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added script to simulate network failure scenarios and restore original settings

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This commit is contained in:
Jonas Bonér 2011-03-25 16:09:44 +01:00
parent 5a9bfe9053
commit 0d23cf157a
1 changed files with 31 additions and 0 deletions
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31
scripts/ip-mod.sh Executable file
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#!/bin/sh
# flush rules
ipfw del pipe 1
ipfw del pipe 2
ipfw -q -f flush
ipfw -q -f pipe flush
if [ "$1" == "" ]; then
echo "Options: ip-mod.sh slow"
echo " ip-mod.sh block"
echo " ip-mod.sh reset"
echo " ip-mod.sh restore"
exit
elif [ "$1" == "restore" ]; then
echo "restoring normal network"
exit
elif [ "$1" == "slow" ]; then
# simulate slow connection <to specific hosts>
echo "enabling slow connection"
ipfw add pipe 1 ip from any to any
ipfw add pipe 2 ip from any to any
ipfw pipe 1 config bw 60KByte/s delay 350ms
ipfw pipe 2 config bw 60KByte/s delay 350ms
elif [ "$1" == "block" ]; then
echo "enabling blocked connections"
ipfw add 1 deny tcp from any to any 1024-65535
elif [ "$1" == "reset" ]; then
echo "enabling reset connections"
ipfw add 1 reset tcp from any to any 1024-65535
fi