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Change global arp ignore level from "check ip within same subnet" to "all reply"

Open irene-pan1202 opened this issue 10 months ago • 4 comments

Why I did it

arp_ignore has different modes for sending replies in response to received ARP requests that resolve the local target IP address. Due to the strict settings of the arp_ignore global configuration, there are more restrictions.

Work item tracking

support a new field that allows dynamic modification of arp_ignore for different interfaces. https://github.com/sonic-net/sonic-swss/issues/3122

How I did it

Change global arp ignore level from "check ip within same subnet" to "all reply".

How to verify it

admin@sonic:/$ sudo sysctl -a | grep all.arp_ignore
net.ipv4.conf.all.arp_ignore = 0

Which release branch to backport (provide reason below if selected)

  • [ ] 201811
  • [ ] 201911
  • [ ] 202006
  • [ ] 202012
  • [ ] 202106
  • [ ] 202111
  • [ ] 202205
  • [ ] 202211
  • [ ] 202305

Tested branch (Please provide the tested image version)

  • [ ]
  • [ ]

Description for the changelog

Link to config_db schema for YANG module changes

A picture of a cute animal (not mandatory but encouraged)

irene-pan1202 avatar Apr 24 '24 07:04 irene-pan1202

CLA Signed

The committers listed above are authorized under a signed CLA.

  • :white_check_mark: login: irene-pan1202 (718c5b29c15df6e1c014f2aeba543e2b5d920ffa)

/azp run Azure.sonic-buildimage

mssonicbld avatar Apr 25 '24 05:04 mssonicbld

Azure Pipelines successfully started running 1 pipeline(s).

azure-pipelines[bot] avatar Apr 25 '24 05:04 azure-pipelines[bot]

Can you please share the motivation of this PR?

prsunny avatar Apr 29 '24 17:04 prsunny