Bill, I know you know better, so let's try more facts and less FUD. Mmmmkay? Your above paragraph is a red herring that is analogous to saying "all multihomed services must be run on the router itself".
yes, it does lean that way... but to expose a sigma-six blip in how some people may think about anycasting techniques.
Here's the deal: DNS server runs a BGP/OSPF/whatever speaker.
One model. ISC is enamored of this model. I'm not. http://www.isc.org/tn/isc-tn-2003-1.txt
You won't find a turnkey RPM to do it, but that doesn't mean it's impossible. In fact, if you slow down and read previous posts, you'll note some very big hints re how to build such a working system. If you're limited to installing out-of-the-box packages, you _will_ have a huge mess... but that's not my problem.
Nope, it can even be done w/ COTS technologies. Been there, Done that. Ate the cheese as fondue.
This has impact on the design of anycast solutions. Ultra has one model, ISC has another, and PCH uses a third. The more generic content crowd has its favorites. Then there are the "load-balancing" vendors who cater to these folks. One size does not fit all.
Okay, I'll give you credit for that paragraph.
thanks. we now return you to your worst-design show&tell. (my fav today.... optical connectors!)
Eddy
--bill