After upgrading to Snow Leopard, one of the few things that stopped working for me was

Wireshark
Wireshark, a really cool network analyzer I’m planning to write more about later. What happened was that at startup you get a long list of error messages, and then no network interfaces could be found.
Luckily, Michael Gracie has scavenged the net for a solution, and found it.
Basically, all you need to do is follow the normal instructions, Dragging the app to the Application folder, the ChmodBPF folder in utilities to the StartupItems alias and the contents of the commandLine folder to /usr/local/bin.
Open a terminal and type:
cd /Library/StartupItems
sudo chown -R root:wheel ChmodBPF
enter your password and hit enter.
Now start up Wireshark, close the list of error messages, hit edit -> preferences -> name resolution, click the edit button next to “SMI (MIB and PIB paths)”, click “new” and type /usr/share/snmp/mibs/ in the text field. Now click apply / OK, all your way out, exit, and reboot your computer.
After the reboot, everything should be working like a charm.
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One Comment
I know I”m doing something stupid, but I’ve installed Wireshark 1.2.6 twice now, done all the magic incantations (which I wouldn’t have had a clue about but for the above), and I still can’t get any interfaces to show. The Network Preferences show that an IP address has been allocated, and that the Mac is (theoretically) on a duplex GbE connection, but Wireshark still won’t play.
regards
Geoff
(whose last Mac ran OS8 and who’s just had a twelve-year Windows break before buying his latest one)