Allow specifying static IPv6 gateways (#2710)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9569 3c298f89-4303-0410-b956-a3cf2f4a3e73

docs/network.tex

@@ -159,4 +159,5 @@ config interface     "lan"
     option ifname    "eth0"
     option proto     "static"
     option ip6addr    "fe80::200:ff:fe00:0/64"
+    option ip6gw     "2001::DEAF:BEE:1"
 \end{Verbatim}

package/base-files/files/lib/network/config.sh

@@ -150,12 +150,14 @@ setup_interface() {
 			[ -z "$ipaddr" -o -z "$netmask" ] && [ -z "$ip6addr" ] && return 1
 			
 			config_get gateway "$config" gateway
+			config_get ip6gw "$config" ip6gw
 			config_get dns "$config" dns
 			config_get bcast "$config" broadcast
 			
 			[ -z "$ipaddr" ] || $DEBUG ifconfig "$iface" "$ipaddr" netmask "$netmask" broadcast "${bcast:-+}"
 			[ -z "$ip6addr" ] || $DEBUG ifconfig "$iface" add "$ip6addr"
 			[ -z "$gateway" ] || $DEBUG route add default gw "$gateway"
+			[ -z "$ip6gw" ] || $DEBUG route -A inet6 add default gw "$ip6gw"
 			[ -z "$dns" ] || {
 				for ns in $dns; do
 					grep "$ns" /tmp/resolv.conf.auto 2>/dev/null >/dev/null || {