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Configuring an interface to use BOOTP for IP address acquisition·········································································· 81
Displaying and maintaining BOOTP client ················································································································· 81
BOOTP client configuration example ·························································································································· 81
Network requirements ··········································································································································· 81
Configuration procedure ······································································································································ 81
Verifying the configuration ··································································································································· 81
Configuring DNS ······················································································································································· 83
Overview ········································································································································································· 83
Static domain name resolution ····························································································································· 83
Dynamic domain name resolution ······················································································································· 83
DNS proxy ····························································································································································· 84
DNS spoofing ························································································································································ 85
DNS configuration task list ············································································································································ 86
Configuring the IPv4 DNS client ·································································································································· 87
Configuring static domain name resolution ········································································································ 87
Configuring dynamic domain name resolution ·································································································· 87
Configuring the IPv6 DNS client ·································································································································· 88
Configuring static domain name resolution ········································································································ 88
Configuring dynamic domain name resolution ·································································································· 89
Configuring the DNS proxy ·········································································································································· 90
Configuring DNS spoofing ··········································································································································· 90
Specifying the source interface for DNS packets ······································································································· 91
Configuring the DNS trusted interface ························································································································· 91
Setting the DSCP value for outgoing DNS packets ···································································································· 92
Displaying and maintaining IPv4 DNS ························································································································ 92
IPv4 DNS configuration examples ······························································································································· 93
Static domain name resolution configuration example ····················································································· 93
Dynamic domain name resolution configuration example ··············································································· 93
DNS proxy configuration example ······················································································································ 96
IPv6 DNS configuration examples ······························································································································· 98
Static domain name resolution configuration example ····················································································· 98
Dynamic domain name resolution configuration example ··············································································· 98
DNS proxy configuration example ···················································································································· 103
Troubleshooting IPv4 DNS configuration ·················································································································· 104
Symptom ······························································································································································· 104
Solution ································································································································································· 104
Troubleshooting IPv6 DNS configuration ·················································································································· 104
Configuring DDNS ·················································································································································· 106
Overview ······································································································································································· 106
DDNS application ··············································································································································· 106
DDNS client configuration task list ····························································································································· 107
Configuring a DDNS policy ········································································································································ 107
Configuration prerequisites ································································································································ 109
Configuration procedure ···································································································································· 109
Applying the DDNS policy to an interface ················································································································ 109
Setting the DSCP value for outgoing DDNS packets································································································ 110
Displaying DDNS ························································································································································· 110
DDNS configuration examples ··································································································································· 111
DDNS configuration example with www.3322.org ······················································································· 111
DDNS configuration example with PeanutHull server ····················································································· 112
