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12.29.2004 at 09:03AM PST, ID: 21256529
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PPTP and GRE client behind PIX with NAT - VPN problem!!

Asked by aalbuquerque in Network Software Firewalls, Enterprise Firewalls, Cisco PIX Firewall

Tags: pix, gre, pptp, nat, behind

Hello.

I wanna configure a Windows 2000 PPTP client with GRE behind my PIX firewall to connect to the VPN Server outside.

The problem is when I try to connect the VPN server, my client give me the message:

619: The especified port is not connected

How can I permit VPN connection thru my PIX from the inside to the outside?

My network configuration:
client (LAN) -> internal PIX -> DMZ -> external PIX (with static NAT) -> Cisco router -> Internet

GRE is enabled on internal, external and router.

access-list nat-inside permit gre host (client internal IP) host (VPN external server)

Same command at Cisco router. External PIX enables all outgoing traffic and stops any incomming traffic.

Thanks a lot!Start Free Trial
 
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5 HELP!!!! PIX 515e as VPN Serv…
6 Cisco VPN client through PIX
 
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[+][-]12.29.2004 at 09:54AM PST, ID: 12920573

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[+][-]12.29.2004 at 01:52PM PST, ID: 12922348

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About this solution

Zones: Network Software Firewalls, Enterprise Firewalls, Cisco PIX Firewall
Tags: pix, gre, pptp, nat, behind
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Solution Provided By: lrmoore
Participating Experts: 5
Solution Grade: B
 
 
[+][-]01.08.2005 at 06:50AM PST, ID: 12992495

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[+][-]01.10.2005 at 08:08AM PST, ID: 13004116

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[+][-]06.18.2005 at 03:22AM PDT, ID: 14247867

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[+][-]10.06.2005 at 03:39AM PDT, ID: 15029259

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[+][-]10.06.2005 at 03:41AM PDT, ID: 15029267

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[+][-]10.06.2005 at 03:43AM PDT, ID: 15029270

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