iiiDisplaying and Maintaining DHCP Relay Agent Configuration ······························································6-9DHCP Relay Agent Configuration Examples··························································································6-9DHCP Relay Agent Configuration Example ····················································································6-9DHCP Relay Agent Option 82 Support Configuration Example····················································6-10Troubleshooting DHCP Relay Agent Configuration··············································································6-117 DHCP Client Configuration·······················································································································7-1Introduction to DHCP Client····················································································································7-1Enabling the DHCP Client on an Interface ·····························································································7-1Displaying and Maintaining the DHCP Client ·························································································7-2DHCP Client Configuration Example ······································································································7-28 DHCP Snooping Configuration ················································································································8-1DHCP Snooping Overview······················································································································8-1Function of DHCP Snooping ···········································································································8-1Application Environment of Trusted Ports ·······················································································8-2DHCP Snooping Support for Option 82···························································································8-3Configuring DHCP Snooping Basic Functions························································································8-4Configuring DHCP Snooping to Support Option 82················································································8-5Prerequisites····································································································································8-5Configuring DHCP Snooping to Support Option 82 ········································································8-5Displaying and Maintaining DHCP Snooping ·························································································8-7DHCP Snooping Configuration Examples ······························································································8-7DHCP Snooping Configuration Example·························································································8-7DHCP Snooping Option 82 Support Configuration Example ··························································8-89 BOOTP Client Configuration ····················································································································9-1Introduction to BOOTP Client ·················································································································9-1BOOTP Application ·························································································································9-1Obtaining an IP Address Dynamically ·····························································································9-2Protocols and Standards ·················································································································9-2Configuring an Interface to Dynamically Obtain an IP Address Through BOOTP ·································9-2Displaying and Maintaining BOOTP Client Configuration·······································································9-3BOOTP Client Configuration Example····································································································9-310 DNS Configuration·································································································································10-1DNS Overview·······································································································································10-1Static Domain Name Resolution ···································································································10-1Dynamic Domain Name Resolution ······························································································10-1DNS Proxy·····································································································································10-3Configuring the DNS Client···················································································································10-4Configuring Static Domain Name Resolution················································································10-4Configuring Dynamic Domain Name Resolution···········································································10-4Configuring the DNS Proxy···················································································································10-5Displaying and Maintaining DNS ··········································································································10-5DNS Configuration Examples ···············································································································10-5Static Domain Name Resolution Configuration Example······························································10-5Dynamic Domain Name Resolution Configuration Example·························································10-6DNS Proxy Configuration Example ·······························································································10-9Troubleshooting DNS Configuration ···································································································10-10
