H3C MSR 2600 Configuration Manual page 10

Displaying and maintaining DHCP snooping ············································································································· 75
DHCP snooping configuration examples ····················································································································· 76
Basic DHCP snooping configuration example ··································································································· 76
Option 82 configuration example ······················································································································· 77
Configuring the BOOTP client ··································································································································· 79
BOOTP application ························································································································································ 79
Obtaining an IP address dynamically ························································································································· 79
Protocols and standards ················································································································································ 79
Configuring an interface to use BOOTP for IP address acquisition·········································································· 80
Displaying and maintaining BOOTP client ················································································································· 80
BOOTP client configuration example ·························································································································· 80
Network requirements ··········································································································································· 80
Configuration procedure ······································································································································ 80
Configuring DNS ······················································································································································· 81
Overview ········································································································································································· 81
Static domain name resolution ····························································································································· 81
Dynamic domain name resolution ······················································································································· 81
DNS proxy ····························································································································································· 82
DNS spoofing ························································································································································ 83
DNS configuration task list ············································································································································ 84
Configuring the IPv4 DNS client ·································································································································· 85
Configuring static domain name resolution ········································································································ 85
Configuring dynamic domain name resolution ·································································································· 85
Configuring the IPv6 DNS client ·································································································································· 86
Configuring static domain name resolution ········································································································ 86
Configuring dynamic domain name resolution ·································································································· 87
Configuring the DNS proxy ·········································································································································· 87
Configuring DNS spoofing ··········································································································································· 88
Specifying the source interface for DNS packets ······································································································· 88
Configuring the DNS trusted interface ························································································································· 89
Specifying the DSCP value for outgoing DNS packets ······························································································ 90
Displaying and maintaining IPv4 DNS ························································································································ 90
IPv4 DNS configuration examples ······························································································································· 90
Static domain name resolution configuration example ····················································································· 90
Dynamic domain name resolution configuration example ··············································································· 91
DNS proxy configuration example ······················································································································ 94
IPv6 DNS configuration examples ······························································································································· 96
Static domain name resolution configuration example ····················································································· 96
Dynamic domain name resolution configuration example ··············································································· 96
DNS proxy configuration example ···················································································································· 101
Troubleshooting IPv4 DNS configuration ·················································································································· 102
Symptom ······························································································································································· 102
Solution ································································································································································· 102
Troubleshooting IPv6 DNS configuration ·················································································································· 102
Symptom ······························································································································································· 102
Solution ································································································································································· 102
Configuring DDNS ·················································································································································· 104
Overview ······································································································································································· 104
DDNS application ··············································································································································· 104
DDNS client configuration task list ····························································································································· 105
Configuring a DDNS policy ········································································································································ 105
Configuration prerequisites ································································································································ 106
Configuration procedure ···································································································································· 106
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