PPTP failed through ISA MS and ASA 8.0(2)

Unanswered Question
Jul 31st, 2007

Hello!

I have the following scenario:

PPTP_Client(MS_WinXP) - ISA(MS) - ASA_5520 - PPTP_Server(MS_WinXP)

ISA_server is configured with routing and PPTP-passthrough aware, ASA is configured with PPTP_inspect and PAT.

And the problem is in subject.

But, PPTP established successfully in the following scenarios:

1. PPTP_Client(MS_WinXP) - ISA(MS) - PPTP_Server(MS_WinXP)

2. PPTP_Client(MS_WinXP) - ASA_5520 - PPTP_Server(MS_WinXP)

3. PPTP_Client(MS_WinXP) - ASA_5520 - ASA_5520-PPTP_Server(MS_WinXP) : double PAT in this case

4. PPTP_Client(MS_WinXP) - ISA(MS) - ISA(MS) - PPTP_Server(MS_WinXP) : ISAs either in routing or NAT modes.

When PPTP is'nt established it frozes on PPP LCP phase (PPTP_Client didn't respond to server).

Any suggestions are welcome..

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grisadovoy Fri, 08/10/2007 - 04:35

Thx, already used..

Bug is fixed in interrim release 7.2.(2.10)

PPTP-inspect doesn't alter Peer's call-id in all packets (specifically in PPTP-Set-link)

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