Re: Implementations/suggestions for Multihoming IPv6 for DSL sites

[Tomas Podermanski <tpoder () cis vutbr cz>]

Hi Daniel,
    all IPv6 multihoming ideas are very theoretical today. None of them
is ready to use. Shim6 looks very good, but it requires support on both
a client and a server side. As you can guess, there is only experimental
support for some operating systems. Microsoft and Apple doesn't support it.

A one possible solution I have found is based on a network prefix
translation (NPTv6 http://tools.ietf.org/html/draft-mrw-nat66-12). Using
NPTv6 you can do multihoming that is very similar to multihoming based
on IPv4 NAT.

I haven't found any commercial product that supports it, but you can use
an implementation for Linux (map66
http://sourceforge.net/projects/map66/). Assembling map66 with some
other scripts (to detect link failure) you can have what are you looking
for.


On 4/7/11 11:58 AM, isabel dias wrote:
> have you thought about taking a Cisco training course?

I wonder if that kind of knowledge can be learned in any Cisco course
today. I don't think so.

Tomas

> ----- Original Message ----
> From: Daniel STICKNEY <dstickney () optilian com>
> To: nanog () nanog org
> Sent: Thu, April 7, 2011 10:27:01 AM
> Subject: Implementations/suggestions for Multihoming IPv6 for DSL sites
>
> Hello all,
>
> I'm investigating how to setup multihoming for IPv6 over two DSL lines
> (different ISPs), and I wanted to see if this wheel has already been
> invented. Has anyone already set this up or tested it ?
>
> In my research into the proposed solutions I came across this document
> "IEEE Communications Surveys - 2nd Quarter 2006, Volume 8, No. 2"
> (http://www.shim6.org/path-to-mh.pdf) which seems quite thorough. It
> compares routing methods, middle-box methods, and host-centric methods.
> It mentions "During the last years, the IETF has made several explicit
> or implicit architectural decisions regarding IPv6 multihoming. The main
> decision is to go down the path of developing the host-centric
> approaches" as well as "Host-centric multihoming, the approach promoted
> by the IETF for IPv6 multihoming, [...]". After the comparison of all
> host-centric methods it adds " [...], the IETF has decided by the end of
> 2004 to foster the SHIM approach."
>
> This approach looks interesting to me after all the comparisons, though
> I'm less familiar with it. I'm interested to hear your real-world
> experiences on this topic.
>
> Thanks,
> Daniel