diff options
Diffstat (limited to 'package/busybox/udhcpc.script')
| -rwxr-xr-x | package/busybox/udhcpc.script | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/package/busybox/udhcpc.script b/package/busybox/udhcpc.script index 0196351cd5..ec4d9f6185 100755 --- a/package/busybox/udhcpc.script +++ b/package/busybox/udhcpc.script @@ -61,7 +61,23 @@ case "$1" in wait_for_ipv6_default_route fi - if [ -n "$router" ] ; then + # RFC3442: If the DHCP server returns both a Classless + # Static Routes option and a Router option, the DHCP + # client MUST ignore the Router option. + if [ -n "$staticroutes" ]; then + echo "deleting routers" + route -n | while read dest gw mask flags metric ref use iface; do + [ "$iface" != "$interface" -o "$gw" = "0.0.0.0" ] || \ + route del -net "$dest" netmask "$mask" gw "$gw" dev "$interface" + done + + # format: dest1/mask gw1 ... destn/mask gwn + set -- $staticroutes + while [ -n "$1" -a -n "$2" ]; do + route add -net "$1" gw "$2" dev "$interface" + shift 2 + done + elif [ -n "$router" ] ; then echo "deleting routers" while route del default gw 0.0.0.0 dev $interface 2> /dev/null; do : |