check_ping and source address

Ben O'Hara bohara at gmail.com
Wed Jul 5 11:24:01 CEST 2006


On 7/5/06, Ton Voon <ton.voon at altinity.com> wrote:
>
> On 5 Jul 2006, at 10:06, Ben O'Hara wrote:
>
> > Im looking at adding a ping check from our nagios host to a remote
> > host, the nagios machine has a number of interfaces and i want to set
> > the source address of the ping to ensure it goes over a specfic link
> > (and hence a specific VPN tunnel)
> >
> > anyone know if this is possible at all?  Ive had a look at the code
> > for check_ping and it looks like it might be a possibility as its just
> > calling the ping binary but rather than reinvent the wheel i thought
> > id ask here first.
> >
> > anyone doing anything like this at present?
> >
> > would it be a change to check_ping that people would use or would it
> > be better to do it elsewhere
>
> Ben,
>
> There is a patch that has been submitted on SF for this
> functionality: https://sourceforge.net/tracker/index.php?
> func=detail&aid=1499641&group_id=29880&atid=397599
>
> Unfortunately, this will not be applied into the main plugin code
> because it is too painful to parse through all the different
> distributions of ping to see if the source address option is supported.
>

Cheers for the reply Ton, yes, it probably isnt the best way to do it,
im using FreeBSD and ping on there takes -S for source address, -l is
preload.

> However, it is very useful functionality. If you can provide a patch
> for check_icmp (the pure C implementation of check_ping), we would
> definitely re-evaluate it.

A bit beyond my knowledge im afraid, but it does sound like other
people would find it useful if anyone manages to code something up ;-)

Ben
>
> Ton
>
> http://www.altinity.com
> T: +44 (0)870 787 9243
> F: +44 (0)845 280 1725
> Skype: tonvoon
>
>
>
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Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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