I am using the captive portal at a coffee shop to bring up a splash page 
and basically give the coffee shop props for supplying free wifi as well 
as people acros the street using unlimited wifi for p2p.  One problem we 
are having is that people arent smart enough to realize they need to go 
through a browswer/cap portal to gain access to the internet.  So people 
are assuming that the internet isnt working when they cannot access 
their pop3 email through their email account, or why itunes isnt 
working.  so, my question, is can we just allow certain things through 
without cap portal,  since this is a free service im not worried about 
people sneaking around.  Also I could just throttle ssh/pop3/and these 
other services so if someone were to not utilize the cap portal page, 
their speeds would be much less.  So if someone to raise their hands in 
vicotry becuase he or she is sending all their traffic through mail 
ports, then they'd be successful at a 56kbit connection ;)


anythoughts?

Chris