> Yes, I've dealt with these people. If they turn off all ICMP, they often
> drop fragments as well, making the problem even worse. You can sometimes get
> them to listen by asking them if their Internet access seems a little
> "weird" in that some sites work sometimes or downloads are slow or the
On Oct 14, 2008, at 1:59 PM, Sean Carolan wrote:
If you've ever dealt with with one of these paranoid Mordac-type
security managers you know exactly what I'm talking about. In our
case the path of least resistance was to disable pmtu discovery, and
tell the customer that we've done all we poss
Les Mikesell wrote:
> Ralph Angenendt wrote:
>>
>> As said, they deliberately broke their internet connection, so there isn't
>> much you can do except setting your MTU to an extremely low value and
>> hope that there's nothing in between which has an even lower MTU.
>
> It doesn't have to be extr
Thanks for the information. If I understand this correctly, the
client would have to convince the owner of each and every router hop
along the way to disable PMTU discovery if he insists on dropping all
ICMP packets?
And Scott hit the nail on the head with this comment:
> Sometimes you can't be
Ralph Angenendt wrote:
As said, they deliberately broke their internet connection, so there isn't
much you can do except setting your MTU to an extremely low value and hope
that there's nothing in between which has an even lower MTU.
It doesn't have to be extremely low, it just has to be low
Scott Silva wrote:
> on 10-14-2008 6:24 AM Ralph Angenendt spake the following:
>
> > So you basically broke your internet connection because of stupid
> > customers? No, there isn't anything you can do on your side -
> > especially if you don't know how large their MTU is set (which you
> > cannot
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