ng_mppc_decompress: too many (4094) packets dropped, disabling node

[Gleb Smirnoff]

  Sami,

  I am running not with the exact patch that I've sent to you, but
with additional debugging printf, see attach. I'd like to make sure that
after such a large rekeying event the PPP link is still valid.

Since I can't cook this reordering case by hand, can you please
eventually patch your ng_mppc with attached patch and reload it. The
functionality is the same as the previous patch, but a printf is added.

And we need to ping peers IP address as soon as we see the printf
in logs. If the event happens very rarely, then some script needs
to be written, that monitors system log and once printf fires, it
should find interface name via ng_mppc node ID, and then take peers
IP address and send a ping probe.

If ping is replied, then MPPE survives this large rekeying and code
can be considered functional.

-- 
Totus tuus, Glebius.
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