自带的配置有问题，会卡在一个地方，并且有个 Python 在后台运行最终导致内存爆满。（支持 IP v6） ref https://github.com/DmitriyLyalyuev/DotFiles/blob/master/.grc/conf.ifconfig

conf.ifconfig

# number
regexp=\d+(\.\d+)?
colours=white
=======
# ip
regexp=\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}
colours=magenta
=======
# hwaddr
regexp=(\d|[A-Fa-f])+(\:(\d|[A-Fa-f])+)+
colours=yellow
=======
# size
regexp=\d+(\.\d+)?\s(K|M)b
colours=yellow
=======
# interface
regexp=(([a-z]{3}\d)|lo)
colours=green