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[ebtables] Add multicast drop rule to ebtables (#18064)

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Adding rule to ebtables to drop multicast packets in kernel. This was
done to address a bug where NS packets were flooding ports with
duplicate packets.

Signed-off-by: Nikola Dancejic <ndancejic@microsoft.com>
This commit is contained in:
Nikola Dancejic 2024-02-27 13:11:58 -08:00 committed by mssonicbld
parent 612407a9bd
commit 32ea447333
1 changed files with 1 additions and 0 deletions
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files/image_config/ebtables/ebtables.filter.cfg
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@ -8,4 +8,5 @@
-A FORWARD -d BGA -j DROP -A FORWARD -d BGA -j DROP
-A FORWARD -p ARP -j DROP -A FORWARD -p ARP -j DROP
-A FORWARD -p 802_1Q --vlan-encap ARP -j DROP -A FORWARD -p 802_1Q --vlan-encap ARP -j DROP
-A FORWARD -d Multicast -j DROP