DHCP server failover behind relay
Simon Hobson
dhcp1 at thehobsons.co.uk
Wed Sep 5 20:10:17 UTC 2012
Vadym Abramchuk wrote:
>Failover setup for isc-dhcpd is a well-known, however, both server
>and clients MUST be in the same subnet
Wrong
>So build-in failover does not work for relays.
Wrong
You just need to configure your relay agents to forward to both
servers. This can either be by sending two unicast packets (add two
server addresses), or (I believe) if the network allows, sending one
directed broadcast.
--
Simon Hobson
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