Hi Tim,

you may want to test the free available ISC DHCP-Server. It uses a state
exchange protocol to keep primary and backup dhcp server up to date.

Whenever the primary fails the backup will continue to serve your
clients until the primary comes back.

Tim Bradshaw wrote:
> [This isn't strictly a Solaris admin question, sorry.]
>
> We're using Sun's DHCP server to provide config to a bunch of Windows

I'm not shure whether Sun's DHCP server may also run in primary/backup
mode. We are using the ISC implementation on our Suns. You can compile
the source with gcc or Sun's CC.

http://www.isc.org

> The question is: do I need to worry about keeping the DHCP tables
> coherent between the boxes (bearing in mind that this is *not* an HA
> environment)?

Configure a primary and a backup server. On your routers configure both
server ip addresses as "ip helper" (cisco IOS).

>
> But perhaps I am confused about things...
>
> --tim
>

Regards
CB