On Tue, 19 Oct 1999 15:40:12 -0400 (EDT) 
 Phil C <pchampon@sefl.satelnet.org> wrote:

 > Sorry to repost, but the subject was incomplete, therefor I assumed that
 > people would not bother looking over it ...

this is pilot error; IP Filter is already in your kernel.  Why are you
trying to then also load the IP Filter LKM?

 > bsd# modload -v -d ./if_ipl.o 
 > ld -A /netbsd -e _if_ipl_lkmentry -o ./if_ipl -T 0 ./if_ipl.o
 > /netbsd: Definition of symbol `_fix_outcksum' (multiply defined)
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        -- Jason R. Thorpe <thorpej@nas.nasa.gov>