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selftests: forwarding: Add a test case for ARP decapsulation 

Verify that ARP packets are correctly decapsulated by the ingress VTEP
by removing the neighbours configured on both VLAN interfaces and
running a ping test.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2019-01-21 13:22:53 +00:00 committed by David S. Miller
parent 1538812e08
commit ca5ba1cbc9
1 changed files with 18 additions and 0 deletions
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18
tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh
View File

@ -93,6 +93,7 @@
ALL_TESTS="
ping_ipv4
arp_decap
"
NUM_NETIFS=6
source lib.sh
@ -465,6 +466,23 @@ ping_ipv4()
ping_test $h2 10.1.1.102 ": local->remote vid 20->vid 10"
}
arp_decap()
{
# Repeat the ping tests, but without populating the neighbours. This
# makes sure we correctly decapsulate ARP packets
log_info "deleting neighbours from vlan interfaces"
ip neigh del 10.1.1.102 dev vlan10
ip neigh del 10.1.2.102 dev vlan20
ping_ipv4
ip neigh replace 10.1.1.102 lladdr $(in_ns ns1 mac_get w2) nud noarp \
dev vlan10 extern_learn
ip neigh replace 10.1.2.102 lladdr $(in_ns ns1 mac_get w4) nud noarp \
dev vlan20 extern_learn
}
trap cleanup EXIT
setup_prepare