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Switch Vs. Router DMZ-type question

nboy22

nboy22

Diamond Member
I just recently bought a 5 port switch (the current thread in hot deals section) http://forums.anandtech.com/showthread.php?t=2064983

It's a trendnet TEG-S50G for those of you who are too lazy to click the link.

What I'm wondering is this:

I usually use my router to DMZ to a local IP address of one of my computers. I'll use the example of VNC. From a computer at my work, I enter my Public IP Address that is assigned by cox communications into my VNC client, and it forwards through the router to the computer I have DMZ'd on the router.

Now I have never dealt with switches before, so I am confused as to how this set up would work. Let's say I get rid of my router completely, and just have the switch hooked up directly to the motorola modem. Is there some sort of special configuring I need to do since I will only have one public IP address from cox? How will the switch know which computer to forward the outside information to?

Edit: Just to be clear, I know the DMZ is mainly to bypass the firewall, and a switch doesn't have a firewall. I am just confused as to how the switch will take info coming in from public IP, and translate it to which local address that should be its final destination.

Thanks for all the help!
 
Last edited:
You need a Router a switch can not Route.

If you can connect to different computer behind a router by changing the listening port of the application on each computer.

For example read this page (toward the end, Using VNC to Control a specific LAN Computer through the Internet. ), http://www.ezlan.net/vnc.html

.
 
JackMDS said:
You need a Router a switch can not Route.

If you can connect to different computer behind a router by changing the listening port of the application on each computer.

For example read this page (toward the end, Using VNC to Control a specific LAN Computer through the Internet. ), http://www.ezlan.net/vnc.html

.
Click to expand...

Cool thanks, you'll have to excuse my ignorance when it comes to switches. I know so much about computers but just have never had the opportunity to play around with switches. I'll take a look at that when I get home here soon.
 
Switches are usually 'dumb', unless they are managed, and just route traffic. Routers are the ones that route, like Jack mentioned.
 
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