nanog mailing list archives

Re: netflix OCA in a CG-NAT world


From: Dave Temkin <dave () temk in>
Date: Tue, 27 Nov 2018 04:57:06 +0800

On Tue, Nov 27, 2018 at 3:48 AM Grant Taylor via NANOG <nanog () nanog org>
wrote:

On 11/25/2018 09:47 PM, Dave Temkin wrote:
Putting an OCA with bypass through the CGN with RFC1918 space will
actually work just fine. We (Netflix) don't formally support it because
of the vast number of non-standard CGN implementations out there, but if
your clients are in RFC1918 space and the next hop router from the OCA
knows how to reach them, it will just work.

Does this include RFC 6598 Shared Address Space, 100.64.0.0/10?  Or is
it limited to RFC 1918 Address Space?

Does it really matter what the private IPs are?  (I've seen people
re-use publicly allocated but not publicly used IP address space.)  Or
does it "just work" as long as the OCA's first hop knows how to reach
the private IPs?



The latter.

-Dave

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