[smokeping-users] Re: testing UDP to discover where PL is occurring..

Ed Ravin eravin at panix.com
Wed Feb 12 19:14:38 MET 2003

On Wed, Feb 12, 2003 at 11:18:51AM +1100, Ross Tsolakidis wrote:
> One of our ISP's seems to be dropping all UDP packets during certain periods
> of the day for about 10-15 secs.
> ICMP does not seem to get dropped, so I can't use that.  I need to use UDP,
> is this possible ?
> My question is, which probe should I use and can I configure the probe to
> use a certain UDP port.

How about "traceroute -n -f 255 -m 255 -p PORTNUM hostname" ?  That basically
turns traceroute into a UDP ping utility.

> Also if anyone has any suggestions on how to discover where the UDP packet
> loss is occurring along the way, please let me know :)

traceroute (without the -f and -m options shown above)
might give you some clues if you can run it during the outage.

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