nanog mailing list archives

Re: comcast ipv6 PTR


From: Valdis.Kletnieks () vt edu
Date: Wed, 16 Oct 2013 08:59:21 -0400

On Wed, 16 Oct 2013 18:50:29 +1100, Mark Andrews said:

I can see this being done completely automatically by the CPE device.
It is trivial to code.  It just required ISP's to *allow* it to happen.

The rest of the plan looks OK at first glance.. However, step 0:

* CPE generates a RSA key pair.  Stores this in non-volatile memory.
  [needs to be coded, no protocol work required]

has proven to be a lot harder to do in the field than one might expect, due
to the very limited amount of entropy sources available to a CPE that Joe
Sixpack just pulled out of a Best Buy shopping bag.  Witness the truly huge
pile of CPE that generate horribly insecure weak self-signed certs for https....

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