Honeyd

-- one of the example. a lot more u can do with it!!

lebah# more config.sample 
create 3com
set 3com personality "3com Office Connect Router 810"
set 3com default tcp action reset
add 3com tcp port 80 open
add 3com tcp port 23 open
add 3com tcp port 1 reset
bind 192.228.X.X 3com
lebah#