SMC Networks Barricade SMC2404WBR User Manual page 82

your web server using its domain name (for example: www.smc.com)
b) You must have the domain name translate to the WAN IP of the router
c) When plugged directly into the router, you must use the internal private IP of the server in order to
access its web resources
If you still cannot access your web server through the router after opening port 80, change the
"Public Port" option to 50 instead. Then have your clients try to connect to the server using the
http://WAN_IP:50
If you still cannot access your web server after changing to a non-standard port, connect your
machine directly into the modem and then see if your server works.
If you cannot access the web server through a direct connection from the modem to the computer:
a) This is due to some viruses that use port 80.
b) You can set up the Virtual Server in the router to forward your web server to a different public port
(i.e. – 50). This way, your WAN users can access the web domain by typing in http://www.smc.com:50
(note: some domain hosting sites will automatically route the domain to port 50 for you – check with
their Help Desk for more info)
Basically the client would enter your WAN IP as usual, however, since the public
port is now 50, they must also enter a colon, and then type in 50.
Check with your ISP regarding info on port 80. They are most likely blocking all
traffic through this port