[mdlug] IPv6 - for MDLUG Group

[Michael Mol]

On Sat, Jan 7, 2012 at 3:33 PM, Dan Pritts <danno at umich.edu> wrote:
>
> Adam Tauno Williams wrote:
>>> >  2) IP and ICMP. What an IP address is, how the address space is
>>> >  distributed (CIDR), how IP addresses are obtained (ARP, DHCP), and how
>>
>> I still find IPv6 vs. ARP to be a strange thing.
> ARP is not used in IPv6 but there is a analogue, NDP (neighbor discovery
> protocol).
>
>  From an end-user perspective they are more or less identical.  They
> work differently on the wire, though; ARP uses ethernet layer
> broadcasts; NDP is a subset of ICMP6 and uses IP6 multicasts.

And there are potentially practical consequences from that, too, if
you've got a many-port switch seeing a lot of ARP traffic. IPv6
multicast is a bit more selective.

Anyway, I'm going to do a dry-run of my presentation next week
Wednesday at GRLUG, make sure I've got things properly in order.

-- 
:wq