TCP/UDP ports for IP Communicator over VPN client

moabdallah · ‎03-18-2007

I have a IP Telephony network (CM 4.2, Voice Gateway, IP Phones). the network is connected to internet through two stage firewalls ( First stage: PIX and second stage: MS ISA )

I want to implmenet IP Communicator over VPN client dial-into the internet & terminate the VPN on PIX firewall and to conncet to the IP Telephony network

I want to know the ports that I should opened on the ISA server from outside to inside network

Anyone can help

Regards

Mohamed

paolo bevilacqua · ‎03-18-2007

Hi,

SCCP is port 2000 / TCP. Then if ISA does simmetric NAT, nothing else as it will open incoming RTP ports based on outgoing.

Hope this helps, if so please rate post!

paolo bevilacqua · ‎03-18-2007

I had forgot at the minimum the TFTP port, so here is a document that lists all the ports:

http://www.cisco.com/application/pdf/en/us/guest/products/ps6729/c1693/ccmigration_09186a008071672a.pdf