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Beginners Questions • Re: [Networking] Block unnecessary ARP

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I try to understand how it works and got some strange result. Current host is 10.10.1.1, some host in network 10.10.1.2, i have next rule:

Code:

table arp arp_filter{    chain input {        type filter hook input priority 0; policy drop;        oifname "ens54" arp daddr ip 10.10.1.2 accept        arp daddr ip 10.10.1.1 accept    }}
if i remove myself (10.10.1.1) it stop to work, even if i will use oifname "ens54" it doesnt work too. Why i need allow outgoing traffic to myself? What ifname is it use?
ether type arp log prefix "NFTA: ARP_OUT: " flags all
+
journalctl -f -k
shows only packets with 10.10.1.2

I totally dont understand what happening... Help pls...

Statistics: Posted by Kov — 2026-01-01 09:06



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