Static IP/Dynamic/NAT Problem

I want to set up a Static IP for my computer from my Trendnet TEW-452BRP Router. I also want to enable NAT. But on the screen for enabling NAT, it is greyed out and i dont understand how to set up a Static IP I also just realized the text boxes to enter in info for the static is also blanked out. I did it on an old westell router/verizon modem at a relatives house, but i cant do it at my router. Can someone please help me do this? Ill attach screenshots.

 

Wow..Trendnet's config. pages looks clean and nice!

So ur saying u cannot enter any info. in those areas. I am thinking that u may not be logging into the router with an "Admin" user account. Maybe the account u are logging in w/ doesn't have permissions to change those settings. So i'm guessing ur logging in with a username of "User". !?!?

After all, it wouldn't make sense for the router to have those settings if it didn't support them. So i'm sure that's the case.

Edit: Try looking under the access and management pages to see what can be changed that might give u the ability to make changes.

 

Im logging in with admin...

Check my new screenshot...

Which one of those options should be selected? The one that is currently chosen is the default. Thanks.

 

Nothing there to grant u any permissions etc. Let me see the Management section please!

 

uhm, what....?

Wait a second...you want to set a static IP for your computer....you're in the wrong device, jack.

The numbers you're looking at here are for setting static routing tables and static information for the router.

I don't know what you are trying to do, but you set the static ip for your pc in the connection status.

If your router is set up with a ip address of, let's say 192.168.1.1, and your subnet mask is 255.255.255.0, then any ip address within the range of 192.168.1.2 to 192.168.1.254 will work.

The ip address settings in your router have nothing to do with this...you may setup a dhcp range of 192.168.1.2 to 192.168.1.20, but if you set up a static ip on your pc with 192.168.1.30, it will connect. (unless you have blocked it otherwise)

I'm afraid you really are misunderstanding what the router settings are all about

 

Ok, so will you guide me how to do it? Can you tell me what setting im supposed to be under and how to do it, because i dont know how.

Managment section has to do with remote managing of the router.

 

I don't even know what you want to do, so I cannot walk you through it.

What is your ultimate goal here--to simply set a static ip address on your computer? Why? You need to provide more than what you have so I can make a suggestion.

Why did you do it at your relative's house--and what do you think you really did, because if you were playing in the router, you didn't just set a static ip address for your relatives pc.

 

Okay, well I have no idea why u cannot configure those settings. Other possible remedies...upgrading to the latest firmware and/or resetting the router...Good Luck!

 

If the router is in router mode NAT is active, nothing needs to be changed.

To setup the pc you will need to launch your network connections (CP), select your port then properties. from the list choose Interent protocol (TCP/IP). there is where you setup static.

Why do you want static? All routers I have worked on will assign the same IP every time unless the router is rebooted. Then id the devices are started up in the same order it will get the same IP address.

I use what is called reserved IP or IP mapping. This allows your DHCP server to assign IP'a based on MAC address. This is better than static, because you can always get out. On static if you ISP changes a server (DNS) you will have to change your settings.

 

Not all routers allow reserved IP addresses. I briefly looked at his manual and didn't see that as an option for his--it could be there, didn't spend much time with it, though.

As for routers assigning the same IP address everytime...that very much depends on the ip lease time.

Routers will "hold" an ip address for a given mac address for X amount of time, called a lease time. So, even though the computer "leaves" the network (ie turned off), when it returns it can get the same ip address back if the lease is still good.

Advanced routers allow you to set the lease time; cheap ones have a default value.

If you have a very busy network, the lease time is very short because you cannot afford to have your limited pool of ip addresses tied up to machines that may not return. A low business network, you tend to set the lease time long.

When you turn your computer on, the first thing it does is contact the DHCP server on the network and tell it who it is, and what it's old ip address was--the dhcp server responds with a message essentially saying, "yep, the last time you were on and now are still within the lease period so I was holding it for your--here you go!" or "Sorry, bub, you were gone too long, but here is another ip address."

What I always do is set the dhcp ip scope to a range, and then simply set the pc's ip address statically outside that range. Every router I've ever seen will allow that.

So in my case, I have a small network at home with a file server with AD and DHCP, another computer set up as a firewall, another as a router. These are all static ip machines. 192.168.0.1 thru 192.168.0.3 and the dhcp scope for the individual home computers runs from 192.168.0.5 thru 192.168.0.50, and the lease time is set very short.

