Author: James Courtier-Dutton Date: To: Hampshire LUG Discussion List Subject: Re: [Hampshire] [OT] Network issue - how to describe
On 12/08/07, Rob Malpass <rob@???> wrote: >
> Bizarrely, about 5 minutes after posting, I received a message from
> OrangeProblems.co.uk and having followed a few links, I was told to change
> an "MTU" setting in the router which has fixed things nicely.
>
> Interesting that it had been working fine on the other MTU setting for
> around 5 years.
>
> Cheers
> Rob
>
They are probably filtering the wrong ICMP packets.
See "RFC 1191 - Path MTU discovery" if you are curious as to which
ICMP packets they are wrongly dropping.