[VS] ARP packets are being dropped on the VS Image When used as a L2 device

[vivekrnv]

Description

Steps to reproduce the issue:

1. Topology: HA <-> Eth0, HB <-> Eth4
2. config vlan add 10
3. config vlan member add 10 Ethernet0 -u
4. config vlan member add 10 Ethernet4 -u
5. Assign IP addresses in the same network to HA & HB
6. Ping HB from HA

Describe the results you received:

• ARP request is being dropped by the VS
• This is because of the ebtable rules configured.

These rules might be required on the real HW but these shouldn't be there for VS

-A FORWARD -p ARP -j DROP
-A FORWARD -p 802_1Q --vlan-encap ARP -j DROP

Describe the results you expected:

ARP shouldn't be dropped

Work-Around:

To allow ARP frames forwarded via the switch, please, remove corresponding ebtables entries:

sudo ebtables -D FORWARD -p 802_1Q --vlan-encap ARP -j DROP
sudo ebtables -D FORWARD -p ARP -j DROP

[prsunny]

This can be fixed by bypassing for the KVM image. Can be checked for platform in build_debian.sh or docker_image_ctl.j2. Request help from community.