You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
24 lines
876 B
24 lines
876 B
From 38180271c587f3053710bf38a6cda829d3a7c00f Mon Sep 17 00:00:00 2001 |
|
From: Harald Hoyer <harald@redhat.com> |
|
Date: Tue, 18 Aug 2015 12:07:41 +0200 |
|
Subject: [PATCH] network/ifup.sh: arping for static IPv4 addresses |
|
|
|
--- |
|
modules.d/40network/ifup.sh | 4 ++++ |
|
1 file changed, 4 insertions(+) |
|
|
|
diff --git a/modules.d/40network/ifup.sh b/modules.d/40network/ifup.sh |
|
index ab87578e..8a5a6065 100755 |
|
--- a/modules.d/40network/ifup.sh |
|
+++ b/modules.d/40network/ifup.sh |
|
@@ -163,6 +163,10 @@ do_static() { |
|
ip addr add $ip/$mask ${srv:+peer $srv} dev $netif |
|
wait_for_ipv6_dad $netif |
|
else |
|
+ if ! arping -f -q -D -c 2 -I $netif $ip; then |
|
+ warn "Duplicate address detected for $ip for interface $netif." |
|
+ return 1 |
|
+ fi |
|
ip addr flush dev $netif |
|
ip addr add $ip/$mask ${srv:+peer $srv} brd + dev $netif |
|
fi
|
|
|