3Com Router 3000 Ethernet FamilyConfiguration Guide Chapter 9 DHCP Configuration3Com Corporation9-28Table 9-28 Configure egress gateway router for DHCP clientOperation CommandConfigures egress gateway routerfor DHCP client gateway-list ip-address [ ip-address ]Deletes the egress gateway router undo gateway-list { ip-address | all }By default, no egress gateway router is configured to DHCP client.A maximum of eight egress gateway addresses currently can be configured in a DHCP.Note:To configure multiple egress gateway addresses, give out the ip-address parameterone by one.9.5.12 Configuring ping Packet Transfer in DHCP ServerTo prevent IP address conflict, DHCP server will check whether an address has beenallocated before allocating it to the client.You can initiate IP address check with the command ping. If no response is sent back,then continue to send ping packets till the maximum ping packets allowed are sent. Ifthere is still no response sent back with the preset time limit, then you can conclude thatthis IP address is free. This ensures the client a unique IP address.Perform the following configurations in the system view.Table 9-29 Configure ping packet transfer in DHCP serverOperation CommandConfigures maximum number of pingpacket for transfer in DHCP server dhcp server ping packets numberResets the maximum number of pingpacket to the default value undo dhcp server ping packetsConfigures time limit to receive pingresponse dhcp server ping timeout millisecondsResets time limit to receive pingresponse to the default value undo dhcp server ping timeoutBy default, two ping packets can be transferred and 500 milliseconds are set for DHCPserver to receive ping response.
