Slight hiccup for etch users with the new linux-image-2.6.24-etchnhalf

[John Winters <john@sinodun.org.uk>]

I put the new etch-and-a-half kernel on my N2100 today to cure its
slight NFS problems.  All seemed well at first until I realised that it
was no longer functioning as a router.

After a bit of research I discovered the problem.  There's an
outstanding bug in procps in etch (fixed in lenny) which doesn't
manifest itself as long as you're running 2.6.18 but does once you
switch to 2.6.24.

To fix it, edit /etc/sysctl.conf and change:

net.ipv4.conf.default.forwarding=1

to

net.ipv4.ip_forward=1

I mention it just to save anyone else from having to do the same research.

Cheers,
John