Firewall ports for Cisco vpn client 4.x

[sfortuna74]

Could someone please tell me what ports need to be open on a firewall in order for the Cisco vpn client to operate properly?

Thank you

[Jon Marshall]

Hi

If you mean terminating on a firewall you don't have to open any ports as the firewall will allow IPSEC connections.

If you mean through a firewall

UDP 500 isakmp

IP 50 ESP

IP 51 AH ( note this is generally not needed)

If you need NAT-T then udp 4500

if you need IPSEC over TCP port 10000

HTH

Jon

[sfortuna74]

Thank you very, very much for the quick response.