Ethereal-dev: Re: [Ethereal-dev] Interface not displayed in Capture->Start combobox

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From: steve glass <stiabhan@xxxxxxxxxxxxxx>
Date: Sun, 22 Aug 2004 14:36:13 +1000
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Guy Harris wrote:
| OK, so libpcap has "pcap_findalldevs()", so that's probably what's being used to find the network interfaces. Just out of curiosity , what does "tcpdump -D" (tcpdump, not tethereal) print?
There are several libcaps on this machine. In /usr/include + /usr/lib its ridiculously out of date. Removed them anyway but the problem is simply...
| OK, no IP address, so it won't show up in SIOCGIFCONF (the primary mechanism used by libpcap on Linux if "getifaddrs()" isn't present).
Bingo! We have a winner. I was configuring the interface +promisc without bothering to set an IP address (reasoning it didn't need one) but now have it working properly. 

Many thanks,

Steve

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