X-Git-Url: http://lab.mitty.jp/git/?a=blobdiff_plain;ds=sidebyside;f=iproute%2Fsetroute-rhel.sh;fp=iproute%2Fsetroute-rhel.sh;h=e88bdc64d4218b131c8af175a1e7eb529d604317;hb=8c804d83125c275fd3c5ef8e32b002e2f785a6b3;hp=0000000000000000000000000000000000000000;hpb=be2a37ed8f486b21416d8cd1dc1fbae3dea47c33;p=lab.git diff --git a/iproute/setroute-rhel.sh b/iproute/setroute-rhel.sh new file mode 100644 index 0000000..e88bdc6 --- /dev/null +++ b/iproute/setroute-rhel.sh @@ -0,0 +1,43 @@ +#!/bin/sh + +set -x + +IF="${1:?"usage: $0 [gateway] "}" +GATEWAY=$2 + +TID=`/sbin/ip addr show dev ${IF} | grep -w ${IF}: | cut -d : -f 1` + +if [ "${GATEWAY}" = "down" ]; then + # delete routing table and policy and exit + ## routing table is automatically flushed, so 'route flush' can be removed + /sbin/ip route flush table ${TID} + ## device has no longer any IP addr, so do not use IPADDR + /sbin/ip rule del table ${TID} priority ${TID} + /sbin/ip route flush cache + echo "remove routing table and policy for ${IF}" + exit +fi + + +# get IP address, network mask, default gateway info +IPADDR=`/sbin/ip addr show dev ${IF} | grep -w inet | cut -d t -f 2 | cut -d ' ' -f 2 | cut -d / -f 1` +NETWORK=`/sbin/ip route show dev ${IF} | grep -w ${IPADDR} | cut -d ' ' -f 1` + +if [ -z "${GATEWAY}" ]; then + GATEWAY=`/sbin/ip route show dev ${IF} | grep -w default | cut -d ' ' -f 3` +fi +if [ -z "${GATEWAY}" ]; then + GATEWAY=`/sbin/ip route | grep -w default | cut -d ' ' -f 3` + # this may add wrong default route especially on RHEL +fi + + +# set routing table +/sbin/ip route add ${NETWORK} dev ${IF} table ${TID} +/sbin/ip route add default via ${GATEWAY} dev ${IF} table ${TID} + +# set routing policy +/sbin/ip rule add from ${IPADDR} table ${TID} priority ${TID} + +/sbin/ip route flush cache +echo "add routing table and policy for ${IF} on table ${TID}"