Re: Very strange: Cannot access any sites although connection apparently good
On 16 Feb 2004, Derrick 'dman' Hudson wrote:
> On Mon, Feb 16, 2004 at 05:17:07PM +0000, Anthony Campbell wrote:
> | On 16 Feb 2004, David Clymer wrote:
> [...]
> | > Do you have ECN enabled?
>
> | Yes, thank you very much; this really does seem to be it.
> | Next question: how do I turn it off permanently? A quick search on my
> | system suggests it has something to do with ipchains, hence my firewall,
> | which seems a bit of a problem.
>
> To disable TCP ECN at each boot, put the following in /etc/sysctl.conf:
> # Some routers are broken.
> net/ipv4/tcp_ecn = 0
>
> (if the router correctly and completely followed the TCP
> specification, then the ECN extension wouldn't cause it to
> malfunction)
>
> -D
>
> --
> > SELECT * FROM users WHERE clue > 0
> 0 rows returned
> (http://www.thinkgeek.com/images/products/zoom/no-clue.jpg)
>
> www: http://dman13.dyndns.org/~dman/ jabber: dman@dman13.dyndns.org
Thanks very much to both. I have never heard of this before. A little
research on Google has produced a sheaf of papers about it. We live and
learn...
Anthony
--
ac@acampbell.org.uk || http://www.acampbell.org.uk
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