Monday, June 4, 2012

How does NUD compare with FHRP ?

Stumbled upon this link that compares the neighbor unreachability detection in IPv6 with redundancy protocols:

http://packetlife.net/blog/2011/apr/18/ipv6-neighbor-discovery-high-availability/

Which IPv6 prefix length to announce in the internet ?

This is mostly as a notepad entry for myself, but putting here in case anyone finds it useful.

The question is - "how long is the IPv6 prefix that I can announce?".

Here are some links to help understand the answer to this question:

RIPE recommendations

Practical experiments from RIPE on prefix visibility:

Nanog discussion about the prefix length from 2011: