[systemd-devel] networkd : ipv6 prefix delegation

Ede Wolf listac at nebelschwaden.de
Mon Sep 5 16:34:49 UTC 2022


Hello,

For a simple setup, I've tried to replace radvd with systemds 
IPv6SendRA=true.

Now the link supposed to send the RA of course has both a fixed local as 
well as fixed global (ULA) address. As it happens to be the default gw 
as well.

Since the local address is being configured manually, 
LinkLocalAddressing is consequently set to no


Now networkd complains, from the journal:

IPv6PrefixDelegation= is enabled but IPv6 link-local addressing is 
disabled. Disabling IPv6PrefixDelegation=.


Not sure what I am overlooking, but the SendRA is meant for other 
clients, not for this link. Otherwise I would have set IPv6AcceptRA to 
true, not IPv6SendRA.

What am I misinterpreting here?

Thanks

Ede


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