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There are companies that connect to thousands of other companies (see

the

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financial markets) that require unique addressing between companies with non-colliding address ranges. 10.x.x.x doesn't quite cut it.

This is not an acceptable excuse to burn PI space.

There are plenty of other Iana-L available... try using an obscure one.

I would be extremely interested if others on the list support this type of address space hijacking. The only public instance of this that I know of is WIANA http://www.wiana.org which has hijacked 1/8. Also, if other organization want to hijack IANA addresses to ensure global uniqueness, I think that it will be necessary to maintain some sort of alternative registry since many of the companies involved may connect their internal networks to more than one network using hijacked address space. It would not work if two organizations hijack the same block. I work for a company that operates a global network connecting companies in the financial services industry and we use registered IP addresses to ensure uniqueness. We have also considered hijacking the 126/8 range however I think I've managed to get that idea sidelined for the foreseeable future. Basically, none of our registered space is announced on the Internet although our network is connected very tenuously to the outer edges of the Internet. Of course, if there is support for address space hijacking, we may have to review our position. --Michael Dillon