For those of you using the AT&T Net Client (and there are many of you), here are the ports that need to be open on your firewall in order to allow you to use Mesa Networks' service.
TCP 21
TCP 50
TCP 80
TCP 389
UDP 500
TCP 709
TCP 5080
Typically (almost 99% of the time), the problem lies with UDP port 500. If you get stuck in "negotiating keys" then this is the problem. There is a program which will allow you to change UDP ports. I'll try to post it here when I get to my work computer. -- My Website
IP Protocol 50 - For IPSec Tunnel UDP Port 500 - For IPSec Session Key Negotiations TCP Port 389 - For Digital Certificate Revocation List Check TCP Port 709 - For Digital Certificate Processing TCP Port 5080 (for v5 clients) - Retrieve Tunnel Server List
TCP Port 21 - For software updates (Desirable, but non-critical) (Used for FTP) TCP Port 80 - For active end user experience tracking (Desirable, but non-critical) (Used for HTTP) -- My Website
