Linksys BEFSR41 Routers Question... - Tech Support Forums

NDC · February 21st, 2002, 02:22 AM

Is there a way of putting more than one IP in DMZ? Or perhaps disabling the router firewall?

**GroundZero3** · February 21st, 2002, 10:48 AM

i think in the back of the manual its says only one computer can be inserted into the DMZ host

*found this

Quote:

What is DMZ?

Demilitarized Zone (DMZ) allows one IP Address (computer) to be exposed to the Internet. Some applications require multiple TCP/IP ports to be open. DMZ allows just one computer to be exposed for that purpose. It is recommended that you set your computer with a static IP if you want to use DMZ.

so to answer your question nope, just one.
oh yeah if you disable the firewall isn't that just disabling NAT? which in a sense if you turn off NAT none of the computers can get online? cause NAT is what shares it out? (correct me if im wrong)

JaYsin

jkrohn · February 21st, 2002, 10:51 AM

What are you trying to do that needs to get around the firewall?

Jkrohn

NDC · February 21st, 2002, 11:09 AM

Yes, I'm aware that only 1 system can be in DMZ, but was hoping there may be a trick around to get more than one IP in the DMZ...

Just tired of having to forward ports to do things such as play some online games, netmeeting... Even with all the ports that netmeeting requires to work forwarded, I'm able to make calls but can't accept them. Same thing with certain games... And I know it isn't a problem with this router because I've tried this on other Linksys routers as well...

knucklebusted · February 23rd, 2002, 12:51 PM

Hmm, I suspect that part of the problem is that you are attempting to make inbound connections to two different computers with possibly the same apps/ports. That would surely cause problems even if you could get it the router to take the config.

I know that in order to get some things to work with my PIX, such as VPN, I had to allocate a seperate IP address to those users that needed pure NAT (Network Address Translation, as in 1 internal converted to one external) over what is usually termed PAT (Port Address Translation)

That's not what you wanted to hear but maybe it restates the issue as I understand it. Correct me if I'm wrong.

DVNT1 · February 23rd, 2002, 10:28 PM

Quote:

Or perhaps disabling the router firewall?

If disable NAT then you would need a public IP address for each computer. An alternative, get a second public IP address (some ISPs give you two anyway) and use a small hub in front of the router. Then connect the PC with Netmeeting to it and the other computers to the Linksys. If you wanted to share files with all computers then add a second NIC to the Netmeeting computer and connect it to the Linksys router too. Make sure you delete the default gateway added by the Linksys with either a startup batch file or just by manually assigning the LAN IP address to the NIC. I would suggest running ZA or something similar on the Netmeeting computer too.