George Shuklin <george.shuk...@gmail.com> wrote: > It there any way to react on changes in arp table (except for constant > polling)? I want to reset all TCP connection with directly connected > IP which have changed MAC address. I google a lot but found none.
> Why this is needed: we have corosync/pacemaker HA cluster which moves > IP address between servers. There are many 'sleeping' clients which > waits for data on open connections, and those connections are most of > the time idle. If IP has been moved, I want all clients to get RST > ASAP upon receiving grace ARP from the new host. > Do you know any way to react on mac change? Those events should be visible via netlink, libnl. Check this discution on linuxquestions.org: https://www.linuxquestions.org/questions/linux-software-2/need-program-to-get-arp-table-changes-via-netlink-socket-4175610380/ S° -- Sigmentation fault. Core dumped.
