Re: Multicast listening
Re: Multicast listening
- Subject: Re: Multicast listening
- From: Andreas Fink <email@hidden>
- Date: Wed, 9 Jan 2008 19:31:38 +0100
On 09.01.2008, at 19:17, Hamish Allan wrote: On Jan 9, 2008 3:29 PM, Alex Tarter <email@hidden> wrote:
OK here is the code I'm using,
I get a bus error when I run your code, but if I pare it down to the
core multicast receive (see below) it works okay.
If I then run "nc -u 239.192.12.0 48640" in another window and type a
line of characters, your code confirms their receipt.
I'm running 10.5.1, and I'm not running Wireshark.
Is it possible that Wireshark is leaving your network interface in a
sorry state after it exits? Have you tried running your code after
rebooting, before running Wireshark?
Hamish
Wireshark uses libpcap.dylib from MacOS X to caputre which opens /dev/bpf devices. So very unlikley this causes the issue of crashes. I use wireshark almost daily and never experienced any "unclean states" on the network interface. However I dont use multicasts. But if it would be something unclean it would be in the system.
Andreas Fink
Fink Consulting GmbH Global Networks Schweiz AG BebbiCell AG
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