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Overwriting giaddr Information

You can configure the DHCP relay agent to change the gateway IP address (giaddr) field in packets that it forwards between a DHCP client and a DHCP server.

To overwrite the giaddr of every DHCP packet with the giaddr of the DHCP relay agent before forwarding the packet to the DHCP server:

  1. Specify that you want to configure override options.
    [edit forwarding-options dhcp-relay]user@host# edit overrides
  2. Specify that the giaddr of DHCP packets is overwritten.
    [edit forwarding-options dhcp-relay overrides]user@host# set always-write-giaddr

Published: 2010-04-15

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