2-32[Sysname-radius-123] primary accounting 10.1.2.2[Sysname] domain 123[Sysname-isp-123] scheme radius-scheme 123[Sysname-isp-123] quit# Create an address pool on the DHCP server.[Sysname] dhcp server ip-pool test[Sysname-dhcp-pool-test] network 10.1.1.0 mask 255.255.255.0# Enable DHCP accounting.[Sysname-dhcp-pool-test] accounting domain 123Troubleshooting a DHCP ServerSymptomThe IP address dynamically assigned by a DHCP server to a client conflicts with the IP address ofanother host.AnalysisWith DHCP enabled, IP address conflicts are usually caused by IP addresses that are manuallyconfigured on hosts.Solutionz Disconnect the DHCP client from the network and then check whether there is a host using theconflicting IP address by performing ping operation on another host on the network, with theconflicting IP address as the destination and an enough timeout time.z The IP address is manually configured on a host if you receive a response packet of the pingoperation. You can then disable the IP address from being dynamically assigned by using the dhcpserver forbidden-ip command on the DHCP server.z Attach the DHCP client to the network, release the dynamically assigned IP address and obtain anIP address again. For example, enter DOS by executing the cmd command in Windows XP, andthen release the IP address by executing the ipconfig/release command. Then obtain an IPaddress again by executing the ipconfig/renew command.
