Wietse Venema wrote: > If we generalize address wild-card patterns beyond DNSXL lookups, > then we have to support IPv6. There, a printable address form has > up to eight numeric fields separated by ':'.
There is another issue with the notation of IPv6 addresses if the
proposed syntax is generalised for other uses. In a context where port
numbers are used, the IPv6 address is generally placed in square
brackets, followed by a colon and port number. Using square brackets
for IP enumeration in the same context might confuse some people.
This could (for example) lead to constructions such as
[2001:610:1108:[10,11]::[135-13f]]:[25,587]
Of course this notation can be explained; but choosing some other
notation might avoid future confusion. Not allowing this construction
in a context with port numbers would take care of this as well.
Johan
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