I have a Frac T-1 with a Cisco 1720 Router. My ISP configured the router for me since it is much more sophisticated than a Linksys router. Here's the deal. I know how to create a VPN through a Linksys router no problem. However, I'm having problems getting the VPN to work through my Cisco router. I need to use PPTP from outside my network to connect to my Win2K Server running Remote Access Server. I've forwarded ports 6, 1023, and 1723 to my VPN server, but my requests are not being forwarded. What am I missing?
the routers. I always had to permit the "gre" tunneling protocol traffic cause the server on the inside seemst to start using this protocol for the pptp tunnel communication and the client must be able to speak back using GRE.Could this be a access-list problem you are having ?
example: access-list 111 permit gre (source) (dest)
GRE comes instead of TCP or IP. GRE(Genetic Routing Protocol) is an old multiprotocl tunneling protocol originated from Cisco. But the MS server seemst to use the same service when answering pptp tunneling requests.
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I am currently unable to specify "crypto keyring" command when configuring VPN connection on my cisco 2901 router.
The following licenses have been activated on my router :