As computers come on and off the network, they get one of those in the scope ( I repair computers for a living, so the pool is not so large, but the lease time is short so after a computer does not reappear on the network for several days, another machine can take the recycled ip address)

Anyway, I've got a feeling the OP wants to set up some sort of game server or something, which means were then going to also be doing port forwarding or maybe putting his computer in the DMZ or something...but without more information, we're just spinning our wheels

 

Ok. Well on the router i did it on, it said set a static IP for a device on the network. So when i clicked that button, it gave me a list of the devices on the network. I chose mine. So, since then i have had a static IP as far as i know and the program im using no longer said i had a NAT problem.

Here is what the troubleshoot page says on the program...
To Fix your NAT Problem:

There are several causes reachability problems:

* Routers/Broadband modems

a) Devices without UPnP or NAT-PMP
1. you have to set your PC to a static IP (i.e. don't use DHCP) or use your router's MAC-address binding to allocate a specific IP to your network card
2. log into your router (if you don't know its address read the manual or determine the gateway address, which should be the address of your router)

I bolded the place where it says it. Does this help>?

 

WHY are you trying to set a static IP for your PC? What problem are you trying to solve?

Are you not connected? Are your trying to connect from outside? You need to read what people are telling you and answer questions if you want help.

 

Im trying to fix the NAT problem that this program is reporting. This problem decreases speed. aFter it is fixed, speed will increase. Like it did when i did it before as i explained.

 

what program?

Getting information from you is like pulling teeth.

Here's the simple, but slighly risky solution to your problem, whatever the heck it is since you are clearly not interested in telling us.

Set the pc address as described earlier on the PC network connection to a relatively high number 192.168.1.100

Log on to the router and place the exact same address in the DMZ zone...this will essentially put your PC outside the NAT zone...it will be exposed to the Internet. Any incoming signal to your router will hit it first.

The bad part is that your PC is more susceptable to attacks this way so it needs to be properly updated and protected. It is like not having that pc behind a router at all--more or less like you only had the one pc connected directly to the modem.

If you have a program that has a nat problem, my guess is your using some sort of peer to peer program, hence your reluctance to share any real details. You make me nervous.

 

IDK...I think I have an idea of what you're trying to do (w/ the program thing; but i'm not sure)...nevertheless i'll guide u as to how to set the router in Static IP mode. Firstly u want to set ur computer w/ a static IP address. Go to Start-->Run and type cmd and hit enter; then type ipconfig /all and hit enter. Take note of ur IP information. If the first two octets of ur *IP address* start like this --> "192.168", this "10.0" or this "172.16" then it's okay to proceed. If not, then DO NOT proceed.

Ok, so if ur good to go, do a Start-->Run and type ncpa.cpl hit enter then right click on the network card u use to get on the Internet currently. Choose Properties and scroll down to "Internet Protocol", select it then choose Properties. In the list, manully enter the IP information from the command prompt. Then log into ur router and on the user guide i've attached, take a look at step 6, on page 7 of the document. Look for a section similar to that on ur router...thats says LAN and DHCP Server. And go ahead and disable the DHCP sever.

This should do what you want to accomplish!

If u have other computers connected to the router/network then manually set the IP on those by following the above procedure.

Good Luck!

 

Ok thank you Gerryf19. But since you stated that it would be open to attacks as i quoted... I dont want to put myself in that position. even though i do have security software, i dont want to test it if i dont have to. I will just leave it the way it is.

So, thanks again and sorry for being such a pain.

+rep to everyone.

 

It is not, perhaps, as big a concern as it appears.

Anyone who has a broadband network connection that is connected directly to the internet is in the same situation. You see, ironically, the very thing that is causing your issue (NAT) is actually a layer of protection.

NAT--network address translation--is the process by which your router dynamically switches your PC's ip address from private to public on the fly.

Putting your PC in the DMZ is essentially bypassing NAT altogether.

the other method is to use port forwarding to only forward one particular kind of traffic through the router directly to your PC...but we need to know what ports your program uses.

 

Follow the directions on the following link;

http://www.portforward.com/english/routers/port_forwarding/routerindex.htm