NetworkConfiguration
[feature request] hook script to restart radvd when prefix is changed
Hi friends,
can you do this for radvd.service when the prefix is changed? I'm using the way below, but I don't know if it's the best way
/usr/lib/dhcpcd/dhcpcd-hooks/70-radvd.conf
case "$reason" in (DELEGATED6) /bin/systemctl restart radvd.service exit 0 ;; esac
Thank you very much
Why do you need this? radvd is capable of listening to interface and address changes. https://github.com/radvd-project/radvd/blob/master/netlink.c#L210
doesn't seem to work properly.
The provider provides dynamic prefix and changes it a few times a day.
when the prefix changes, it doesn't send the old prefix deprecation to the devices, even with this option enabled in radvd.conf , and the devices get too many addresses.
not even reloading radvd the prefix deprecation is sent. it is necessary to stop and start.
this problem is described here: https://github.com/radvd-project/radvd/issues/91
Ouch, that sucks!
I do not want to put this into dhcpcd because restarting a RA service will cause it to announce that it's no longer a default router and will break existing connections to the outside.
One option, albiet a touch extreme, would be to put a decent RA server in to replace radvd - rtadvd that comes with the BSD platforms works well, but that does mean changing the OS and probably a touch overkill. But I can vouch for NetBSD being up to the task.
Another alternative would be something like this maybe? https://mdlayher.com/blog/corerad-a-new-ipv6-router-advertisement-daemon/
It doesn't have the feature you need, but it has rudimentary netlink support and they might be able to put your feature request in.
Hi Roy,
I've been using debian for 15 years. I will try to corad. Thank you very much. Hugs