Arch Linux

OpusOne

Member

Registered: 2023-05-31

Posts: 165

Network Manager Script Dispatcher keeps kicking in?

Hi, I noticed that I was getting this in the journal, about every 5 min:

Started Network Manager Script Dispatcher Service.
systemd[1]: Starting Network Manager Script Dispatcher Service...
NetworkManager[967]: <info>  [1740859070.0843] dhcp6 (eno1): state changed new lease, address=xxxxxx

Is that normal? What is causing this? Thanks!

-thc

Member

Registered: 2017-03-15

Posts: 859

Re: Network Manager Script Dispatcher keeps kicking in?

Normal in regard to getting started when the DHCP lease gets renewed - in my case every two hours.

Uncommon is your short DHCP lease time of 5 minutes.

OpusOne

Member

Registered: 2023-05-31

Posts: 165

Re: Network Manager Script Dispatcher keeps kicking in?

Ok, then it may have something to do with my router. Haven't pinpointed it yet. The only thing I can say is that I'm on IPv6, if that makes a difference.

OpusOne

Member

Registered: 2023-05-31

Posts: 165

Re: Network Manager Script Dispatcher keeps kicking in?

It seems to be related to having SLAAC enabled. I'm still not ultra familiar with IPv6, so that's one thing I need to understand.

-thc

Member

Registered: 2017-03-15

Posts: 859

Re: Network Manager Script Dispatcher keeps kicking in?

I don't want to bore you to death but a little overview first.

While IPv4 mainly uses two methods for configuration (ignoring Microsoft's APIPA) - manual and DHCP - IPv6 uses seven. Two of them are SLAAC (stateless address auto-configuration)  and SLAAC with DNS via router advertisement which are completely dependent on your router and it's configuration. My router also provides SLAAC and my clients accept it but doesn't show your strange behavior. Double check the IPv6 configuration options of your router.