Cisco 2821 General GRE

Unanswered Question
Jul 9th, 2009

I currently have a remote XP client trying to access our new vpn network from a remote location. The XP client is behind an at&t u-verse router. The flow diagram is below. I currently get a message on the XP client that GRE is not enabled or something of the sort, and it gets stuck on username and password verifying.

Flow Chart:

XP computer (192.168.1.100)

|

AT&t u-verse router (public ip)

|

Internet

|

Linksys RV082(192.168.0.1, public ip) configured with VPN passthrough enabled and portfowarded to allow pptp

|

Cisco 2821(192.168.0.100, 192.168.4.1) port fowared to allow pptp

|

Windows XP VPN server(192.168.4.91)

Yes i do know that the 2821 can do vpn however I was asked to do it this way.

How would i configure the 2821 (firewall is enabled) and what eles may need to be changed.

I have this problem too.
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