diff options
Diffstat (limited to 'examples/udhcp/simple.script')
| -rwxr-xr-x | examples/udhcp/simple.script | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/examples/udhcp/simple.script b/examples/udhcp/simple.script index 2a917eb6c..e4c1f2d76 100755 --- a/examples/udhcp/simple.script +++ b/examples/udhcp/simple.script @@ -29,8 +29,14 @@ case "$1" in metric=0 for i in $router ; do echo "Adding router $i" - route add default gw $i dev $interface metric $metric - : $(( metric += 1 )) + if [ "$subnet" = "255.255.255.255" ]; then + # special case for /32 subnets: + # /32 instructs kernel to always use routing for all outgoing packets + # (they can never be sent to local subnet - there is no local subnet for /32). + # Used in datacenters, avoids the need for private ip-addresses between two hops. + ip route add $i dev $interface + fi + route add default gw $i dev $interface metric $((metric++)) done fi |