[H-GEN] Mail problems.......

[Anthony Towns]

-----BEGIN PGP SIGNED MESSAGE-----

On Tue, 23 Sep 1997, Michael Anthon wrote:

> My ISP uses Linux and the MTU is negotiated, so I would assume that 1500 is 
> ok.  I set mine to 552 a little while ago and no obvious improvement was 
> forthcoming

That does sound like it's fine. 

> Can you use a different value for MRU and MTU?  Most documentation 
> indicates you can, but I can find no way to determine what the MRU actually 
> is.  ifconfig gives the MTU only.

Yes, you can. I'm not sure why ifconfig doesn't say what the mru is
(I suppose because it doesn't matter for programs on this computer,
only for those on the one you're connected to), but pppd has an
argument "mru <value>" (value defaults to 1500, according to pppd(1)),
and I believe it reports it to /var/log/debug in debug mode.

> Tried that..... i get the following errors and these seem to coincide with 
> the initial connection to the smtp server 
> Sep 22 23:30:19 linux pppd[18500]: Unknown protocol (0x7) received
> Sep 22 23:30:19 linux pppd[18500]: Unknown protocol (0xd) received
> Sep 22 23:30:19 linux pppd[18500]: Unknown protocol (0x4d) received
> Sep 22 23:30:19 linux pppd[18500]: Unknown protocol (0x5468) received
> Sep 22 23:30:19 linux pppd[18500]: Unknown protocol (0x666f) received
> Sep 22 23:30:19 linux pppd[18500]: Unknown protocol (0x7) received

That seems dodgy.

Did Robert's suggestion wrt asyncmap help?

Otherwise, my pppd options are:

] asyncmap 0
] crtscts
] mru 1500
] mtu 1005
] proxyarp
] lock
] modem
] lcp-echo-interval 30
] lcp-echo-failure 8
] lcp-max-configure 20 
] ipcp-accept-local
] ipcp-accept-remote

The first five are the only ones I'd see as likely to cause problems.

It might be worth posting the [LCP ConfReq ...] lines from the debug
output of pppd. Mine are something like:

] Sep 23 06:10:38 azure pppd[5113]: sent [LCP ConfReq id=0x1 <mru 296>
   <asyncmap 0x0> <magic 0x223cb5e7> <pcomp> <accomp>]
] Sep 23 06:10:38 azure pppd[5113]: rcvd [LCP ConfAck id=0x1 <mru 296>
   <asyncmap 0x0> <magic 0x223cb5e7> <pcomp> <accomp>]
] Sep 23 06:10:40 azure pppd[5113]: rcvd [LCP ConfReq id=0x2 
   <asyncmap 0x0> <magic 0x491ed3af> <pcomp> <accomp>]
] Sep 23 06:10:40 azure pppd[5113]: sent [LCP ConfAck id=0x2 
   <asyncmap 0x0> <magic 0x491ed3af> <pcomp> <accomp>]
] Sep 23 06:10:40 azure pppd[5113]: sent [IPCP ConfReq id=0x1 
   <addr 0.0.0.0> <compress VJ 0f 01>]
] Sep 23 06:10:41 azure pppd[5113]: rcvd [IPCP ConfReq id=0x3
   <compress VJ 0f 01> <addr 130.102.2.10>]
] Sep 23 06:10:41 azure pppd[5113]: sent [IPCP ConfAck id=0x3
   <compress VJ 0f 01> <addr 130.102.2.10>]
] Sep 23 06:10:43 azure pppd[5113]: sent [IPCP ConfReq id=0x1 
   <addr 0.0.0.0> <compress VJ 0f 01>]
] Sep 23 06:10:44 azure pppd[5113]: rcvd [IPCP ConfNak id=0x1 
   <addr 130.102.121.133>]
] Sep 23 06:10:44 azure pppd[5113]: sent [IPCP ConfReq id=0x2 
   <addr 130.102.121.133> <compress VJ 0f 01>]
] Sep 23 06:10:44 azure pppd[5113]: rcvd [IPCP ConfAck id=0x2 
   <addr 130.102.121.133> <compress VJ 0f 01>]

HTH.

Cheers,
aj

- --
Anthony Towns <aj at humbug.org.au> <http://student.uq.edu.au/~s343676/>
I don't speak for anyone save myself. PGP encrypted mail preferred.

``Like the ski resort of girls looking for husbands and husbands looking
  for girls, the situation is not as symmetrical as it might seem.''

-----BEGIN PGP SIGNATURE-----
Version: 2.6.3ia
Charset: ascii
Comment: Key available at http://student.uq.edu.au/~s343676/aj_key.asc

iQCVAwUBNCfAbeRRvX9xctrtAQFxrgP/SfUWKQiFQW/ZoDIHQQUEpYfUNAZC1Low
IrUUCncxHiSqSurG4v+JGfNnPczZhgIL209D8Q3kq9etfv1vyU40pYfPTEqfVTpm
7ZtXbbN5K9ae69KDfJBqJ8lKXrX6fQ4oc9Omb8DOLgb6j8LNP8dA8bJiAV6SfzGi
6kw9iyfB64Y=
=PzfJ
-----END PGP SIGNATURE-----

----------------------- HUMBUG General List --------------------------------
echo "unsubscribe general" | mail majordomo at humbug.org.au # To Unsubscribe