HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Services Configuration G - Page 5

Option 82 configuration example, Symptom, iii

Page 5 highlights

DHCP relay agent support for Option 82 51 DHCP relay agent configuration task list 51 Enabling DHCP 52 Enabling the DHCP relay agent on an interface 52 Specifying DHCP servers on a relay agent 52 Configuring the DHCP relay agent security functions 53 Enabling the DHCP relay agent to record relay entries 53 Enabling periodic refresh of dynamic relay entries 53 Enabling DHCP starvation attack protection 54 Configuring the DHCP relay agent to release an IP address 55 Configuring Option 82 55 Displaying and maintaining the DHCP relay agent 56 DHCP relay agent configuration examples 56 DHCP relay agent configuration example 56 Option 82 configuration example 57 Troubleshooting DHCP relay agent configuration 58 Symptom 58 Analysis 58 Solution 58 Configuring the DHCP client 59 Enabling the DHCP client on an interface 59 Configuring a DHCP client ID for an interface 60 Enabling duplicated address detection 60 Displaying and maintaining the DHCP client 61 DHCP client configuration example 61 Network requirements 61 Configuration procedure 61 Verifying the configuration 62 Configuring DHCP snooping 64 Overview 64 Application of trusted and untrusted ports 64 DHCP snooping support for Option 82 65 DHCP snooping configuration task list 66 Configuring basic DHCP snooping 66 Configuring Option 82 67 Saving DHCP snooping entries 68 Enabling DHCP starvation attack protection 69 Enabling DHCP-REQUEST attack protection 69 Configuring DHCP packet rate limit 70 Displaying and maintaining DHCP snooping 70 DHCP snooping configuration examples 71 Basic DHCP snooping configuration example 71 Option 82 configuration example 72 Configuring the BOOTP client 74 BOOTP application 74 Obtaining an IP address dynamically 74 Protocols and standards 74 Configuring an interface to use BOOTP for IP address acquisition 75 Displaying and maintaining BOOTP client 75 BOOTP client configuration example 75 Network requirements 75 Configuration procedure 75 iii

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iii
DHCP relay agent support for Option 82 ·········································································································· 51
DHCP relay agent configuration task list ····················································································································· 51
Enabling DHCP ······························································································································································ 52
Enabling the DHCP relay agent on an interface ········································································································ 52
Specifying DHCP servers on a relay agent ················································································································· 52
Configuring the DHCP relay agent security functions ································································································ 53
Enabling the DHCP relay agent to record relay entries ···················································································· 53
Enabling periodic refresh of dynamic relay entries ··························································································· 53
Enabling DHCP starvation attack protection ······································································································ 54
Configuring the DHCP relay agent to release an IP address ···················································································· 55
Configuring Option 82 ················································································································································· 55
Displaying and maintaining the DHCP relay agent ··································································································· 56
DHCP relay agent configuration examples ················································································································· 56
DHCP relay agent configuration example ·········································································································· 56
Option 82 configuration example
······················································································································· 57
Troubleshooting DHCP relay agent configuration ······································································································ 58
Symptom
································································································································································· 58
Analysis ·································································································································································· 58
Solution ··································································································································································· 58
Configuring the DHCP client ····································································································································· 59
Enabling the DHCP client on an interface ··················································································································· 59
Configuring a DHCP client ID for an interface ··········································································································· 60
Enabling duplicated address detection ······················································································································· 60
Displaying and maintaining the DHCP client·············································································································· 61
DHCP client configuration example ····························································································································· 61
Network requirements··········································································································································· 61
Configuration procedure ······································································································································ 61
Verifying the configuration ··································································································································· 62
Configuring DHCP snooping····································································································································· 64
Overview········································································································································································· 64
Application of trusted and untrusted ports ·········································································································· 64
DHCP snooping support for Option 82 ·············································································································· 65
DHCP snooping configuration task list ························································································································ 66
Configuring basic DHCP snooping ······························································································································ 66
Configuring Option 82 ················································································································································· 67
Saving DHCP snooping entries ···································································································································· 68
Enabling DHCP starvation attack protection ··············································································································· 69
Enabling DHCP-REQUEST attack protection ··············································································································· 69
Configuring DHCP packet rate limit····························································································································· 70
Displaying and maintaining DHCP snooping ············································································································· 70
DHCP snooping configuration examples····················································································································· 71
Basic DHCP snooping configuration example ··································································································· 71
Option 82 configuration example
······················································································································· 72
Configuring the BOOTP client··································································································································· 74
BOOTP application ························································································································································ 74
Obtaining an IP address dynamically ························································································································· 74
Protocols and standards ················································································································································ 74
Configuring an interface to use BOOTP for IP address acquisition·········································································· 75
Displaying and maintaining BOOTP client ················································································································· 75
BOOTP client configuration example ·························································································································· 75
Network requirements··········································································································································· 75
Configuration procedure ······································································································································ 75