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Date:      Tue, 15 Apr 1997 01:22:04 -0400 (EDT)
From:      "John W. DeBoskey" <jwd@unx.sas.com>
To:        freebsd-current@freebsd.org
Subject:   UserMode ppp problems (Bad FCS?)
Message-ID:  <199704150522.AA10868@iluvatar.unx.sas.com>

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Hello,

   I have been arguing (and losing) with usermode ppp. It appears that
the server I'm dialing into is sending out a configuration header
that we don't recognize. Could someone with more knowlege than I tell me
what a bad FCS actually is? Any pointers are greatly appreciated!

Thanks,
John

   From my log file:

04-14 20:08:55 [6844] ReadFromModem
04-14 20:08:55 [6844]  7e ff ff 7d 23 c0 21 7d 21 7d 21 7d 20 7d 34 7d ~}#@!}!}!} }4}
04-14 20:08:55 [6844]  22 7d 26 7d 20 7d 2a 7d 20 7d 20 7d 25 7d 26 7d "}&} }*} } }%}&}
04-14 20:08:55 [6844]  29 7d 24 a2 6f 7d 27 7d 22 7d 28 7d 22 b3 b7 7e )}$"o}'}"}(}"37~
04-14 20:08:55 [6844] HdlcInput:
04-14 20:08:55 [6844]  ff ff 03 c0 21 01 01 00 14 02 06 00 0a 00 00 05
04-14 20:08:55 [6844]  06 09 04 a2 6f 07 02 08 02 b3 b7
fcs = 3da2 (bad)
Bad FCS
04-14 20:08:58 [6844] LCP: SendConfigReq
04-14 20:08:58 [6844]  ACFCOMP
04-14 20:08:58 [6844]  PROTOCOMP
04-14 20:08:58 [6844]  ACCMAP [6] 00000000
04-14 20:08:58 [6844]  MRU [4] 1500
04-14 20:08:58 [6844]  MAGICNUM [6] d16ad3ac
04-14 20:08:58 [6844]  AUTHPROTO [4] 49187
04-14 20:08:58 [6844] HdlcOutput
04-14 20:08:58 [6844]  ff 03 c0 21 01 02 00 1c 08 02 07 02 02 06 00 00
04-14 20:08:58 [6844]  00 00 01 04 05 dc 05 06 d1 6a d3 ac 03 04 c0 23
04-14 20:08:58 [6844] WriteModem
04-14 20:08:58 [6844]  7e 7d df 7d 23 c0 21 7d 21 7d 22 7d 20 7d 3c 7d ~}_}#@!}!}"} }<}
04-14 20:08:58 [6844]  28 7d 22 7d 27 7d 22 7d 22 7d 26 7d 20 7d 20 7d (}"}'}"}"}&} } }
04-14 20:08:58 [6844]  20 7d 20 7d 21 7d 24 7d 25 dc 7d 25 7d 26 d1 6a  } }!}$}%\}%}&Qj
04-14 20:08:58 [6844]  d3 ac 7d 23 7d 24 c0 23 4c 7d 2b 7e             S,}#}$@#L}+~
04-14 20:08:59 [6844] ReadFromModem
04-14 20:08:59 [6844]  7e ff ff 7d 23 c0 21 7d 21 7d 22 7d 20 7d 34 7d ~}#@!}!}"} }4}
04-14 20:08:59 [6844]  22 7d 26 7d 20 7d 2a 7d 20 7d 20 7d 25 7d 26 7d "}&} }*} } }%}&}
04-14 20:08:59 [6844]  29 7d 24 a2 6f 7d 27 7d 22 7d 28 7d 22 79 7d 2a )}$"o}'}"}(}"y}*
04-14 20:08:59 [6844]  7e                                              ~
04-14 20:08:59 [6844] HdlcInput:
04-14 20:08:59 [6844]  ff ff 03 c0 21 01 02 00 14 02 06 00 0a 00 00 05
04-14 20:08:59 [6844]  06 09 04 a2 6f 07 02 08 02 79 0a
fcs = 3da2 (bad)
Bad FCS


-- 
jwd@unx.sas.com       (w) John W. De Boskey          (919) 677-8000 x6915
jwd@baggins.ral.nc.us (h)                            (919) 781-0607



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