When firewall rule is set to reject connection there is option to choose which message to be send with reject. It would be nice to have an option to set custom message.
what do you mean saying ‘custom’? =)))))
these are messages which are supported in ICMP protocol, not more 
i think redirect to custom web bage in server or on rb
hmmm… i’d like to redirect all Torrent connections to custom webpage =)
no problem to do that, of course only for www requests.
for other traffic - how do you think that would work? it’s just not possible. did you imagine it like when somebody pings and illegal address, his browser would be opened and a website displayed? no way …