[PLUG] slow resolving host behind DI-604 router

[Paul Heinlein]

On Sun, 4 Jan 2004 rdought at pacifier.com wrote:

> I put my linux box running SuSE 8.1 behind a D-Link DI-604
> router/firewall, which is connected to ADSL. Before putting the
> machine behind the router, all my network connection (i.e., web,
> email, etc.) were quite quite quick. After setting up the DI-604, I
> can successfully connect to outside addresses, but resolving host
> names is terribly slow.

You might need to turn off congestion notification:

  sysctl -w net.ipv4.tcp_ecn=0

-- Paul Heinlein <heinlein at madboa.com>