Gateway Anti-Virus Overview 279 SonicWALL Gateway Anti-Virus/Intrusion Prevention Features 281 Activating SonicWALL Gateway Anti-Virus Activating the SonicWALL Gateway Anti-Virus Activating SonicWALL Gateway Anti-Virus 283 Configuring SonicWALL Gateway Anti-VirusConfiguring SonicWALL Gateway Anti-Virus 284 SonicWALL Intrusion Prevention Service Managing SonicWALL Intrusion Prevention ServiceSonicWALL IPS Features SonicWALL Intrusion Prevention Service SonicWALL Deep Packet Inspection 287 How SonicWALL’s Deep Packet Inspection Architecture Works Activating SonicWALL IPS Security Services Intrusion Prevention 289 Security Services Intrusion PreventionActivating the SonicWALL IPS Free Trial 290 SonicWALL Global Security Client Managing SonicWALL Global Security ClientSonicWALL Global Security Client 291 SonicWALL Global Security Client Activation Global Security Client FeaturesHow SonicWALL Global Security Client Works 293 Activating SonicWALL Global Security Client 294 295 Log 296 SonicOS Log Event Messages Overview Viewing Log EventsSonicOS Log Event Messages Overview 297 Navigating and Sorting Log View Table Entries Log View Refresh SonicOS Log EntriesClear Log Mail Log 300 Log Categories Specifying Log CategoriesLog Categories Alerts & Snmp Traps Log Automation Configuring Log AutomationLog Automation 303 Syslog Servers Mail 305 306 Log Name Resolution Configuring Name ResolutionLog Name Resolution 307 Specifying the DNS Server Selecting Name Resolution SettingsName Resolution Method list, select Generating and Viewing Log Reports Reset DataLog Reports Data Collection View Data Bandwidth Usage by ServiceWeb Site Hits Bandwidth Usage by IP Address SonicWALL ViewPoint Log ViewPointLog ViewPoint 311 Generating and Viewing Log Reports 313 SonicSetupSonicSetup Device Selection Introduction and Discovery 315 DiagnosticsDiagnostics Diagnostic Results SonicROM Recovery 317 SonicOS RecoverySonicOS Recovery Restoring Factory Defaults 319 Address SynchronizationAddress Synchronization 320 321 SonicWALL SafeModeSonicWALL SafeMode 322 323 Upgrading SonicOS FirmwareUpgrading SonicOS Firmware 324 Numerics Index 326 327 VPN WPA, see WiFiSec Protected Access 232- 000609- 00 Rev E 02/05