[c-nsp] null routing in ipv6

[Mack McBride]

Your brain isn't running IPv6 yet.
Pony up the six pack. 
::2 will be treated as an unreachable.
However, this is bad practice because you can't guaranty someone isn't going to insert a default.
Point the d*$% thing at Null0.

Mack McBride
Network Architect
Viawest, Inc.

Router#show ipv6 route ::1
Routing entry for ::/127
  Known via "connected", distance 0, metric 0, type receive
  Route count is 1/1, share count 0
  Routing paths:
    receive via Null0
      Last updated 00:02:11 ago

Router#show ipv6 route ::2
% Route not found


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Christian MacNevin
Sent: Friday, June 11, 2010 3:12 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] null routing in ipv6

Hello

A distinguished and beautifully tanned colleague of mine came up with the wild notion of routing black hole traffic to the ipv6 equivalent
Of 127.0.0.2 (::2/128). So far, it's been working. My question is whether this is in fact going to punt everything to the CPU and in fact worsen
the situation under load. My brain says maybe it is and as of this email I've decided that there's a six pack riding on it.

Accordingly, should we move that back to set next hop int Null0?

Thanks!
Christian
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