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* is this ip spoofing?
@ 2003-08-17  2:28 Payal Rathod
  2003-08-18 10:05 ` Chris Wilson
  0 siblings, 1 reply; 2+ messages in thread
From: Payal Rathod @ 2003-08-17  2:28 UTC (permalink / raw)
  To: netfilter

Hi,
I don't know much about SNAT. But is this equivalent to i-spoofing in
such case? Is this how SNAT works?

Assume I have a internal ip 192.168.0.10. All traffic coming from it
should be seem as coming from 202.1.1.1. So I use SNAT and POSTROUTING
and now connection seems to take place from 202.1.1.1. But isn't it
similar to ip-spoofing?

Thanks a lot and bye.
With warm regards,
-Payal


-- 
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^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: is this ip spoofing?
  2003-08-17  2:28 is this ip spoofing? Payal Rathod
@ 2003-08-18 10:05 ` Chris Wilson
  0 siblings, 0 replies; 2+ messages in thread
From: Chris Wilson @ 2003-08-18 10:05 UTC (permalink / raw)
  To: Payal Rathod; +Cc: netfilter

Hi Payal,

> I don't know much about SNAT. But is this equivalent to i-spoofing in
> such case? Is this how SNAT works?
> 
> Assume I have a internal ip 192.168.0.10. All traffic coming from it
> should be seem as coming from 202.1.1.1. So I use SNAT and POSTROUTING
> and now connection seems to take place from 202.1.1.1. But isn't it
> similar to ip-spoofing?

Technically, I suppose that IP spoofing is simply generating a packet 
where the source address is not an address of your own machine. I suppose 
that SNAT is one way of achieving that, although there are far easier ways 
if that's all you want to do, and SNAT can also be used for non-spoofing 
purposes, such as rewriting to an alias on your machine.

Cheers, Chris.
-- 
   ___ __     _
 / __// / ,__(_)_  | Chris Wilson -- UNIX Firewall Lead Developer |
/ (_ / ,\/ _/ /_ \ | NetServers.co.uk http://www.netservers.co.uk |
\ _//_/_/_//_/___/ | 21 Signet Court, Cambridge, UK. 01223 576516 |



^ permalink raw reply	[flat|nested] 2+ messages in thread

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2003-08-17  2:28 is this ip spoofing? Payal Rathod
2003-08-18 10:05 ` Chris Wilson

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