[Nagiosplug-help] Can check_ping or check_icmp disable DF?

[Thomas Guyot-Sionnest]

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On 13/02/08 11:53 AM, Prentice, Michael J. wrote:
> I’m having an issue pinging a few hosts that are behind an ISP that
> fragments the ICMP packets.  Redhat or perhaps check_ping/check_icmp by
> default enforces the DF bit and thus we can’t monitor these devices. 
> Command line ping allows a “–M don’t” option to allow fragmentation.  Is
> it possible to enable that option with check_ping or check_icmp?

If you put a feature request in sourceforge for check_icmp I will
consider it when I have time...

In the mean time, a quick fix could be using the following configure option:

- --with-ping-command=SYNTAX sets syntax for ICMP ping

Look for the output of "--with-ping-command" at the end of the configure
run, and just re-use it with your option to allow fragmentation.

Thomas
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