To close the loop here, I was able to confirm with Forti support that
there is not an alternative way to do DHCP relay for dial up tunnel
clients outside of mode-cfg.
Thanks for such a prompt response, I didn't have a lot of hope replying
to a 2 year old message haha. Unfortunately I think our goals are a bit
different...Option 12 is just a way for the client to embed it's
hostname in the DHCP request and isn't ve...
Did this actually solve your problem with DNS though? In my experience
when mode-config is set to do dhcp-relay, the firewall creates the
request rather than the client. The request the firewall sends to the
DHCP server does not include Option 12 - H...
