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Remote access VPN using PPTP

Hi,

I have a PIX 515e version 6.3 (5).The PIX is front end firewall

with the ISA2004 connected to the inside interface of the PIX. However,

I want to use the ISA as VPN server. Thus, I need the PIX to allow the

VPN traffic through to the ISA Server so that it can authenticate and

created the tunnel.

Refer attached pix config and setup diagram.Here is my config Internet - PIX - ISA Server -

LAN (DHCP,AD,Exchange 2003) PIX external: x.x.x.166 PIX Internal

172.17.0.2 ISA external: 172.17.0.1 ISA Internal 172.16.0.253

Pls provide steps to allow the PIX to pass the vpn traffic to ISA.

The DHCP in inside network of ISA will allocate IP for Remote VPN clients

PPTP is enabled on ISA 2004 and MSCHAP-2 as authentication

Without PIX firewall, remote access VPN using pptp worked fine.

Regards,

Prashanth

  • VPN
1 REPLY

Re: Remote access VPN using PPTP

to allow PPTP throught the PIX your ACLs should allow:

pptp - tcp 1723

gre - protocol 47

http://www.microsoft.com/technet/community/columns/cableguy/cg0103.mspx

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