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Finding a device id through which TCP packet is sent

Subject: Finding a device id through which TCP packet is sent
From: "parag vibhute" <email@hidden>
Date: Wed, 30 May 2007 19:58:48 +0530
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Hi all,

This is my first mail & I have following objectives to do.
1. Suppose there are more that one network connections (like one through ethernet card & other through airport) are present from mac. Now I have made TCP connection using BSD socket API. I want to get device id (stuff like that) of network device through which my TCP packet is getting sent (or u can say my TCP communication is going on). I will use this device id as mentioned in following step.
2. Now when any connection status changes ( say network cable gets disconnected), I want to get notification of that. Also want to know device id whose network status is changed.
3. Then I will compare this device id ( whose network status is changed) with the device id ( through which my TCP communication was going on). If match is found then I will inform user otherwise I will just ignore it.

Please tell me how should I proceed?

Thanks,
Palav

--
There are many things in your life that will catch your eye but only a few will catch your heart....pursue those'
.

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