[ebtables] install ebtables in base image and install filter rules #2805
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- Add ebtables package, and install some filter rules: 1. ebtables -A FORWARD -d BGA -j DROP 2. ebtables -A FORWARD -p ARP -j DROP Basically, we let the ARP packets in the VLAN being forwarded by the ASIC, kernel gets a copy of these ARP packets and the forwarding from Kenerl gets dropped. So there is always only one copy of ARP/response in the VLAN. Signed-off-by: Ying Xie <ying.xie@microsoft.com>
lguohan
approved these changes
Apr 19, 2019
|
it needs SAI supports. |
prsunny
approved these changes
Apr 19, 2019
andriymoroz-mlnx
approved these changes
Apr 23, 2019
MichelMoriniaux
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to criteo-forks/sonic-buildimage
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May 28, 2019
…onic-net#2805) - Add ebtables package, and install some filter rules: 1. ebtables -A FORWARD -d BGA -j DROP 2. ebtables -A FORWARD -p ARP -j DROP Basically, we let the ARP packets in the VLAN being forwarded by the ASIC, kernel gets a copy of these ARP packets and the forwarding from Kenerl gets dropped. So there is always only one copy of ARP/response in the VLAN. Signed-off-by: Ying Xie <ying.xie@microsoft.com>
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- What I did
Basically, we let the ARP packets in the VLAN being forwarded by the ASIC,
kernel gets a copy of these ARP packets and the forwarding from Kenerl gets
dropped. So there is always only one copy of ARP/response in the VLAN.
Signed-off-by: Ying Xie ying.xie@microsoft.com
- Dependencies
- General information
This PR changes how SONiC handles ARP/response packet in VLAN. All vendor SAIs should move to SAI head version v1.3.7 (tag) or later, and make sure that trap action 'copy' is supported.
- How to verify it