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authorLukas Nykryn <lnykryn@redhat.com>2016-10-30 17:26:29 +0100
committerLukáš Nykrýn <lnykryn@redhat.com>2016-10-31 14:20:33 +0100
commit6a593a24130421689ea8056626cb2bb07d89d947 (patch)
tree14c3fa9a5e36b07ef5929e841be6e2ea19c1cc61
parent3b9c49f08092e2d38ddf6bbb5257b1688851e17c (diff)
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ifup-aliases: send gratuitous ARPs when adding addresses
-rwxr-xr-xsysconfig/network-scripts/ifup-aliases6
1 files changed, 6 insertions, 0 deletions
diff --git a/sysconfig/network-scripts/ifup-aliases b/sysconfig/network-scripts/ifup-aliases
index 7bf2327e..ad44964b 100755
--- a/sysconfig/network-scripts/ifup-aliases
+++ b/sysconfig/network-scripts/ifup-aliases
@@ -277,6 +277,12 @@ 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
+ /sbin/arping -q -A -c 1 -I ${parent_device} ${IPADDR}
+ ( sleep 2; /sbin/arping -q -U -c 1 -I ${parent_device} ${IPADDR} ) > /dev/null 2>&1 < /dev/null &
+ fi
+
! is_false "$IPV6INIT" && \
/etc/sysconfig/network-scripts/ifup-ipv6 ${DEVICE}