6RD CPE

[Ted Mittelstaedt]

On 1/11/2011 12:17 AM, Mohacsi Janos wrote:
>
>
>
> On Mon, 10 Jan 2011, Ted Mittelstaedt wrote:
>
>> On 1/10/2011 5:09 AM, Mikael Abrahamsson wrote:
>>>
>>> Is there a residential broadband (pricewise) CPE that is commercially
>>> available to the average end user that will do 6RD? I'm looking for two
>>> models with either ADSL2+ or ethernet WAN ports (our two main access
>>> techniques).
>>>
>>> This needs to be done without custom firmware, so homebrew OpenWRT etc
>>> doesn't cut it. Customer needs to be able to go to the store, configure
>>> it like a normal NAT gateway, but it should also support 6RD and the
>>> customer just inputs our 6RD gateway and prefix, and things should just
>>> work.
>>>
>>
>> According to the blog here:
>>
>>
>> http://labs.ripe.net/Members/mirjam/ipv6-cpe-survey-updated-september-2010
>>
>>
>> D-Link 6RD support, "vendor" status
>> Posted by Hans at 20 December 2010 04:06
>> The following Model/Firmware will support 6rd.
>>
>> DIR652 Rev.A1 v1.03
>> DIR825 Rev.B1 v2.06
>> DIR615 Rev.Ex v5.12
>> DIR632 Rev.A1 v1.03
>> DIR601 Rev.A1 v1.03
>> DIR655 Rev.B1 v2.02
>
> However these boxes (with indicated revisions) or software releases are
> not generally available.
>
> Best Regards,
> Janos Mohacsi

I strongly advise anybody playing with IPv6 on a consumer CPE to 
familiarize yourself with the www.dd-wrt.com router database
website even if you never plan on running their firmware.  The
reason is their router database tells you what is really in the
boxes since they take them apart.

According to that site:

DIR825 hardware version B1 & B2 use the same chip (AR7161) and have the 
same amount of ram and flash

DIR 615 all rev E versions have same chip and flash and dram

It would not be sensible or logical for D-link to rewrite a new
firmware for different versions when the versions are the same
architecture.

I have not known D-link to withdraw support for a feature in a newer
hardware rev of a model.  The worst you might get would be a newer
firmware having a bug that wasn't in an older firmware, and because
of that it would be fixed if made known to d-link

DIR 652,632,601,655 are not possible and for that reason alone I would
disqualify them even from testing - since if the factory firmware is
crap, they are doorstops

I personally have a DIR615 C1 running under dd-wrt.  I can report that
the factory firmware lies down and dies if you look at it funny.  The
dd-wrt firmware works a lot better but the router still locks up if
there's a lot of traffic on it.  However, this router uses a different
chip than the later hardware revs. and based on it's performance under
dd-wrt the hardware clearly has a bug in it.  For $20 which is what it
cost me new, what do you expect?


Ted