Re: hotmail not dealing with ECN

Daniel Chemko
2001-01-26T19:21:43Z

Microsoft are bad for dropping ICMP because of security.. .I mean try pinging
microsoft.com...

James Sutherland wrote:

> On Fri, 26 Jan 2001, Lars Marowsky-Bree wrote:
>
> > On 2001-01-26T16:04:03,
> > "Randal, Phil" <prandal@herefordshire.gov.uk> said:
> >
> > > We may be right, "they" may be wrong, but in the real world
> > > arrogance rarely wins anyone friends.
> >
> > So you also turn of PMTU and just set the MTU to 200 bytes because broken
> > firewalls may drop ICMP ?
>
> No - a workaround is used to detect such "black holes". Much as I was
> advocating for ECN, in fact. Also note that some firewalls (Microsoft's in
> particular) DO drop ICMP packets.
>
> James.
>
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