[atlas] Survey results on Atlas open-sourcing

On 1/5/12 9:26 , Iñigo Ortiz de Urbina wrote:
> This is good to hear. I was meaning that according to the FAQ, there 
> seems to be something around IPv6 (not affecting ping6 or 
> traceroute6). See: " Q: I have an IPv6-only network. Will the probe 
> work on it? A: Although the probe itself is IPv6-ready in general, 
> some of the off-the-shelf software components on it are not (yet). We 
> hope that this will be resolved soon, but until then the probe needs 
> IPv4 to communicate with our infrastructure. The measurements 
> themselves can run on IPv6. " 
The main limiting factor is DNS. For static configurations it should work.

For normal (dynamic) configuration, the problem is that we have no 
support for either DHCPv6 or the DNS resolver option in RA.
So without IPv4, the probe will not have a DNS resolver.

But I guess the FAQ needs to be updated to say that it can be made to 
work with static configuration.

> But, as Jens already jumped in, I want to support his comments on 
> adding DNS or HTTP checks. Sometimes ICMP cant be unfiltered, or the 
> user experience is degraded due to HTTP, DNS response times 
> themselves, and not the latency. 
For DNS it is just a matter of adding it to the user interface. Http 
requires a policy decision on how to avoid getting probe hosts in trouble.