Serving two subnets on same VLAN

Norman Elton normelton at
Sat Sep 24 19:53:30 UTC 2011

Assume that a router is configured with three interfaces: (primary interface) (secondary interface) (secondary interface)

The router is configured to be a DHCP relay; however, only sends
requests from its primary interface ( Therefore, the DHCP
server only responds with addresses from that pool. However, clients
can access the network via either of the secondary interfaces if they
had a proper address.

Is there a way to configure the DHCP server to recognize that requests
relayed by can be fulfilled by IP address from all three

Hope this makes sense, thanks!


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