gentoo 6rd setting for sakura VPS (/etc/conf.d/net)

net

config_eth0="aaa.bbb.ccc.ddd/23"
routes_eth0="default via aaa.bbb.ccc.1"
dns_servers_eth0="210.224.163.4 210.224.163.3"

iptunnel_6rd="mode sit local aaa.bbb.ccc.ddd ttl 64"
config_6rd="2001:e41:xxxx:xxxx::1/32" # printf "2001:e41:%02x%02x:%02x%02x::1\n" aaa bbb ccc ddd
routes_6rd="::/0 via ::61.211.224.125 dev 6rd"
mtu_6rd="1280"

postup() {
	local retval=0
	if [ "${IFACE}" = "6rd" ] ; then
		ip tunnel 6rd dev 6rd 6rd-prefix 2001:e41::/32
		retval=$?
	fi
	return $retval
}