This is a total pain with Windows IAS. What I did as a work-around was add all of the IP addresses a router could use to the IAS server's local hosts file. Each IP has the same name (allcisco in my case). IAS is happy with it.
I've been installing kiwi at various places. There is a free version and for a few $$ a very functional/highly configurable version. See http://www.kiwisyslog.com/index.htm
I would add a route statement to the 100.6 router pointing to the firewall (ip route 0.0.0.0 0.0.0.0 192.l68.100.13) and then make sure the 100.6 router can send ICMP redirects.Or, do a similar thing with your firewall (add a route to Bloomberg), ass...
NAT and PAT currently is Relevant. It is true, that the limitation is currently the PIX not supporting the client's NAT feature. But, I have found the client works fine behind a PIX 5xx running older software and newer software. You have to enable...