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SubjectRe: ECN: Clearing the air (fwd)
James Sutherland wrote:

> I'm sure we all know what the IETF is, and where ECN came from. I haven't
> seen anyone suggesting ignoring RST, either: DM just imagined that,
> The one point I would like to make, though, is that firewalls are NOT
> "brain-damaged" for blocking ECN: according to the RFCs governing
> firewalls, and the logic behind their design, blocking packets in an
> unknown format (i.e. with reserved bits set) is perfectly legitimate. Yes,
> those firewalls should be updated to allow ECN-enabled packets
> through. However, to break connectivity to such sites deliberately just
> because they are not supporting an *experimental* extension to the current
> protocols is rather silly.

Do keep in mind, we aren't breaking connectivity, they are.


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