IPv6 NAT

Eliot Lear lear at cisco.com
Fri Oct 31 17:01:40 UTC 2003


Patrick W. Gilmore wrote:

>> NAT is harmful to many protocols.  Stateful
>> inspection is not.
> 
> 
> Possibly.  But Joe User will never use those "many protocols".  Plus the 
> overwhelming majority of protocols are not harmed by NAT.

Of course NAT causes all sorts of damage to all sorts of protocols, as 
the debate over VPN software demonstrated, nevermind voice applications 
and peer to peer networking.  It also has substantial implications for 
mobility.  This has all been well documented, as have workarounds. 
Having yet another argument about this on nanog is a waste of bits (to 
which I freely admit I'm contributing).  Let me suggest we not bother 
with the rest of the argument, but just have people search the archives.

Eliot





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