[CentOS] packet traversal

John R Pierce wrote:
> On 12/6/2013 11:28 AM, m.roth at 5-cent.us wrote:
>>> I don't know whether i am asking on a correct list or not i have a
>>> query that how to know that what system call are called when packet
enters
>>> the system or when we send a packet from a system?

>> Hi, there. Sounds like you want to do a tcpdump, or some such, on eth0
>> (or hatever).
>
> um, no, that wouldn't answer his question.
>
> when a packet is recieved by a NIC, it generates a hardware interrupt,
<snip>
Right, we mostly all know that. But from his original query, I wasn't sure
what he wanted... for that matter, I'm still not sure.

      mark