Hi, I'm currenty having a publishing problem using TMG ISP-R.
We have 2 Web publishing rules with 2 HTTPS Listeners that use 2 IPs from 2 ISPs, so each listener has 2 IPs assigned, one from each of the ISP.
Whichever listener has the second IP Address of the NIC card assigned to, that listener fails to open the web page from outside. Let me give an example to explain this better:
2 Publishing Rules: OWA and Secure Web.
2 HTTPS Listeners: OWA Listener, SWeb Listener.
2 ISPs: ISP1, ISP2
2 IPs per ISP on each external NIC on the TMG Server: External NIC 1: 10.1.0.1, 10.1.0.2
External NIC 2: 10.2.0.1,10.2.0.2
When OWA Listener is using IPs: 10.1.0.1, and 10.2.0.1, with the ISP-R working, it works fine.
When OWA Listener is using IPs: 10.1.0.2, 10.2.0.2, with the ISP-R working, it only works using the first ISP, not the second one.
and the same thing happens with the second listener if I switch them back and forth.
I've already configured ISP-R with only one Default Gateway on one NIC and no Gateway on the other and the adding the second default gateway using the ISP-R Wizard.
Also tried configuring the ISP-R with both gateways set on each NIC adapter, with this configuration the response is quite different, the listener using the second IPs from the External NICs don't work at all when both ISPs are up, but when I turn one or the other down then it works.
It's quite difficult to explain it but hopefully someone gets it, if not, let me know.
Thanks for the replies.
Eduardo Rojas