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ports to open on cisco 2600 for cisco vpn

Posted on 2009-07-01
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Last Modified: 2012-05-07
I have users from my HQ who can only connect to their e-mail via Cisco VPN client. Unfortunately they are unable to that from within my network. Which ports must be opened for Cisco vpn clients to work from within my network
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Question by:it_gsr
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JFrederick29 earned 500 total points
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The Cisco VPN server that these VPN clients connect to must be configured to use NAT-Traversal.  You should only need to allow UDP 500 and UDP 4500 outbound as long as NAT-Traversal (NAT-T) is enabled.
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