netdev - [PATCH net-next 1/2] selftests: Disable dad for ipv6 in fcnal-test.sh

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Message-Id: <20250910025828.38900-1-dsahern@kernel.org>
Date: Tue,  9 Sep 2025 20:58:27 -0600
From: David Ahern <dsahern@...nel.org>
To: netdev@...r.kernel.org
Cc: kuba@...nel.org,
	linux-kselftest@...r.kernel.org,
	shuah@...nel.org,
	David Ahern <dsahern@...nel.org>
Subject: [PATCH net-next 1/2] selftests: Disable dad for ipv6 in fcnal-test.sh

Constrained test environment; duplicate address detection is not needed
and causes races so disable it.

Signed-off-by: David Ahern <dsahern@...nel.org>
---
 tools/testing/selftests/net/fcnal-test.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index 69941520e8e5..068379a79651 100755
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -424,6 +424,8 @@ create_ns()
 	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
 	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
 	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.accept_dad=0
 }
 
 # create veth pair to connect namespaces and apply addresses.
-- 
2.43.0