HP VPN Firewall Appliances Network Management Configuration Guide

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Configuring the DHCP relay agent ························································································································ 187
Overview ······································································································································································· 187
Fundamentals ······················································································································································· 187
DHCP relay agent support for Option 82 ········································································································ 188
Configuring the DHCP relay agent in the Web interface ························································································ 189
Recommended configuration procedure ··········································································································· 189
Enabling DHCP and configuring advanced parameters for the DHCP relay agent ···································· 189
Creating a DHCP server group ·························································································································· 191
Enabling the DHCP relay agent on an interface ······························································································ 192
Configuring and displaying clients' IP-to-MAC bindings ················································································ 192
DHCP relay agent configuration example ········································································································ 193
Configuring the DHCP relay agent at the CLI ··········································································································· 196
DHCP relay agent configuration task list ·········································································································· 196
Configuring the DHCP relay agent ···················································································································· 196
Displaying and maintaining the DHCP relay agent ························································································ 202
DHCP relay agent configuration example ········································································································ 202
DHCP relay agent Option 82 support configuration example ······································································· 203
Troubleshooting DHCP relay agent configuration ···································································································· 204
Symptom ······························································································································································· 204
Analysis ································································································································································ 204
Solution ································································································································································· 204
Configuring DHCP client ········································································································································ 205
Introduction to DHCP client ········································································································································· 205
Configuring the DHCP client in the Web interface ·································································································· 205
Configuring the DHCP client at the CLI ······················································································································ 205
Enabling the DHCP client on an interface ········································································································ 205
Displaying and maintaining the DHCP client ··································································································· 206
DHCP client configuration example ·················································································································· 206
Configuring BOOTP client ······································································································································ 209
BOOTP application ······················································································································································ 209
Obtaining an IP address dynamically ······················································································································· 209
Protocols and standards ·············································································································································· 209
Configuring the BOOTP client in the Web interface ································································································ 210
Configuring the BOOTP client at the CLI ··················································································································· 210
Configuring an interface to dynamically obtain an IP address through BOOTP ········································· 210
Displaying and maintaining BOOTP client ······································································································· 210
BOOTP client configuration example ················································································································ 210
Configuring IPv4 DNS ············································································································································ 212
Overview ······································································································································································· 212
Static domain name resolution ··························································································································· 212
Dynamic domain name resolution ····················································································································· 212
DNS proxy ··························································································································································· 213
DNS spoofing ······················································································································································ 214
Configuring IPv4 DNS in the Web interface ············································································································ 215
Recommended configuration procedure ··········································································································· 215
Configuring static name resolution entries········································································································ 216
Configuring dynamic domain name resolution ································································································ 217
Configuring DNS proxy ······································································································································ 217
Configuring DNS server addresses ··················································································································· 218
Configuring domain name suffixes ···················································································································· 218
Clearing dynamic domain name cache ··········································································································· 218
Dynamic domain name resolution configuration example ············································································· 219
Configuring IPv4 DNS at the CLI ································································································································ 223