64 lines
1.2 KiB
Plaintext
64 lines
1.2 KiB
Plaintext
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#!/bin/bash
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#
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# Maxim Krasnyansky <max_mk@yahoo.com>
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# $Id: reroute,v 1.3.2.1 2007/06/29 05:27:18 mtbishop Exp $
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#
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IP=/sbin/ip
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if [ $# -ne 3 ]; then
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echo "Usage: reroute option Source_IP Destination_IP"
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echo "Options:"
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echo " -m - Move route Source_IP -> Destination_IP to table 100."
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echo " Configure source based routing."
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echo " -r - Restore route Source_IP -> Destination_IP to default table."
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echo " Delete source based routing."
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exit 1;
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fi
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MODE=$1
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IP_S=$2
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IP_D=$3
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# Get original route
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ROUTE=`$IP route get $IP_D from $IP_S | grep dev`
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# Parse route
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set - $ROUTE
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while [ "$1" != "" ]; do
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if [ "$1" = "src" ]; then
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shift
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O_SRC=$1
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fi
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if [ "$1" = "dev" ]; then
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shift
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O_DEV=$1
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fi
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if [ "$1" = "via" ]; then
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shift
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O_GW=$1
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fi
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shift
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done
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# Flush all routes, rules and cache for that IP
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$IP route flush $IP_D table all >/dev/null 2>&1
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$IP rule del from $IP_S to $IP_D >/dev/null 2>&1
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case $MODE in
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-m)
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# Add route via orig device to table 100
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$IP route add $ROUTE table 100 >/dev/null 2>&1
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# Add source based routing
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$IP rule add from $IP_S to $IP_D table 100 >/dev/null 2>&1
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;;
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-r)
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# Add route via orig device to defaul table
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$IP route add $ROUTE >/dev/null 2>&1
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;;
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esac
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exit 0
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