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Wireshark-users: [Wireshark-users] Wireshark Macbook Air USB assistance

From: John C <johnc73@xxxxxxxxx>
Date: Tue, 26 Jan 2010 17:28:50 +0800
I just installed Wireshark 1.2.4 on my MacBook Air, and I need some
assistance in getting the USB Ethernet Interface to be recognized to do
captures from. Does anyone know how to get the USB ethernet interface
to show up in the selectable capture interface list so you can get
ethernet captures from the USB interface ? Neither my Airport nor my USB
port are showing up as capture interfaces (I have no interfaces to select).
My ifconfig -a output is

61-31-22-173:.wireshark-etc johnc73$ ifconfig -a
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
	inet6 ::1 prefixlen 128
	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
	inet 127.0.0.1 netmask 0xff000000
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=0<> mtu 1280
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	ether 00:26:b0:f9:1a:5a
	media: autoselect (<unknown type>) status: inactive
	supported media: autoselect
en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet6 fe80::225:4bff:fefd:62f9%en1 prefixlen 64 scopeid 0x7
	inet 61.31.22.173 netmask 0xffffffe0 broadcast 61.31.22.191
	ether 00:25:4b:fd:62:f9
	media: autoselect (100baseTX <full-duplex,flow-control>) status: active
	supported media: none autoselect 10baseT/UTP <half-duplex>
10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,flow-control>
100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX
<full-duplex,flow-control>
61-31-22-173:.wireshark-etc johnc73$

Thank You for any assistance you can provide.
John C