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Re: Multicast listening


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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References: 
 >Multicast listening (From: "Alex Tarter" <email@hidden>)
 >Re: Multicast listening (From: Mohacsi Janos <email@hidden>)
 >RE: Multicast listening (From: "Alex Tarter" <email@hidden>)
 >Re: Multicast listening (From: "Hamish Allan" <email@hidden>)
 >RE: Multicast listening (From: "Alex Tarter" <email@hidden>)
 >Re: Multicast listening (From: "Hamish Allan" <email@hidden>)



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