HP 5920 Series Configuration Manual page 5

DHCP relay agent configuration task list ····················································································································· 49
Enabling DHCP ······························································································································································ 50
Enabling the DHCP relay agent on an interface ········································································································ 50
Specifying DHCP servers on a relay agent ················································································································· 50
Configuring the DHCP relay agent security functions ································································································ 51
Enabling the DHCP relay agent to record relay entries ···················································································· 51
Enabling periodic refresh of dynamic relay entries ··························································································· 51
Enabling DHCP starvation attack protection ······································································································ 52
Configuring the DHCP relay agent to release an IP address ···················································································· 52
Configuring Option 82 ················································································································································· 53
Displaying and maintaining the DHCP relay agent ··································································································· 53
DHCP relay agent configuration examples ················································································································· 54
DHCP relay agent configuration example ·········································································································· 54
Option 82 configuration example ······················································································································· 55
Troubleshooting DHCP relay agent configuration ······································································································ 55
Symptom ································································································································································· 55
Analysis ·································································································································································· 55
Solution ··································································································································································· 56
Configuring the DHCP client ····································································································································· 57
Enabling the DHCP client on an interface ··················································································································· 57
Configuring a DHCP client ID for an interface ··········································································································· 57
Enabling duplicated address detection ······················································································································· 58
Displaying and maintaining the DHCP client ·············································································································· 58
DHCP client configuration example ····························································································································· 58
Network requirements ··········································································································································· 58
Configuration procedure ······································································································································ 59
Verifying the configuration ··································································································································· 60
Configuring DHCP snooping ····································································································································· 61
Overview ········································································································································································· 61
Application of trusted and untrusted ports ·········································································································· 61
DHCP snooping support for Option 82 ·············································································································· 62
DHCP snooping configuration task list ························································································································ 63
Configuring basic DHCP snooping ······························································································································ 63
Configuring Option 82 ················································································································································· 64
Saving DHCP snooping entries ···································································································································· 65
Enabling DHCP starvation attack protection ··············································································································· 66
Enabling DHCP-REQUEST attack protection ··············································································································· 66
Configuring DHCP packet rate limit ····························································································································· 67
Displaying and maintaining DHCP snooping ············································································································· 67
DHCP snooping configuration examples ····················································································································· 68
Basic DHCP snooping configuration example ··································································································· 68
Option 82 configuration example ······················································································································· 69
Configuring the BOOTP client ··································································································································· 71
BOOTP application ························································································································································ 71
Obtaining an IP address dynamically ························································································································· 71
Protocols and standards ················································································································································ 71
Configuring an interface to use BOOTP for IP address acquisition·········································································· 71
Displaying and maintaining BOOTP client ················································································································· 72
BOOTP client configuration example ·························································································································· 72
Network requirements ··········································································································································· 72
Configuration procedure ······································································································································ 72
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