PPTP is using:
- a modified GRE tunnel which lays directly on the top
of IP with protocol (I do not have right now the number of the
protocol but check in /etc/protocols for the right number)
- a TCP control session to port 5678 (on the PPTP 'server') which
is by the way a funny number ;-)
Also beware that PPTP is probably useful for you but do not
trust too much its security...
-eric
At 11:45 1/08/97 -0500, Bertrum Carroll wrote:
>I'm attempting to setup a FW-1 filter to support PPTP.
>I'm using FW-1 3.0a on Solaris.
>
>PPTP is not defined, how do I seutp a fitler just for PPTP not all IP?
>
>Thanks In Advance
>Bert Carroll
>
Eric Vyncke
Technical Consultant Cisco Systems Belgium SA/NV
Phone: +32-2-778.4677 Fax: +32-2-778.4300
E-mail: evyncke @
cisco .
com Mobile: +32-75-312.458
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