Hi, I am using "Debian GNU/Linux 11 (bullseye)" with kernel version 5.16.12. When i do a link up/down i don't see any Gratuitous ARP being sent.
# echo 1 > /proc/sys/net/ipv4/conf/eno5np0/arp_notify # ip link set down dev eno5np0 # ip link set up dev eno5np0 Captured all the packets via tcpdump & the tcpdump is not showing any Gratuitous ARP packets. But, with the same commands i could see the Gratuitous ARP being sent in Red hat.9.0 (Plow). So, please let me know if this is a specific scenario in Debian 11 ?? Thanks, Balaji