On Fri, Oct 6, 2023 at 2:04 PM Balaji G <gbalaji...@gmail.com> wrote: > > 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 ??
I think that's now Poettering: https://github.com/systemd/systemd/blob/main/src/libsystemd-network/sd-ipv4acd.c#L302 Jeff
