Ipv6 Routing (from hell)

[Jonathan McDowell]

On Sat, Mar 29, 2008 at 12:32:45AM +1030, Michael Taht wrote:
> Nick Hilliard wrote:
> >> An AR7 router running OpenWRT is probably the cheapest option, but
> >> it's not really ready for the average end user yet. I have a D-Link
> >> DSL-G604T doing IPv6 over PPPoA running a recent OpenWRT build.
> >
> > I Have Heard On The Grapevine(tm) that Netopia have an ipv6 enabled
> > image internally which you might be able to get your hands on if you
> > beg and plead and get talking to the right people - and have the
> > right CPE device.  Other than that, the CPE ipv6 situation makes me
> > want to cry.
>
> One of the ideas I have been toying with is building an open source
> wireless/ADSL gateway from the ground up, along the same lines as the
> free telephony project (site here: http://www.rowetel.com/ucasterisk/ a
> video of David Rowe's talk at linux.conf.au here:
> http://linux.conf.au/programme/wednesday )
> 
> My dream router would leverage openwrt, do ADSL, 802.11s, ipv6, dnsmasq
> and squid, which means it would have large amounts of flash and ram, but
> be low power and infinitely upgradable. Complying with the ADSL
> standards looks easier than DOCSIS... barely. It doesn't sound like any
> of the routers you've suggested so far do ADSL2+, though...

The AR7 is listed as doing ADSL 2+ by TI, but I'm only using it under
OpenWRT with ADSL1.

> The BOM on (for example) the latest atheros chipsets is something like
> $12.50 US. The marvel wireless chip as used in the olpc is another
> option.

The difficulty seems to be the ADSL chipset rather than the wireless
component. More recent Linux ADSL routers seem to use the Broadcom 63xx
series but I'm not aware of any open drivers for this.

In regards to DOCSIS my understanding was that you had to move to the
DOCSIS3 standard in order to be able to do IPv6; I've no idea if that
means all kit on the network has to be DOCSIS3 compliant or if it has
some sort of backwards compatibility where DOCSIS2 kit will operate on
the same network? If the former then I guess IPv6 cable is some way
off...

J.

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