network problem with router

[Faheem Mitha <faheem@email.unc.edu>]

Dear People,

I'm having some odd networking problems with my router, The D-Link 
DGL-4300 
(http://www.amazon.com/gp/product/B0006TIA02/002-4711104-7484852).

Incoming ssh connections through the router using port forwarding to two 
different machines with different network cards and different drivers are 
drastically slow with kernel versions 2.6.18 and 2.6.17 (stock Debian 
kernels), both initial connections and ongoing traffic. This problem does 
not show up when running 2.6.16 kernels or earlier (as far as I can tell) 
on either machine.

I'm flummoxed as to what to do about this. Any suggestions gratefully 
appreciated.

                                                               Faheem.