I have a 2620 router using the IOS Firewall (12.3). I have a particular PC that connects to a customer's VPN. They are using PPTP and say all I need to allow is PPTP traffic (TCP port 1723). However, when I open 1723 for incoming traffic it does n...

I am using ios firewall on a 2620 router. Firewall was configured using ConfigMaker v2.6. I allow the internet to access http(80), pop3(110), and smtp(25) on my mail server. When using Outlook Express from an outside connection I cannot send email. I...