Yaroslav Tykhiy a98dc5e6a7 First, wrap the if_up() call into splimp()/splx() because
if_up() must be called at splnet or higher.
Second, set the IFF_RUNNING flag on an interface after its
resources (i.e. tunnel source and destination addresses)
have been set. Note that we don't set IFF_UP because it is
if_up()'s job to do that.

PR:		kern/27851
Submitted by:	Horacio J. PeÓa <horape@compendium.com.ar>
2001-06-03 17:31:11 +00:00
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