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Message too long is not always returned for MTU

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This commit is contained in:
Ycarus 2019-03-09 19:17:52 +01:00
parent dcb84d961c
commit 6252ad9413
1 changed files with 4 additions and 2 deletions
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6
openmptcprouter/files/bin/omr-mtu
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@ -5,7 +5,8 @@ INTERFACE="$1"
HOSTNAME="$2"
#count=$(ping -q -w 1 -M do -c 1 -s $PKT_SIZE -I $INTERFACE $HOSTNAME | grep -cE 'Message too long|100% packet loss')
count=$(ping -w 1 -M do -c 1 -s $PKT_SIZE -I $INTERFACE $HOSTNAME 2>&1 | grep -c 'Message too long')
#count=$(ping -w 1 -M do -c 1 -s $PKT_SIZE -I $INTERFACE $HOSTNAME 2>&1 | grep -c 'Message too long')
count=$(ping -w 1 -M do -c 1 -s $PKT_SIZE -I $INTERFACE $HOSTNAME 2>&1 | grep -cE 'Message too long|100% packet loss')
while [ $count -eq 1 ]; do
PKT_SIZE=$((PKT_SIZE - 1))
@ -13,7 +14,8 @@ while [ $count -eq 1 ]; do
exit 0
fi
#count=$(ping -q -w 1 -M do -c 1 -s $PKT_SIZE -I $INTERFACE $HOSTNAME | grep -cE 'Message too long|100% packet loss')
count=$(ping -w 1 -M do -c 1 -s $PKT_SIZE -I $INTERFACE $HOSTNAME 2>&1 | grep -c 'Message too long')
#count=$(ping -w 1 -M do -c 1 -s $PKT_SIZE -I $INTERFACE $HOSTNAME 2>&1 | grep -c 'Message too long')
count=$(ping -w 1 -M do -c 1 -s $PKT_SIZE -I $INTERFACE $HOSTNAME 2>&1 | grep -cE 'Message too long|100% packet loss')
done
printf "$((PKT_SIZE + 28))"