#14173: icmp6_send: no reply to icmp error
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Reporter: daniel.petre@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone: Chaos Calmer (trunk)
Component: kernel | Version: Trunk
Resolution: | Keywords:
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Comment (by xavier@…):
From the discussion outlined here [1]:
{{{
OK, this is a pure Linux kernel issue. I had a look at the sources of the
kernel and in file net/ipv6/icmp.c are the following lines:
/*
* Never answer to a ICMP packet.
*/
if (is_ineligible(skb)) {
if (net_ratelimit())
printk(KERN_DEBUG "icmpv6_send: no reply to icmp
error\n");
return;
}
The function is_ineligible() itself carries the comment:
* We do not reply, if:
* - it was icmp error message.
* - it is truncated, so that it is known, that protocol is ICMPV6
* (i.e. in the middle of some exthdr)
I would suggest: * either exclude kernel debug messages from beeing logged
in /etc/syslogd.conf or * comment out the if and printk, but keep the
return, then recompile your kernel. Maybe future versions of the 2.4 line
remove that message. But it's a debug message (highest level of verbosity)
so if you don't like it, remove it from the code or reconfigure your
syslog-daemon. Hope that helps, good luck!
}}}
Comment out the code that prints the debug message and recompile the
kernel to avoid these annoying lines.
[1] https://www.sixxs.net/forum/?msg=general-142198
--
Ticket URL: <https://dev.openwrt.org/ticket/14173#comment:4>
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