R3166-R3206-HP High-End Firewalls Network Management Configuration Guide-6PW101

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2. If a ping response is received, the IP address has been manually configured on a host. Execute the
dhcp server forbidden-ip command on the DHCP server to exclude the IP address from dynamic
allocation.
Enable the network adapter or connect the network cable. Release the IP address and obtain another
one on the client. Take WINDOW XP as an example, run cmd to enter DOS window. Type
ipconfig/release to relinquish the IP address and then ipconfig/renew to obtain another IP address.