Stephen Fisher said the following:
you will need a hub or Ethernet tap and connect
it in between the Airport and the DSL modem.
thanks or the reply. There _is_ an Ethernet cable from the Extreme to the DSL
Modem. And that's how the MacBook gets to the Internet.
A long time ago, using Wireshark, I remember seeing "en0" as a choice. Now
it's en1 only ...
FYI:
---------------------------
rd$ ls -l /dev/bpf*
crw-rw---- 1 root admin 23, 0 Apr 6 11:16 /dev/bpf0
crw-rw---- 1 root admin 23, 1 Apr 6 11:09 /dev/bpf1
crw-rw---- 1 root admin 23, 2 Apr 6 11:09 /dev/bpf2
crw-rw---- 1 root admin 23, 3 Apr 6 11:09 /dev/bpf3