Re: How to run script on network address change?

Reply: Rozhuk Ivan : "Re: How to run script on network address change?"
In reply to: Rozhuk Ivan : "How to run script on network address change?"
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From: Ian Lepore <ian_at_freebsd.org>
Date: Sun, 20 Jun 2021 14:42:46 UTC

On Sun, 2021-06-20 at 16:52 +0300, Rozhuk Ivan wrote:
> Hi!
> 
> 
> I have FreeBSD 13@amd64 router with DHCP client on uplink.
> 
> How to run script on IP address change?
> 
> 
> I do not see events from devd, only:
> !system=IFNET subsystem=em3 type=LINK_DOWN
> !system=IFNET subsystem=em3 type=LINK_UP
> 
> 

You could use /etc/dhclient-exit-hooks script to take action after an
IP address is bound.  See the manpage for dhclient-script for more
info.

-- Ian