I have followed few pages of setting up the Hurd's network through qemu, however it seems that eth0 is never configured on boot so the following command breaks because no eth0 device has been configured.
# settrans -afgp /servers/socket/2 /hurd/pfinet -i eth0 -a 10.0.2.15 -g 10.0.2.2 -m 255.255.255.0