this may help. quoted from
http://www.ChicagoTech.net
What statements are required to allow a VPN inbound past my Cisco PIX?
The following example is a simple PPTP access list:
access-list 110 permit tcp any host x.x.x.x eq 1723
access-list 110 permit gre any host x.x.x.x
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Robert Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on
http://www.ChicagoTech.net
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