cvs commit: src/etc network.subr src/sys/netinet6 in6_ifattach.c

[Bruce M. Simpson]

This is good.

The number of times nd6_attach has inadvertently caused a panic in a 
driver I've been in the process of bringing up (and forgetting to turn 
NDP off during development) has been enough to make me swear quite a bit.

Thanks!
BMS