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local route entry is present for the disabled link

Open tamilselvanmsr opened this issue 1 year ago • 1 comments

I am currently looking on the Linux networking stack behavior on where the ping is successful on disabled interface/link. I could see that the "local route entry" is present in the "ip route show table local" even I administratively disabled the link.

Usually we should not expect the ping replies for the disabled interfaces.

I've tried to disable the link using ip commands, ifconfig and Network Manager as well. Also tried to set rp_filter as 0 but nothing works. The ping is failed only when I remove the local route entry from "local route table".

Why we are maintaining the local route entry for the disabled link? Is this fixed on any latest kernel releases? if yes, please share a patch/commit. Many Thanks.

tamilselvanmsr avatar Mar 27 '25 22:03 tamilselvanmsr

Hey @tamilselvanmsr, how does this relate to EtherateMT? Can you provide steps to reproduce?

jwbensley avatar Apr 04 '25 13:04 jwbensley