Help: What's the raw packet socket?

Dear all,

I am a primary programmer on network.
>From some documents, I have read that some interfaces between host and
clients are programed by the raw packet socket. My question is:

1. What's the raw packet socket?
2. What's the differnce between a general socket and the raw packet
socket?
3. Where could I found more details about the raw packet socket?

Thanks

Jian Zhang

bg2aw wrote:

> I am a primary programmer on network.

What?

> From some documents, I have read that some interfaces between host and
> clients are programed by the raw packet socket. My question is:
>
> 1. What's the raw packet socket?
> 2. What's the difference between a general socket and the raw packet
> socket?
> 3. Where could I found more details about the raw packet socket?

I'd start with:

man 7 raw
man 7 packet

http://www.linuxmanpages.com/man7/raw.7.php
http://www.linuxmanpages.com/man7/packet.7.php