Craig, I think that this would be an opportune time to mention the PIER [Procedures for Internet/Enterprise Renumbering] WG; the issues that you mentioned below fall with PIER's charter to accomplish. I would recommend that anyone interested get involved with PIER; information on the PIER mailing list is available at: http://www.isi.edu:80/div7/pier/papers.html We also have a block scheduled at the LA IETF, tentatively on Wed. March 6. - paul At 06:54 PM 2/17/96 -0800, Craig A. Huegen wrote:

The problem, you ask? I don't see very many resources available which help ISP's to renumber more easily--time line planners, reminder lists with commonly-missed parameters, etc.

I realize that renumbering is a fact of life--my last post, however, shows my true feelings regarding most pre-CIDR blocks; that their providers should be willing to allow customers to keep using the space they allocated in the pre-CIDR days.

If there are these renumbering resources available, make sure that the small and big providers alike are making them available to the customers who are willing to attempt a re-number. Make sure the customer service of the provider is willing to deal with the complexities of renumbering (and keep in mind it _IS_ a very complex project--EVERYTHING from IP addresses to static routes to applications which are hard-coded). Unfortunately, the ISP that I saw change providers didn't have this help at their fingertips--they could have potentially saved almost all of the customers they lost.