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Outgoing PPTP Connection Fails on ScreenOS 5.4.0r3

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Article ID: KB9662 KB Last Updated: 29 Nov 2010Version: 3.0
Summary:
Outbound PPTP was originally working on ScreenOS 5.3.0.  After upgrading to 5.4.0r3, PPTP connection fails
Symptoms:

Solution:
In ScreenOS 5.4.0, the PPTP service is missing the GRE protocol definition.  This has been addressed in 6.0, where a new pre-defined group called PPTP consists of a separate service called PPTP-ctrl, and GRE.

In the meantime, if still on ScreenOS 5.4.0, the workaround is to create a custom service that includes the following:

set service "PPTP-Custom" protocol tcp src-port 0-65535 dst-port 1723-1723
set service "PPTP-Custom" + 47 src-port 0-65535 dst-port 0-65535

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