[Network] 'mtr' tool : are these results abnormal ??

[Tony Arnold]

On Tue, 2006-09-05 at 11:05 +0100, Tony Arnold wrote:
> On Tue, 2006-09-05 at 09:58 +0100, R Kimber wrote:
> 
> > I tried it and got 30% - 50% loss even to my router !!!!
> > 
> > There surely is some other explanation than an ISP-related one.
> 
> I did this at our University and was getting 15% packet loss to one of
> our local routers which I know is not overloaded.
> 
> Our network manager ran mtr from his Mac and saw 0% loss, so I'm
> wondering if there is a problem with the version of mtr on Ubuntu.

I'm an idiot! My firewall was stopping some of the ICMP traffic coming
back! Turn off the firewall and the figures look much more sensible.

Regards,
Tony.
-- 
Tony Arnold, IT Security Coordinator, University of Manchester,
IT Services Division, Kilburn Building, Oxford Road, Manchester M13 9PL.
T: +44 (0)161 275 6093, F: +44 (0)870 136 1004, M: +44 (0)773 330 0039
E: tony.arnold at manchester.ac.uk, H: http://www.man.ac.uk/Tony.Arnold