HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Services Command Referen - Page 78

Parameters drop: Drops messages containing Option 82. keep: Keeps the original Option 82 intact. replace: Replaces the original Option 82 with the configured Option 82. Usage guidelines This command takes effect only for DHCP requests containing Option 82. When enabled to support Option 82, the DHCP relay agent always adds Option 82 into DHCP requests that do not contain Option 82 before forwarding the requests to the DHCP server. Examples # Configure the handling strategy for Option 82 as keep. system-view [Sysname] interface vlan-interface 10 [Sysname-Vlan-interface10] dhcp relay information enable [Sysname-Vlan-interface10] dhcp relay information strategy keep Related commands • dhcp relay information enable • display dhcp relay information dhcp relay release ip Use dhcp relay release ip to release the specified client IP address. Syntax dhcp relay release ip client-ip [ vpn-instance vpn-instance-name ] Views System view Predefined user roles network-admin Parameters client-ip: Specifies the IP address to be released. vpn-instance vpn-instance-name: Specifies the MPLS L3VPN instance of the IP address. The vpn-instance-name is a case-sensitive string of 1 to 31 characters. If you do not specify any VPN instance, this command releases the IP address in the public network. Usage guidelines After you execute this command, the relay agent sends a DHCP-RELEASE packet to the DHCP server and removes the relay entry of the IP address. Upon receiving the packet, the server removes binding information for the specified IP address to release the IP address. Examples # Release the IP address 1.1.1.1. system-view [Sysname] dhcp relay release ip 1.1.1.1 70