dhcpcd-discuss

Hi Carlos

On 19/09/2019 15:06, Carlos Ferreira wrote:
> I'm having some issues while using dhcpcd. Since my ISP is very picky,
> it seems that the Vendor Class (option 16) and other options inserted
> into the DHCP Solicit messages is causing some issues.
> Also, it seems that dhcpcd sends some extra options
>   - 82 -> SOL_MAX_RT
>   - 83 -> INF_MAX_RT
>   - 20 -> Reconfigure Accept
>
> So, my question is, how can I prevent dhcpcd from sending these options?

In the current versions you need to re-define the option to stop the 
automatic request.

So put this in dhcpcd.conf, near the top:
define6 82      uint32          sol_max_rt
define6 83      uint32          inf_max_rt

But that's a bit cumbersome, so I've made this commit:
https://roy.marples.name/cgit/dhcpcd.git/commit/?id=793289f66fa6f4f6d1462fad249d1cc3ae90faf2

So you can now do this:
nooption dhcp6_sol_max_rt, dhcp6_inf_max_rt

For not sending the reconf accept option, you would need to re-compile 
without the AUTH option or ..... take these two commits:
https://roy.marples.name/cgit/dhcpcd.git/commit/?id=d5700a48edf7006369f766d225e70bbca3d8055c
https://roy.marples.name/cgit/dhcpcd.git/commit/?id=ad5ede468447d15f573a5e0f99f819562f808998

Which allow this
nooption dhcp6_reconfigure_accept

Roy