IPv6 equivalent of ARP - possibly dumb question

[Gert Doering]

Hi,

On Wed, Mar 31, 2010 at 08:05:07AM -0500, Frank Bulk - iName.com wrote:
> It's my understanding that the closest equivalent of ARP in IPv6 is "sh ipv6
> neighbors".  When I do that on our Cisco 7206VXR running 12.2(31)SB16 I see
> only a few addresses, not nearly all the ones that I know that the PCs
> "obtained" via SLAAC.

These entries seem to expire fairly quickly.

> How do I see which IPv6 hosts are actively sending traffic through/to our
> router?

By checking "show ipv6 neighbors" - that's the active hosts.  Most likely
the "unseen rest" is onyl using IPv4...

Alternatively, and if your IOS permits (I'm not sure about 12.2SB - 12.2S
does not, 12.2SR and 12.4 definitely do) you could use IPv6 netflow.

Gert Doering
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