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mysterious upload problem
- To: <linux-il(at-nospam)linux.org.il>
- Subject: mysterious upload problem
- From: mulix <mulix(at-nospam)actcom.co.il>
- Date: Thu, 1 Feb 2001 23:01:48 +0200 (EET)
- Delivered-To: linux.org.il-linux-il@linux.org.il
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
hello,
it seems that my linux box has decided to make my life interesting. first
came the fun with the ADSL modems, and now this:
whenever i try to send an email which is over a certain size, the sending
fails. tcpdumping the connection shows that once the sending reaches a
certain stage, it stops and the same packet (rather, the same packet
contents) are sent over and over again. it can also be seen that the
server never acknowledges this packet, as it should (?).
this happens with both pine and netscape's mail client, when sending to
two different mail servers. it also happens in IRC, when doing a /dcc
send. i think it also happens in http, when doing a POST. it DOES NOT
happen in ftp upload, nor does it happen in scp (the ssh rcp).
any ideas? a friend of mine had a problem which sounded remarkably
similar with the same ADSL modem, but using windows, and one day his
problem simply went away :(
i'm using the ATUR2 ADSL modem, and i tried setting the MTU on eth0 and
ppp0 to both 1452 and 1366.
thanks in advance for any help or ideas on how i can debug this further.
********* update ***********
as i was proof reading my email, i realized that i set the mtu on both
eth0 and ppp0 to 1452, and then on both of them to 1366. i then tried to
set the mtu on eth0 (between the modem and the computer) to 1452, and the
mtu on ppp0 (computer and provider) to 1366, and this apparently made the
trick and everything works now.
(so why am i posting this? a) if someone can explain to me what was the
problem, i will be obliged and b) someone else will probably run into the
same problem and this might help)
--
mulix
http://www.advogato.com/person/mulix
linux/reboot.h: #define LINUX_REBOOT_MAGIC1 0xfee1dead
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