> brctl setfd br0 1
> brctl sethello br0 1
These should be zero, if you're following my howto I updated it about a week
ago to reflect this. Not that this will fix your problem, it's only a minor
> tunctl -u root
> /sbin/ifconfig tap0 0.0.0.0 promisc up
> brctl addif br0 tap0
> route add default gw $GW_IP
> What should i do after this point?
Now you need to launch a UML instance and configure its eth0 device using
ifconfig from within the session, and set the gateway.
This page should help: http://edeca.net/articles/bridging/start-uml.html
Specifically you're looking for the "eth0=tuntap,uml-conn0" added to your
commandline. What goes in place of "uml-conn0" is probably "tap0" but seems
you don't specify a name when in your "tunctl" command when you create the
device I cannot say for sure.