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selftests: disable rp_filter for icmp_redirect.sh 

h1 is initially configured to reach h2 via r1 rather than the
more direct path through r2. If rp_filter is set and inherited
for r2, forwarding fails since the source address of h1 is
reachable from eth0 vs the packet coming to it via r1 and eth1.
Since rp_filter setting affects the test, explicitly reset it.

Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2020-08-17 09:43:33 -06:00 committed by David S. Miller
parent 7f9bf6e824
commit bcf7ddb018
1 changed files with 2 additions and 0 deletions
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2
tools/testing/selftests/net/icmp_redirect.sh
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@ -180,6 +180,8 @@ setup()
;;
r[12]) ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1
ip netns exec $ns sysctl -q -w net.ipv4.conf.all.send_redirects=1
ip netns exec $ns sysctl -q -w net.ipv4.conf.default.rp_filter=0
ip netns exec $ns sysctl -q -w net.ipv4.conf.all.rp_filter=0
ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1
ip netns exec $ns sysctl -q -w net.ipv6.route.mtu_expires=10