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Outgoing PPTP Connection Fails on ScreenOS 5.4.0r3



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

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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