dhcpcd-discuss

Daniel, update your OS and try again.

I'm running current raspbian buster and it HAD older dhcpcd but I did an 
apt-get upgrade and NOW:

pi@rpi1909Ty:~ $ dhcpcd --version
dhcpcd 8.1.1
Copyright (c) 2006-2019 Roy Marples
Compiled in features: INET ARP ARPing IPv4LL INET6 DHCPv6 AUTH

Linux 4.19.75+ #1270 Tue Sep 24 18:38:54 BST 2019 armv6l
PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"

On 11/14/2019 9:12 AM, Roy Marples wrote:
> Hi Daniel
>
> On 14/11/2019 13:29, Daniel Huhardeaux wrote:
> > I have an Raspi3 running raspbian/buster. dhcpcd version is 7.0.8 
> > Network uses ipv4 and ipv6.
>
> Raspbian should consider upgrading to dhcpcd-8, I don't really support 
> older versions much.
>
> > I want to run a firewall script as soon as an interface (eth0 and 
> > wlan0) get's IP's (ipv4 and ipv6). I installed my script
> > /lib/dhcpcd/dhcpcd-hooks/99-startFW which contains
>
> You should install it as /etc/dhcpcd.exit-hook
>
> > #
> > PATHtoFW=/etc/network/if-post-up.d/
> >
> > case $reason in
> >          BOUND)
> >                $PATHtoFW/sfw4 ${interface}
> >                ;;
> >          BOUND6)
> >                $PATHtoFW/sfw6 ${interface}
> >                ;;
> > esac
> >
> > but the scripts are not executed :(
> >
> > How can I get this work ?
>
> BOUND is only set initally.
> You are missing other important DHCP states such as REBIND or RENEW.
> Also Router Advertisments don't even have states which you're missing.
>
> Try this instead
>
> PATHtoFW=/etc/network/if-post-up.d
>
> if $if_up; then
>      case "$protocol" in
>          dhcp|ipv4ll) "$PATHtoFW/sfw4" "$interface";;
>          ra|dhcp6|static6) "$PATHtoFW/sfw6" "$interface";;
>      esac
> fi
>
> Good luck!
>
> Roy