HP 5920 Series Configuration Manual page 6

Configuring DNS ······················································································································································· 73
Overview ········································································································································································· 73
Static domain name resolution ····························································································································· 73
Dynamic domain name resolution ······················································································································· 73
DNS proxy ····························································································································································· 74
DNS spoofing ························································································································································ 75
DNS configuration task list ············································································································································ 76
Configuring the IPv4 DNS client ·································································································································· 76
Configuring static domain name resolution ········································································································ 76
Configuring dynamic domain name resolution ·································································································· 77
Configuring the IPv6 DNS client ·································································································································· 77
Configuring static domain name resolution ········································································································ 77
Configuring dynamic domain name resolution ·································································································· 78
Configuring the DNS proxy ·········································································································································· 79
Configuring DNS spoofing ··········································································································································· 79
Specifying the source interface for DNS packets ······································································································· 80
Configuring the DNS trusted interface ················································································································ 80
Displaying and maintaining IPv4 DNS ························································································································ 81
IPv4 DNS configuration examples ······························································································································· 81
Static domain name resolution configuration example ····················································································· 81
Dynamic domain name resolution configuration example ··············································································· 82
DNS proxy configuration example ······················································································································ 84
IPv6 DNS configuration examples ······························································································································· 86
Static domain name resolution configuration example ····················································································· 86
Dynamic domain name resolution configuration example ··············································································· 86
DNS proxy configuration example ······················································································································ 91
Troubleshooting IPv4 DNS configuration ···················································································································· 92
Symptom ································································································································································· 92
Solution ··································································································································································· 92
Troubleshooting IPv6 DNS configuration ···················································································································· 92
Symptom ································································································································································· 92
Solution ··································································································································································· 92
Configuring DDNS ····················································································································································· 93
Overview ········································································································································································· 93
DDNS application ················································································································································· 93
DDNS client configuration task list ······························································································································· 94
Configuring a DDNS policy ·········································································································································· 94
Configuration prerequisites ·································································································································· 95
Configuration procedure ······································································································································ 95
Applying the DDNS policy to an interface ·················································································································· 96
Displaying DDNS ··························································································································································· 97
DDNS configuration examples ····································································································································· 97
DDNS configuration example 1 ·························································································································· 97
DDNS configuration example 2 ·························································································································· 98
Basic IP forwarding on the device ························································································································· 100
FIB table ········································································································································································ 100
Displaying FIB table entries ········································································································································· 100
Optimizing IP performance ···································································································································· 102
Enabling an interface to receive and forward directed broadcasts destined for the directly connected network
······················································································································································································· 102
Configuration procedure ···································································································································· 102
Configuration example ······································································································································· 102
Configuring MTU for an interface ······························································································································ 103
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