From: Amit Cohen <[email protected]>
Currently, unicast ARP requests/NS packets are replied by bridge when
suppression is enabled, then they are also forwarded, which results two
replicas of ARP reply/NA - one from the bridge and second from the target.
The purpose of ARP/ND suppression is to reduce flooding in the broadcast
domain, which is not relevant for unicast packets. In addition, the use
case of unicast ARP/NS is to poll a specific host, so it does not make
sense to have the switch answer on behalf of the host.
Forward ARP requests/NS packets and prevent the bridge from replying to
them.
Patch set overview:
Patch #1 prevents unicast ARP/NS packets from being suppressed by bridge
Patch #2 adds test cases for unicast ARP/NS with suppression enabled
Amit Cohen (2):
net: bridge: Prevent unicast ARP/NS packets from being suppressed by
bridge
selftests: test_bridge_neigh_suppress: Test unicast ARP/NS with
suppression
net/bridge/br_arp_nd_proxy.c | 7 +
.../net/test_bridge_neigh_suppress.sh | 125 ++++++++++++++++++
2 files changed, 132 insertions(+)
--
2.47.0
