I read the man pages of ettercap and it said the target can be in form of
MAC/IP/PORTS

Ok...
to all my dear darklords ...I have 2 basic questions..which , I request some help to :
<> I specify mac addresses /MAC/ /MAC2/ it says Invalid IP range. So how do you specify them or that's not allowed.
<>More imp one : I would like to SNIFF NOT ALL BUT JUST PACKETS OF PORTS # 80 AND 443 FOR SPECIFIC IP RANGE.
I thought his would convey the information :
ettercap <options> /IPort1,port2/ /IP2:Port1,port2/
but it does not like that format too.
Can someone please lemme know if that is poss and how .
MANY THANKS
S