I'm trying to setup a VOIP application on my network and it's not working. The provider suggested that I add an exception to my PIX firewall (V. 7) for their IP range. I know how to login to the pix and move around a bit, but that's about all. I do know that there is already a few entries in an access list for my web and email servers.
Could anyone tell me how to let traffic in from their IP range? They said just open all ports, but I'd like to try just opening the port their application runs on first if possible. I'm guessing I just need to add an Access list entry and then save my configuration, but I"m not sure. Any suggestions would be appreciated.