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Old 09-07-2001, 01:00 PM   #1
Registered: Jul 2001
Location: California, US
Distribution: Slackware
Posts: 196

Rep: Reputation: 30
invalid icmp error sent to a broadcast?

I've just upgraded my kernel to 2.4.8 which I haven't done since I had my old linux box about 4 years ago, so my problem is related to that. Well, after my upgrade I was in xwin for maybe 24 hours and when I exited, I saw my first terminal window had been receiving the error:
<IP ADDRESS> sent an invalid ICMP error to a broadcast

I get this message on my console every few minutes and its starting to get really annoying. Well, the ip address its from is my Novell Groupwise and print server which also had a problem that seemed to happen about the same time which was I forgot to change the DNS to the new one since my old dsl company went down.
Old 06-11-2002, 08:09 AM   #2
Registered: Nov 2001
Distribution: Redhat 7.0 ,mandrake 8.0 ,Redhat 7.2
Posts: 99

Rep: Reputation: 15
i have the same problem...

ifconfig shows errors on eth1..

so i tried this...

echo 1 > /proc/sys/net/ipv4/icmp_ignore_bogus_error_response
(config sysctl.conf for this to work at boot time)...

i still get errors on ifconfig eth1 but the messages have stopped...

*********i haven't done this yet****************

recompling the kernel with icmp..response = 1 will also help

the file is /usr/src/linux/net/ipv4/icmp.c
int ... icmp_ignore...responses = 0 ,change it to 1..


hope some one comes up with a better idea.....!

Old 06-11-2002, 02:36 PM   #3
Registered: Jul 2001
Location: California, US
Distribution: Slackware
Posts: 196

Original Poster
Rep: Reputation: 30
i had fixed this problem but it being so long ago i dont quite remember what it was i did wrong. i THINK that i had enabled some sort of debugging in the kernel, but like i said its been to long. There is an easy way though to get rid of this error other than what you've said... if you i think of anything else i'll let you know.


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