>> 	I would like to rename a sysctl MIB, to synchronize with KAME tree:
>> 	old: net.inet6.ip6.bindv6only
>> 	new: net.inet6.ip6.v6only
>> 	this synchronizes the sysctl MIB name with the related setsockopt name
>> 	(IPV6_V6ONLY).
>> 	The change would break existing shell scripts (if there are scripts
>> 	using this sysctl MIB).  will such change considered acceptable?
>> 	or should I just forget about the rename and leave it as is?
>> 
>> 	the old name appears in 1.5 tree too (not just netbsd-current).
>rename it, and keep the old one if COMPAT_15 is defined...

	you mean i should put #ifdef COMPAT_15 in sys/netinet6/in6.h
	(IPV6CTL_NAMES declaration)?  not sure if that's okay...

itojun