North American Network Operators Group|
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RE: Large ISPs doing NAT?
On Wed, 1 May 2002, Deepak Jain wrote: > Almost? I'd say it's hands down an EXCELLENT reason. In some configs > though, the NAT'd people can still see each other and cause problems, > but it still cuts down the exposure. I've received a couple off-list replies about containment within the NAT'ed area, but I don't see this being a significant issue, as in order to make this at all scalable, it would need to be done at a relatively granular level, ie. directly at customer aggregation router, which would limit scope a fair deal. Support-staff debugging may also end up simpler, if for no other reason that it forces them to go to the edge router to reach the customer directly, eliminating ill-concieved 'shortcuts'. The benefits to core engineering teams would be interesting as well, given that public space becomes genuinely dynamic, even at the edge. ...and as has been mentioned, nothing precludes offering non-NAT as a premium service, just as the DSL providers have done already w/ offering /29's or static addresses. ..kg..