HP 3600 v2 Series Configuration Manual page 6

DHCP snooping support for Option 82 ······················································································································· 76
DHCP snooping configuration task list ························································································································ 77
Configuring DHCP snooping basic functions ·············································································································· 77
Configuring DHCP snooping to support Option 82 ··································································································· 78
Configuring DHCP snooping entries backup ·············································································································· 80
Enabling DHCP starvation attack protection ··············································································································· 81
Enabling DHCP-REQUEST message attack protection ······························································································· 81
Displaying and maintaining DHCP snooping ············································································································· 82
DHCP snooping configuration examples ····················································································································· 82
DHCP snooping configuration example ············································································································· 82
DHCP snooping Option 82 support configuration example ············································································ 83
Configuring BOOTP client ········································································································································· 85
Overview ········································································································································································· 85
BOOTP application ··············································································································································· 85
Obtaining an IP address dynamically ················································································································· 85
Protocols and standards ······································································································································· 85
Configuration restrictions ·············································································································································· 85
Configuring an interface to dynamically obtain an IP address through BOOTP ···················································· 86
Displaying and maintaining BOOTP client configuration ·························································································· 86
BOOTP client configuration example ·························································································································· 86
Network requirements ··········································································································································· 86
Configuration procedure ······································································································································ 86
Configuring IPv4 DNS ··············································································································································· 87
Overview ········································································································································································· 87
Static domain name resolution ····························································································································· 87
Dynamic domain name resolution ······················································································································· 87
DNS proxy ····························································································································································· 88
DNS spoofing ························································································································································ 89
Configuring the IPv4 DNS client ·································································································································· 90
Configuring static domain name resolution ········································································································ 90
Configuring dynamic domain name resolution ·································································································· 90
Configuring the DNS proxy ·········································································································································· 91
Configuring DNS spoofing ··········································································································································· 92
Setting the DSCP value for DNS packets ····················································································································· 92
Specifying the source interface for DNS packets ······································································································· 92
Displaying and maintaining IPv4 DNS ························································································································ 93
Static domain name resolution configuration example ······························································································ 93
Network requirements ··········································································································································· 93
Configuration procedure ······································································································································ 94
Dynamic domain name resolution configuration example ························································································ 94
Network requirements ··········································································································································· 94
Configuration procedure ······································································································································ 95
Verifying the configuration ··································································································································· 97
DNS proxy configuration example ······························································································································ 97
Network requirements ··········································································································································· 97
Configuration procedure ······································································································································ 98
Verifying the configuration ··································································································································· 98
Troubleshooting IPv4 DNS configuration ···················································································································· 99
Symptom ································································································································································· 99
Solution ··································································································································································· 99
Configuring IRDP ····················································································································································· 100
Overview ······································································································································································· 100
Background ·························································································································································· 100
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