I have a Motorola SBG6580 that I need to set up to allow access to our SBS Exchange Server on port 25
I have done nothing to the SBS Server. our dsl modem died so we are trying to use our cable modem to work as a temporary fix until our replacement dsl modem arrives. so any issues are related directly to our cable modem - and possibly Comcast.
When trying to set up Port Forwarding i'm asked for an internal IP address (no problem that's my SBS server at 192.168.0.2) but also an EXTERNAL ip address
I've attached a screenshot.
what do I put in as the external ip address? or do I leave it as 0.0.0.0? or is it the cable modem's ip address of 192.168.0.1?
one other issue, when I try open port check tool website, and ask if port 25 is accessible, the open port website says no.
thanks for your help!!