I have a requirement, wherein I have two NICs on a single host. One of
the NIC would be in a standby state. The idea is to provide
hotstandby, in case the first NIC fails the second NIC takes over.
Both the NICs are configured for DHCP IP and as far as I know, the
DHCP Server binds the IP with the MAC Address provided.
In my case I need to get the same IP for both the NICs despite them
having different MAC Addresses, basically because the host is the same
and much of the host configuration is tied up with the IP. I checkced
the DHCP server man pages, it states the IP can also be bound to a
So, to make sure I get the same IP both these NICs, should I set the
"client Id" like a host name and send the DHCP Discover message?
Please advice if there is some kind of configuration needs to be done
on the server side too?