Re: [v6ops] distributed vs centralized approaches to ND security

Nick Hilliard <nick@foobar.org> Sun, 09 August 2020 20:08 UTC

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To: Michael Richardson <mcr+ietf@sandelman.ca>
Cc: v6ops list <v6ops@ietf.org>, 6man <ipv6@ietf.org>
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From: Nick Hilliard <nick@foobar.org>
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Subject: Re: [v6ops] distributed vs centralized approaches to ND security
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Michael Richardson wrote on 09/08/2020 21:02:
> SLAAC has the features that it is seems completely stateless for the routers.
> One can as many add routers to the network as desired to deal with whatever
> resilience issues one has.   Many IPv4 experienced people are startled to
> realize that one does not need VRRP or anything to have redundant routers in
> IPv6.

with respect, ND/RA has awful failover characteristics if a router 
disappears.  NHRPs like VRRP do a much better job.

Nick