Two servers, Two ADSL connections
Have two servers (SBS2003 with ISA and 2003 Terminal Server) One ADSL for internet connection and the other ADSL is a private link to remote offices.
This is how I have it setup:
Remote workstations 192.168.1.101 (gateway 192.168.1.1)
Private links remote ADSL 192.168.1.1
Private links head office ADSL 192.168.16.1 (no gateway)
/ \___ Terminal Server 192.168.16.3 (gateway 192.168.16.2)
1st NIC in SBS2003 192.168.16.2 (no gateway)
2nd NIC in SBS2003 192.168.0.3 (gateway 192.168.0.1)
Internet ADSL 192.168.0.1
Now for the problem.
If I remove the SBS2003 box everything works as it should. Remote workstations can terminal server in to head office and I can remote administer the workstations.
Add the SBS2003 back in, it all falls over.
If I do a tracert from 192.168.16.3 (TS) to 192.168.1.101 it goes straight to 192.168.16.2 (SBS) first hop and that’s it.
As I see it, I need to add some routing to the SBS2003 box to send any packets destined for 192.168.1.101 back to 192.168.16.1 but have no idea how to do this.
Maybe it's an ISA issue, just don't know.