routing table

from 192.168.1.x to 192.168.123.x

root@EbMajor:~# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         192.168.123.254 0.0.0.0         UG    0      0        0 eth0
192.168.1.0     *               255.255.255.0   U     0      0        0 br-lan
192.168.123.0   *               255.255.255.0   U     0      0        0 eth0

kernel device tree makefile

arch/arm/boot/dts/Makefile
dtb-$(CONFIG_ARCH_AT91) += at91rm9200ek.dtb