[artix-general] dhcpcd (daemon) + wpa_supplicant (daemon), with wireless bieng a failover support for wired

[Javier]

On 3/30/20 7:21 AM, Dudemanguy via artix-general wrote:
>> @dudemanguy, what special tweaks did you do to get the failover effect with those 2 daemons only?  I just modified the arch services to behave like the S6 ones, and I wasn't even close to get the failover effect...  And as mentioned, I also tried bonding in failover mode with really awful results before, so I sort of discarded that path, but perhaps that's what you do?  Any ways, I just failed with just the 2 daemons alone on an arch laptop.  For sure I'm missing something.
> 
> No special tricks here. I only use the wpa_supplicant daemon in s6 (no hooks or anything). The wpa_supplicant script has dhcpcd as a dependency so that one is always started as well. It seems to "just work" for me. If I plug in ethernet, that is preferred. If I leave it wireless, then it falls back on the wireless connection.

I just tried on the box where I installed artix-s6, and I got exactly the same behavior as on arch, :(  When enabling/starting only wpa_supplicant (which on wpa_supplicant-s6 depends on dhcpcd daemon), I then get both the wired and the wireless interfaces up, and both with dhcp lease and running...

Not sure if my almost default dhcpcd.conf is missing something:

% 'grep' '^[ \t]*[^#]' /etc/dhcpcd.conf 
hostname
duid
persistent
option rapid_commit
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
option interface_mtu
option ntp_servers
require dhcp_server_identifier
slaac private
noipv4ll

Not sure if there might be a dhcpcd option to prevent having all interfaces up, connected and passing traffic.  For now, by starting wpa_supplicant, then I get all interfaces passing traffic, no failover, :(  Not sure how you got that behavior by just launching wpa_supplicant (with the wireless interface set on /etc/s6/sv/wpa_supplicant-srv/conf)...

Thanks !

-- 
Javier

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