Does a forwarded packet has a local socket with it?

Does a forwarded packet has a local socket with it?

[Park Lee]

Hi,

Can anyone tell me that:

Does a forwarded packet has a corresponding local
socket with it?

Thanks a lot


Best Regards,
Park Lee


		
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Re: Does a forwarded packet has a local socket with it?

[jamal]

simple answer: no

cheers,
jamal
On Mon, 2005-18-04 at 03:44 -0700, Park Lee wrote:
> Hi,
> 
> Can anyone tell me that:
> 
> Does a forwarded packet has a corresponding local
> socket with it?
> 
> Thanks a lot
> 
> 
> Best Regards,
> Park Lee
> 
> 
> 		
> __________________________________ 
> Do you Yahoo!? 
> Take Yahoo! Mail with you! Get it on your mobile phone. 
> http://mobile.yahoo.com/maildemo 
> 
> 

Re: Does a forwarded packet has a local socket with it?

[Park Lee]

On Mon, 18 Apr 2005 at 08:03, jamal wrote:
> simple answer: no

Thank you very much.

Still, Does a forwarded packet also have no any kernel
socket with it?  i.e. Is a forwarded packet not
associated with any socket at all? 

When the forwarded packet arrived at its destination
machine, is there any socket associated with the
packet on the destination machine?

Thanks again. 

Best Regards,
Park Lee


		
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Re: Does a forwarded packet has a local socket with it?

[Neil Horman]

On Mon, Apr 18, 2005 at 07:03:47AM -0700, Park Lee wrote:
> On Mon, 18 Apr 2005 at 08:03, jamal wrote:
> > simple answer: no
> 
> Thank you very much.
> 
> Still, Does a forwarded packet also have no any kernel
> socket with it?  i.e. Is a forwarded packet not
> associated with any socket at all? 
Not on the fowarding machine, no.  There is no need for a socket, since a socket
just defines an endpoint for a connection, or a data source or sink.  A device
that forwards a packet has no need to define a socket, since its not sourcing or
sinking data, its just forwarding it.

> 
> When the forwarded packet arrived at its destination
> machine, is there any socket associated with the
> packet on the destination machine?
> 
Sure, at the originating host, and at the receiving host.
Neil
> Thanks again. 
> 
> Best Regards,
> Park Lee
> 
> 
> 		
> __________________________________ 
> Do you Yahoo!? 
> Plan great trips with Yahoo! Travel: Now over 17,000 guides!
> http://travel.yahoo.com/p-travelguide
> 

-- 
/***************************************************
 *Neil Horman
 *Software Engineer
 *Red Hat, Inc.
 *nhorman@redhat.com
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Re: Does a forwarded packet has a local socket with it?

[Masoud Sharbiani]

On Mon, 2005-04-18 at 07:03 -0700, Park Lee wrote:
> On Mon, 18 Apr 2005 at 08:03, jamal wrote:
> > simple answer: no
> 
> Thank you very much.
> 
> Still, Does a forwarded packet also have no any kernel
> socket with it?  i.e. Is a forwarded packet not
> associated with any socket at all? 
> 
No.

> When the forwarded packet arrived at its destination
> machine, is there any socket associated with the
> packet on the destination machine?
It better be :-) 
Otherwise, it could be ignored or just refused (as in connection
refused).
> 
> Thanks again. 
> 
> Best Regards,
> Park Lee
> 
> 
> 		

cheers, 
Masoud
-- 
Masoud Sharbiani <masouds at masoud.ir>