Add hooks for when link goes up and down

[Joibel]

When the link has been established optionally run a supplied 'up-hook'
and when it goes down run 'down-hook'.

Allows simple interaction with other subsystems, in my case
reconfiguring proxies.

[pschichtel]

I'm using ppp's if-up and if-down scripts for this purpose. What would be the advantage of this?

[Tatsh]

I'm using ppp's if-up and if-down scripts for this purpose.

How do you do that?

[DimitriPapadopoulos]

How do you do that?

https://github.com/adrienverge/openfortivpn/wiki#using-pppd-ip-up--ip-down-scripts

[DimitriPapadopoulos]

That said, I think it might be worth setting routing and DNS in a separate script called by openfortivpn, ideally vpnc-scripts. When needed, it can be replaced by alternate scripts such as vpn-slice or a custom script. We would get IPv6 support and better DNS as a bonus.

I just don't have the time to change openfortivpn myself these days.

[Joibel]

Yeah, if-up and if-down do this, so lets abandon this.

[Tatsh]

@pschichtel omitting the details, can you share your scripts that set up DNS with the pppd hooks?

[pschichtel]

@Tatsh that's my /etc/ppp/ip-up.d/* script

#!/bin/bash

routes=(...)
dns_servers=(...)
search_domains=(...)

resolvectl dns "$1" "${dns_servers[@]}"
resolvectl domain "$1" "${search_domains[@]}"

for route in "${routes[@]}"
do
    ip route add "$route" dev "$1"
done

[Tatsh]

@Tatsh that's my /etc/ppp/ip-up.d/* script

#!/bin/bash

routes=(...)
dns_servers=(...)
search_domains=(...)

resolvectl dns "$1" "${dns_servers[@]}"
resolvectl domain "$1" "${search_domains[@]}"

for route in "${routes[@]}"
do
    ip route add "$route" dev "$1"
done

So all your routes and DNS etc are static and known beforehand?

I would like to make the same kind of thing but I want to get it from the VPN.