Open ports on a Cisco 2921 for video conferencing unit.
Posted on 2015-02-17
I’m having troubles modifying an inherited router to open ports for video conferencing. I need to have an internal local video conferencing unit be able to make calls through a site to site VPN tunnel and be able to accept and make calls to/from the outside. With the current setup I am able to make calls thru the site to site tunnel and calls to the outside connect but have no video and audio. Nothing makes it in.
The router is currently setup with a mixture of zone based firewall and ACL. If there is a part of the configuration I can post to help, let me know. The config is really long and confusing. I have tried setting up a 1 to 1 nat to make calls in but this does not help the in to out calls and breaks the site to site vpn calls. It does partially work because I am able to access the web interface from the external ip I assigned to it. The ports that will need opened are below.
Gatekeeper Discovery (RAS)
Q.931 Call Setup
Audio Call Control