On Sat, 14 Aug 1999, Ken Mayer wrote:
|Aug 14 15:54:55 adsl-kmayer pppd[2904]: pppd 2.3.7 started by root, uid 0
|Aug 14 15:54:55 adsl-kmayer pppd[2904]: Using interface ppp0
|Aug 14 15:54:55 adsl-kmayer pppd[2904]: Connect: ppp0 <--> /dev/ttya0
|Aug 14 15:54:55 adsl-kmayer pppd[2904]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xd91cb63a> <pcomp> <accomp>]
|Aug 14 15:54:57 adsl-kmayer pppd[2904]: rcvd [LCP ConfReq id=0x0
<auth chap 81> <magic 0x1df5> <pcomp> <accomp>]
|Aug 14 15:54:57 adsl-kmayer pppd[2904]: sent [LCP ConfRej id=0x0
<auth chap 81>]
|Aug 14 15:54:57 adsl-kmayer pppd[2904]: rcvd [LCP ConfAck id=0x1
<asyncmap 0x0> <magic 0xd91cb63a> <pcomp> <accomp>]
|Aug 14 15:54:57 adsl-kmayer pppd[2904]: rcvd [LCP TermReq id=0x1 00 00 02 dc]
|Aug 14 15:54:57 adsl-kmayer pppd[2904]: sent [LCP TermAck id=0x1]
|Aug 14 15:54:58 adsl-kmayer pppd[2904]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xd91cb63a> <pcomp> <accomp>]
|Aug 14 15:55:25 adsl-kmayer last message repeated 9 times
|Aug 14 15:55:28 adsl-kmayer pppd[2904]: LCP: timeout sending Config-Requests
|Aug 14 15:55:28 adsl-kmayer pppd[2904]: Connection terminated.
|Aug 14 15:55:28 adsl-kmayer pppd[2904]: Connect time 0.6 minutes.
|
|So, is chap 81 a new protocol.
That's MS-CHAP version 2, pppd recognizes it and rejects it with a message
that lets you know what it is, but can't authenticate with it. The NT
wrongly sends a TermReq in an effort to shut down the LCP negotiations,
which doesn't work since the LCP negotiations didn't reach the open state.
That's why you see pppd start LCP negotiations again at the last, but the
NT has gone away - the NT's broken PPP implementation thinks they are
finished but pppd knows better. It doesn't do pppd any good to be right
though.
You can try to nudge the NT into a different authentication by configuring
pppd for MS-CHAP 80 (or possibly CHAP or PAP) so that pppd is able to Nak
MS-CHAP 81 and request an alternative. The caveat is that it's likely that
the NT can be configured to accept only version 2 and if it is configured
that way then there's no hope.
---
Clifford Kite Not a guru. (tm)
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