Hello Steve!

  SMB> What is the output of 'ifconfig -a'?  Do the dhclient
     > messages mention any other interfaces?

Not sure about the dhclient messages, but here's the output
from 'ifconfig -a'...

  - Andy Ball

-------------------------------------<snip>-------------------------------------
ne0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        address: 52:54:40:22:1b:66
        media: Ethernet autoselect (10baseT full-duplex)
        inet 192.168.1.104 netmask 0xffffff00 broadcast 192.168.1.255
        inet6 fe80::5054:40ff:fe22:1b66%ne0 prefixlen 64 scopeid 0x1
lo0: flags=8009<UP,LOOPBACK,MULTICAST> mtu 33228
        inet 127.0.0.1 netmask 0xff000000
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
        inet6 ::1 prefixlen 128
ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
ppp1: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 296
sl1: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 296
strip0: flags=0<> mtu 1100
strip1: flags=0<> mtu 1100
tun0: flags=10<POINTOPOINT> mtu 1500
tun1: flags=10<POINTOPOINT> mtu 1500
gre0: flags=8010<POINTOPOINT,MULTICAST> mtu 1450
gre1: flags=8010<POINTOPOINT,MULTICAST> mtu 1450
ipip0: flags=8010<POINTOPOINT,MULTICAST>
ipip1: flags=8010<POINTOPOINT,MULTICAST>
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif1: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif2: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif3: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
--------------------------------------------------------------------------------.