We have an issue trying to configure additional ISP for publishing the Exchange's OWA to internet.
At the moment the publishing is working for the active ISP and is configured as follows.
- User Portal configured to use port 443 and to use xg public ISP1 IP x.x.x.1
- A DNAT publishing a pool of internal server to use public ISP1 IP x.x.x.2
- A FW rul to permit traffic to internal exchange servers for port HTTPS
Now we have added a new ISP2 to the XG using a separate port.
ISP2 Public ip assigned to XG is y.y.y.1
For OWA on second ISP we added the IP y.y.y.2 on the external interface.
we duplicated the DNAT rule and FW rules changing the "port" used as "target" using the port assigned to second ISP provider for OWA publishing.
Unfortunately it doesn't work since when we try to connect to y.y.y.2 in https we get the user portal instead of being redirected to intern server
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