[arin-ppml] Why not NAT for Dorms (Was: Suggestion: charging for IPv4 space)

Michael Sinatra michael at rancid.berkeley.edu
Tue Oct 21 20:58:30 EDT 2008

On 10/21/08 17:43, David Farmer wrote:
> On 21 Oct 2008 Ted Mittelstaedt wrote:
>> For myself I do not understand why all of these academic
>> users keep throwing up examples of student dormotories
>> that chew up vast blocks of IPv4.  Why does ANY student that
>> is getting Internet connectivity for free from the college
>> expect to get a public IPv4 number?

Because it's not free.  They pay for connectivity like everyone else and 
we are their ISP.  Which leads to Dave's point:

> 5. Competition - If students move out of the dorms to get real IPs from 
> Comcast so all there games and other stuff work then we get a bad 
> reputation.  Students actually take into account the wiredness of a school 
> when selecting where to go now.  That's at least as good as of a reason to 
> consider than if we are party school or not, dude!!
> 6. Why should Comcast users expect a real IP address from Comcast?  It is 
> really the same questions.
> I'll stop here, but I could keep going on and on...

Ultimately, I expect to have our wireless nets and possibly eventually 
the residence halls using NAT for v4 while giving them globally-routable 
v6 addresses.  The other option is to give them v6 only and use whatever 
flavor of NAT-PT we ultimately accept as a community.  But that's a ways 

But I still think NAT sucks.  And it sucks just as much in the residence 
halls as it does anywhere else.  (I guess that could be Dave's #7.)


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