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TCP/UDP ports for IP Communicator over VPN client

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

2 REPLIES
Hall of Fame Super Gold

Re: TCP/UDP ports for IP Communicator over VPN client

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!

Hall of Fame Super Gold

Re: TCP/UDP ports for IP Communicator over VPN client

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

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