K 10
svn:author
V 3
rrs
K 8
svn:date
V 27
2009-01-06T13:27:56.750930Z
K 7
svn:log
V 227
Addresses Roberts comments on comments. Also adds
the KASSERT and checks suggested.

Reviewed by:	The udp tunneling was discussed on net@ under the
                thread entitled "Heads up -- Thinking about UDP and tunneling"

END