Hi,
I have a problem when using the GSM/GPRS/EDGE Siemens MC75 module
with PPP (version 2.4.2).
LCP comes up fine and authentication succeed, but while negotiating
IPCP, the VJ compression keeps failing.
<snip>
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0>
<ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01> <compress VJ 0f 01>]
Received bad configure-nak/rej: 02 06 00 2d 0f 01 02 06 00 2d 0f 01
rcvd [IPCP ConfReq id=0x1 <addr 10.0.0.1>]
sent [IPCP ConfAck id=0x1 <addr 10.0.0.1>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0>
<ms-dns10.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01> <compress VJ 0f 01>]
Received bad configure-nak/rej: 02 06 00 2d 0f 01 02 06 00 2d 0f 01
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0>
<ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01> <compress VJ 0f 01>]
Received bad configure-nak/rej: 02 06 00 2d 0f 01 02 06 00 2d 0f 01
<snip>
It never gets past this.
I think its because when the Siemens replies with the confrej, it
rejects the vjcomp twice in the same message.
It does work if I disable the VJ comp in PPP with "novj" and
"novjccomp". But I would like not to, for vjcomp is supported on some
other GPRS/EDGE modules and this is a generic setup. Anyway it should
just reject it correctly and continue. The Siemens MC55 module (the
MC75's predecessor) works fine, and rejects vjcomp properly.
Any thoughts?
Thank you,
Pieter
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