dhcpd and relayed responses from multi-interface Linux server

[sthaug at nethelp.no]

> At least on this platform, dhcpd does not respond correctly to *any* relayed message to a multi-interface DHCP server unless the messages are relayed to the interface that is the server host's default route out.

This is certainly not the case for *all* platforms that ISC DHCP runs
on. I don't have these problems with FreeBSD, for instance.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no