dhcpcd with fxp0 fails vs dhclient works

[Riccardo Mottola <riccardo.mottola%libero.it@localhost>]

Hi,

when I tried to install RC3, I had a problem with autoconfiguration of 
the fxp0 network interface not working. Fine, I assigned something 
static and it worked.
Now, I attach the laptop at work where I do need to use a dynamic IP.

I thought about using "dhcpcd" since apparently that's where the future 
goes, but it doesn't work.... I get apparently an IP address, but at the 
end the interface is down and cycles forever.

<...>
Sep  4 14:19:54 orthanc dhcpcd[1828]: fxp0: carrier lost
Sep  4 14:19:54 orthanc dhcpcd[1828]: fxp0: deleting host route to 
10.10.0.169 via 127.0.0.1
Sep  4 14:19:54 orthanc dhcpcd[1828]: fxp0: deleting route to 10.10.0.0/24
Sep  4 14:19:54 orthanc dhcpcd[1828]: fxp0: deleting default route via 
10.10.0.254
Sep  4 14:19:55 orthanc dhcpcd[1828]: fxp0: carrier acquired
Sep  4 14:19:55 orthanc dhcpcd[1828]: fxp0: IAID 6b:30:89:cb
Sep  4 14:19:55 orthanc dhcpcd[1828]: fxp0: rebinding lease of 10.10.0.169
Sep  4 14:19:56 orthanc dhcpcd[1828]: fxp0: soliciting an IPv6 router
Sep  4 14:20:01 orthanc dhcpcd[1828]: fxp0: leased 10.10.0.169 for 86400 
seconds
Sep  4 14:20:01 orthanc dhcpcd[1828]: fxp0: adding host route to 
10.10.0.169 via 127.0.0.1
Sep  4 14:20:01 orthanc dhcpcd[1828]: fxp0: adding route to 10.10.0.0/24
Sep  4 14:20:01 orthanc dhcpcd[1828]: fxp0: adding default route via 
10.10.0.254
Sep  4 14:20:01 orthanc dhcpcd[1828]: fxp0: carrier lost
<...>
and so on


Now I think.. let's try the old dhclient. And it works at the first attempt!
Sep  4 14:20:34 orthanc dhclient: Listening on BPF/fxp0/00:09:6b:30:89:cb
Sep  4 14:20:34 orthanc dhclient: Sending on BPF/fxp0/00:09:6b:30:89:cb
Sep  4 14:20:34 orthanc dhclient: Sending on   Socket/fallback
Sep  4 14:20:34 orthanc dhclient: DHCPDISCOVER on fxp0 to 
255.255.255.255 port 6
Sep  4 14:20:34 orthanc dhclient: DHCPDISCOVER on fxp0 to 
255.255.255.255 port 6
Sep  4 14:20:37 orthanc dhclient: DHCPREQUEST on fxp0 to 255.255.255.255 
port 67
Sep  4 14:20:37 orthanc dhclient: DHCPOFFER from 10.10.0.5
Sep  4 14:20:37 orthanc dhclient: DHCPACK from 10.10.0.5
Sep  4 14:20:38 orthanc dhclient: bound to 10.10.0.170 -- renewal in 
37269 secon

So... besides thinking that the trusty cdhclient shouldn't be retired 
because it always worked and continues to work well (and I like it 
more). What's wrong with the other client? I would say there is a bug. 
But is it in the fxp0 driver itself or dhcpcd?

It is not something related to cables/network I suppose, since home vs. 
work are different nets.

Riccardo