🚀 go-pugleaf

On 20 Jun 2000 21:05:11 GMT, nospam@merp.demon.co.uk.invalid (Julie
Brandon) wrote:

>Correct, my error.  In the situations it was failing, it was being invoked
>incorrectly, which lead to it not getting at the right set of ppp options
>which meant pppd not knowing who it was or who it was calling and hence
>unable to authenticate.

So you've found the problem and fixed it?

>>I can look up the meaning of these unrecognised options if no-one
>>immediately recognises them.  It's odd that Demon's end isn't
>>consistent in the options it requests: if this behaviour (by Demon)
>>has started recently, that may explain why your system has only just
>>started to show failed connections.

>I'd love to know what those options mean, is there a reference anywhere
>that I could look up?

Where do I start? :-)

There's an introductory Web page on analysing a PPP connection log at
http://www.kempston.net/solaris/ppplog.html .  This is specifically
for users of aspppd on Solaris but the general principles apply to any
PPP.

"Using and Managing PPP" by Andrew Sun, published by O'Reilly, ISBN
1-56592-321-9, is an excellent and very readable primer on PPP.

RFC 1548 defines PPP and LCP.

"TCP/IP Illustrated" (all 3 volumes) by W R Stevens, published by
Addison-Wesley, is probably the standard work on TCP/IP but there's
not much about PPP.

LCP options are listed at
http://www.isi.edu/in-notes/iana/assignments/ppp-numbers

from which the options being sent by Demon and unrecognised by pppd
appear to be:

0x00 : Vendor Specific                             [RFC2153]
0x11:  Multilink-MRRU                              [RFC1717]
0x13:  Multilink-Endpoint-Discriminator            [RFC1717]

>Yes, I also find it interesting that the options
>don't appear to be completely consistant!?  At least it doesn't appear to be
>the cause of this failure.

True.  Glad you sorted it (if I've interpreted your opening remarks
correctly :-)

Regards, Mike.

-- 
Solaris on Intel: http://www.kempston.net/solaris/
PGP public key available by mail from pgp@kempston.net