I have just got myself an ISDN line and a Zyxel Omni.net plus modem,
but I have problems in getting it to work smoothly.
The problem is that I keep getting error messages saying something to
the effect of:
ppp: frame with bad fcs, excess = 4de9
The more trafic (for instance with ping) I generate, the less packages
comes through. The limit seems to be around packet sizes of 2048/4096.
If I stress my machine (which is a pentium 75 with 48Mb of RAM, a
couple of years old), more packages are dropped.
If my machine is only lightly loaded, pppd will only come up if I use
the option:
kdebug 7
Otherwise it fails rather eraly in the initial negotiations when a
ConfReq never sees the corresponding ConfAck.
However, if I run a heavy job (such as a kernel compilation), the
kdebug is not necessary to get pppd up. It will drop a few packages
with ping -s 4096, but now silently. With ping -s 8192, almost nothing
gets through.
If I run X11, the connection can not get up (with kdebug 7).
Does anybody have an idea where and how I should investigate? Should I
suspect my serial port? Is my machine simply too slow to handle a
64kps connection? Is there any kernel option I can set?
---------------------------+--------------------------------------------------
Christian Lynbech | Telebit Communications A/S
| Fabrikvej 11, DK-8260 Viby J
Phone: +45 8628 8176 | email: [EMAIL PROTECTED] --- URL:
http://www.tbit.dk
---------------------------+--------------------------------------------------
Hit the philistines three times over the head with the Elisp reference manual.
- [EMAIL PROTECTED] (Michael A. Petonic)
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