dhcpcd-discuss

Hi Daniel

On 21/06/2020 22:18, Daniel Albers wrote:
> I have dhcpcd set up to do DHCPv6 PD on a PPP interface. After updating
> from 9.0.2 to 9.1.2 dhcpcd was no longer able to acquire a prefix due
> to failing router solicitations.
>
> According to tcpdump no router solicitations are sent on the interface,
> despite dhcpcd printing "soliciting an IPv6 router" and strace showing
> correspondiing sendmsg() calls. I didn't have more time yet to dig
> deeper unfortunately.

Soliciting an IPv6 router has nothing to do with prefix delegation.
You're looking for lines like this:

re0: broadcasting REBIND6 (xid 0xd962d5), next in 1.0 seconds
re0: REPLY6 received from fe80::1

> Reverting to 9.0.2 fixes the issue and packets can be seen in tcpdump
> accordingly.
>
> My config:
>
> ipv6only
> nohook resolv.conf
> noipv6rs
> interface ppp0
>    ipv6rs
>    ia_pd 1 eth0/0/64

Could you add the word "debug" on a line by itself at the top please?
logfile /var/log/dhcpcd.log
may also help

And if you could post logs of dhcpcd-9.0.2 working and dhcpcd-9.1.2 not working 
that would be awesome :)

> Btw, how about enabling the GitHub issue tracker? It's quite decent.

I prefer this mailing list.

Roy