> o PPTP is now identified by GRE Version Number of 1.
I'm not sure I buy that. PPTP uses GRE version 1, but GRE version 1
is not necessarily PPTP.
> o Key field is now decoded as Payload length and Call ID in case of
> PPTP.
I didn't do this in the GRE printer because I didn't want to have
any encapsulation-specific code in print-gre.c .
> o In general, length, checksum, offset are not a concern. So they
> are printed in -vv (or more verbose) case. Version number, Key,
> Call ID (in PPTP case), Sequence Number, Acknowledge Number
> (in PPTP case) are now printed by default.
This may be true of PPTP but may not be true of other GRE uses.
Bill
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