Are there any problems that would prohibit a Unity Client to start connections to hosts on the pix inside and pix dmz networks at the same time?
Can you provide a link that describes the PIX side of the configuration for access to both networks not just the inside network?
Whoops, yep sorry, brain fade on my part, disregard my first email. Your configuration would look like this:
ip address inside 10.1.1.1 255.255.255.0
ip address dmz 172.16.1.1 255.255.255.0
ip local pool vpnpool 192.168.1.1-192.168.1.254
nat (inside) 0 access-list nonatinside
nat (dmz) 0 access-list nonatdmz
access-list nonatinside permit ip 10.1.1.0 255.255.255.0 192.168.1.0 255.255.255.0
access-list nonatdmz permit ip 172.16.1.0 255.255.255.0 192.168.1.0 255.255.255.0
Hope that helps.