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authorDavid Kaspar [Dee'Kej] <dkaspar@redhat.com>2017-07-10 18:16:35 +0200
committerDee'Kej <deekej@linuxmail.org>2017-07-14 17:40:45 +0200
commit3f7368cf2615978fc4b89b63613ada20bafb6124 (patch)
tree24f73bb4a501d63ea9793a801aa2e5aa0b94a3d9 /sysconfig/network-scripts
parentf2004639bd68b11e3eeb206afc4416ea434cc087 (diff)
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ARPUPDATE introduced
The ARPUPDATE option has been introduced. It defaults to 'yes'. By setting the ARPUPDATE to 'no', administrator can disable updating neighbouring computers with ARP information about current NIC. This is especially needed when using LVS Load Balancing with Direct routing enabled. Resolves: RHBZ#1440888
Diffstat (limited to 'sysconfig/network-scripts')
-rwxr-xr-xsysconfig/network-scripts/ifup-aliases4
-rwxr-xr-xsysconfig/network-scripts/ifup-eth2
-rw-r--r--sysconfig/network-scripts/network-functions6
3 files changed, 10 insertions, 2 deletions
diff --git a/sysconfig/network-scripts/ifup-aliases b/sysconfig/network-scripts/ifup-aliases
index 2e21e6de..ead89ceb 100755
--- a/sysconfig/network-scripts/ifup-aliases
+++ b/sysconfig/network-scripts/ifup-aliases
@@ -127,6 +127,7 @@ eval ` (
echo default_GATEWAY=$GATEWAY\;;
echo default_NO_ALIASROUTING=$NO_ALIASROUTING\;;
echo default_ARPCHECK=$ARPCHECK\;;
+ echo default_ARPUPDATE=$ARPUPDATE\;;
) `
[ -z "$default_GATEWAY" ] && default_GATEWAY=$network_GATEWAY
@@ -141,6 +142,7 @@ function ini_env ()
NO_ALIASROUTING=$default_NO_ALIASROUTING
ONPARENT=""
ARPCHECK=$default_ARPCHECK
+ ARPUPDATE=$default_ARPUPDATE
}
function is_default_gateway ()
@@ -276,7 +278,7 @@ function new_interface ()
/sbin/ip addr add ${IPADDR}/${PREFIX} brd ${BROADCAST} dev ${parent_device} label ${DEVICE}
# update ARP cache of neighboring computers:
- if [ "${REALDEVICE}" != "lo" ]; then
+ if ! is_false "${ARPUPDATE}" && [ "${REALDEVICE}" != "lo" ]; then
/sbin/arping -q -A -c 1 -I ${parent_device} ${IPADDR}
( sleep 2; /sbin/arping -q -U -c 1 -I ${parent_device} ${IPADDR} ) > /dev/null 2>&1 < /dev/null &
fi
diff --git a/sysconfig/network-scripts/ifup-eth b/sysconfig/network-scripts/ifup-eth
index 12cb2a6c..5dd68161 100755
--- a/sysconfig/network-scripts/ifup-eth
+++ b/sysconfig/network-scripts/ifup-eth
@@ -270,7 +270,7 @@ else
fi
# update ARP cache of neighboring computers
- if [ "${REALDEVICE}" != "lo" ]; then
+ if ! is_false "${arpupdate[$idx]}" && [ "${REALDEVICE}" != "lo" ]; then
/sbin/arping -q -A -c 1 -I ${REALDEVICE} ${ipaddr[$idx]}
( sleep 2;
/sbin/arping -q -U -c 1 -I ${REALDEVICE} ${ipaddr[$idx]} ) > /dev/null 2>&1 < /dev/null &
diff --git a/sysconfig/network-scripts/network-functions b/sysconfig/network-scripts/network-functions
index e7be1120..b623b0c1 100644
--- a/sysconfig/network-scripts/network-functions
+++ b/sysconfig/network-scripts/network-functions
@@ -188,6 +188,7 @@ expand_config ()
netmask[$i]=$(eval echo '$'NETMASK$idx)
broadcast[$i]=$(eval echo '$'BROADCAST$idx)
arpcheck[$i]=$(eval echo '$'ARPCHECK$idx)
+ arpupdate[$i]=$(eval echo '$'ARPUPDATE$idx)
if [ "${prefix[$i]}x" != "x" ]; then
val=$(/bin/ipcalc --netmask "${ipaddr[$i]}/${prefix[$i]}")
@@ -214,6 +215,11 @@ expand_config ()
arpcheck[$i]=${arpcheck[$i],,*}
fi
+ if [ "${arpupdate[$i]}x" != "x" ]; then
+ arpupdate[$i]=${arpupdate[$i]##ARPUPDATE=}
+ arpupdate[$i]=${arpupdate[$i],,*}
+ fi
+
i=$((i+1))
done