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SubjectRe: ECN causing problems
On Wed, 22 Nov 2000, Joseph Gooch wrote:
> My RaptorNT 6.5 firewall rejects all connections from my linux box when ECN
> is enabled. The error is attached. Perhaps this feature should be disabled
> by default? Or is there already an option of the sort that i'm missing? I
> only got the idea to disable it after a search of linux-kernel.

It's a faulty firewall. Have you checked for updates?

> Plz cc me, I"m not on the list.
> Later!
> Joe Gooch
> TCP packet dropped (>x.x.x.x: Protocol=TCP[SYN 0xc0] Port
> 1255->2401): Bad TCP flags combination (received on interface
> (probable QueSO probe as flags=0xc2)

ECN is NOT a "bad flags combination", RaptorNT is a bad firewall. Upgrade or
replace with something RFC compliant.

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