[atlas]DNS records for the probes' internet address
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Wilfried Woeber, UniVie/ACOnet
Woeber at CC.UniVie.ac.at
Thu Dec 2 21:30:41 CET 2010
João Damas wrote: > Antony, > the "good" is for the users. It would provide them with a stable name > to address the variable external IP they get from the ISP, enabling access > to home machines from the outside using the name, independently of what > IP the DSL modem/cable modem happens to have at any given time Actually, I can see the beauty of name-to-dynamic-IP-tracking, but I doubt that it is a reasonable investment to teach the small things to do dynamic DNS *centrally*. To be able to get a grip on that one, I think we'd need to better understand when and how the probe detects an change of address? My feeling is that tracking of IP to name mapping is a local issue. Wilfried > Joao > > On 2 Dec 2010, at 17:27, Antony Antony wrote: > > >>talking as an individual. >> >>Isn't it the same as probe ID? just another namespace. >>I wonder how forward dns would scale for large sensor networks. >> >>I have my doubts on usability and maintaining operational constancy of forward dns records when probes change ip addresses. For example, German DSL networks might change probe's public IP-address every day. May be as Jo?o suggested dyndns could work in theory. Once there are 1000s of probes what good are forward names. Then we will need hierarchies. >>one hierarchuy based on geography, one based network prefixes, asns .. >> >>Currently these probes just send out measurements and don't respond to anything but ping. >> >>On the other hand if the probes become more static say something like an >>rpsl-reachable-test [1] there is definitely value for forward dns. Then you actually want a name to IP address mapping. >> >>regards, >>-antony >> >>[1] http://tools.ietf.org/html/draft-haberman-rpsl-reachable-test-04 >> >> >> >> >> >>On Thu, Dec 02, 2010 at 11:17:13AM +0100, Tore Anderson wrote: >> >>>Hi list, >>> >>>I've got a probe connected to my home broadband connection, which might >>>change its WAN address whenever my ISP feels like it should. I just >>>thought it would be a nice feature if the probes had an A record in DNS >>>that were automatically updated to match the current external address. >>>Like probe-121.atlas.ripe.net or something. That way I would have a >>>hostname I would be sure that points to the WAN address of my CPE >>>whenever I want to log on to my home network from somewhere else. >>> >>>I would think such a feature would be a small incentive for home >>>broadband users to become probe hosts. >>> >>>On an unrelated note, the graphs for the probe in question (#121) >>>doesn't work, they're all gray, even though the probe is up. >>> >>>Best regards, >>>-- >>>Tore Anderson >>>Redpill Linpro AS - http://www.redpill-linpro.com >>>Tel: +47 21 54 41 27 >>> >>> >> > >
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