dhcpcd-discuss

On 31/01/2018 21:18, Sven Kirmess wrote:
> I run Bering-uClibc 6.1.1 with dhcpcd 6.11.5 and Shorewall 5.1.9.
>
> dhcpcd configures an IPv6 address on ppp0 from router advertisments, 
> then it requests a /60 network with DHCPv6-PD and assigns IPv6 to 
> internal interfaces.
>
> Shorewall6 should be reloaded when the IP of an interface changes.
>
> I'm trying to figure out what the best event in "dhcpcd-hooks" is to 
> reload Shorewall6. Is there an event for "I got a different /60 network 
> with DHCPv6-PD and all interfaces are assigned new IPs"?

Don't beat around the bush, just reload it on actions.

case "$reason" in
	INFORM6|BOUND6|RENEW6|REBIND6|REBOOT6) reload_shorewall;;
esac

I don't know Shorewall, or Linux firewalls for that matter.
But NPF on NetBSD allows reloading without terminating existing 
connections which is probably what you need.

Roy