(ASCEND) Cisco routers broke under TNT 8.0.1

[Dave Salaman <dsalaman@primary.net>]

Hi,

We just upgraded from 7.0V7 to 8.0.1. Lo and behold, none of our customers
with Cisco gear can connect anymore. All sessions fail C=185 P=63.

Packet tracing from both sides reveals the problem. The Cisco's are set up
for a dummy remote address. In previous releases the Cisco would NAK the
NAS address being offered by the TNT a few times and finally the TNT would
give up and say "you win" (the Cisco doesn't really have to have the
remote, TNT, IP address, it will route the traffic to whatever it thinks
the remote IP is, which will always be the other end of the PPP link).
Now, under 8.0.1, the TNT keeps resending and the Cisco keeps NAKing until
the TNT now CLOSES THE CONNECTION !

Anybody seen anything similar yet and have any workarounds ?

-- 
    Dave

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