> As far as snoop is concerned, the ipnet header is the link-layer header.

Ick.

 > I'll need to look further into this, but it doesn't seem to be broken
 > for all filters.  For example, the following works just fine:
 > 
 > bash-3.2# snoop -I bge0 -U tcp port 22
 > Using device ipnet/bge0 (promiscuous mode)
 > strat.East.Sun.COM -> whitestar1-6.East.Sun.COM TCP D=22 S=64519 Syn 
 > Seq=2995106985 Len=0 Win=49640 Options=<mss 1460,nop,wscale 0,nop,nop,sackOK>
 > whitestar1-6.East.Sun.COM -> strat.East.Sun.COM TCP D=64519 S=22 Syn 
 > Ack=2995106986 Seq=3047980435 Len=0 Win=49640 Options=<mss 1460,nop,wscale 
 > 0,nop,nop,sackOK>

As per my example, I also had no problem udp port number filtering.

-- 
meem

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