4ux6as402 at sneakemail
May 24, 2008, 3:50 AM
Post #1 of 2
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Bugreport: {"packet too short" message} is still true
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> "packet too short" message
I have several of those in my /var/log/messages from the vpnc daemon;
This was reported to the list in 2005:
http://lists.unix-ag.uni-kl.de/pipermail/vpnc-devel/2005-February/000549.html
and the reason was found there too.
Is there something I can do? I know that patches are welcome, but I
suggest at least the patch below to the
http://svn.unix-ag.uni-kl.de/vpnc/trunk/TODO , which seems to be the
list of known bugs too. :D
I'm using vpnc version 0.4.0
Peter
From that thread:
On Sun, Feb 27, 2005 at 05:14:30PM +0100, Alessandro Suardi wrote:
> tcpdump: listening on wlan0, link-type EN10MB (Ethernet), capture
> size 96 bytes
> 16:42:46.809020 IP (tos 0x0, ttl 114, id 21504, offset 0, flags
> [none], proto 17, length: 29) 193.32.x.xx.4500 > 192.168.1.6.4500:
> [no cksum] UDP, length 1
...
> It's very easy to see that the packets triggering the message are the
> ones with length=1, no flags, no cksum, as these packets come in from
> the VPN server even when I'm doing nothing, so matching the tcpdump
> output and the syslog messages is a piece of cake :)
On Mon Feb 28 07:05:47 CET 2005 Maurice Massar wrote:
> ah.. I remember. These packets are defined in the NAT-T RFC to keep the
> NAT mapping alive, so it is safe to just ignore them (and maybe vpnc
> should send them too...)
TODO patch (sorry about wrapping):
--- TODO.orig 2008-05-24 12:45:50.000000000 +0200
+++ TODO 2008-05-24 12:45:43.000000000 +0200
@@ -69,6 +69,9 @@
- linux-mipsel (WRT54G)
http://openwrt.alphacore.net/vpnc_0.3.2_mipsel.ipk
- howto-de http://localhost.ruhr.de/~stefan/uni-duisburg.ai/vpnc.shtml
+* Fix "packet too short" message in /var/log/messages
+ - See thread starting in
+
http://lists.unix-ag.uni-kl.de/pipermail/vpnc-devel/2005-February/000549.html
----
* DONE implement hybrid-auth
--
Peter Valdemar Mørch
http://www.morch.com
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