Linksys Router problems using fixed IP's

Billl · Joined: Dec 17, 2002 Posts: 32

I have a Linksys router model no. BEFSR41 4 router/swtich. And I would like to be able to use fixed IP numbers with it instead of the usual DHCP configuration. Every time I have tried to do this I can see my internal network just fine (using netbeui for file and print sharing) but I can't connect to the internet. All the machines are running some version of Windows 9.x. If I turn of DHCP in the router and then set fixed IP's on the machines like 192.168.0.1...6 no internet. If I let DHCH do the same job, same IP range no problems. What gives here what am i missing?

Thanks,

Bill

swelande · Joined: Dec 18, 2002 Posts: 2

I'm using that same router in a W2K/WinNT/W98SE environment. Most of my machines are set up DHCP like the router except the one I use to VPN to work. On that machine, I have selected an IP that is outside the range I have set up for DHCP on the router. Your router probably needs to stay DHCP so it can get an IP address from your ISP, but you can set up your individual machines to be fixed IP. That has worked for me. Your mileage may vary.

Jeremy · Joined: Dec 05, 2002 Posts: 302

Most of the routers I have seen (SOHO) have 2 settings for DHCP, 1 for the router to obtain the ip from through the modem via DHCP and another option over in the IP config area of the router where you can set the router to dispense IPs via DHCP or statically. I would recommend using the MAC address if possible.

Unfortunately, I dont have that model or really remember working with it so anything I say is just speculation. Smile

I tend to talk a lot, most people just ignore; to their benefit of course!

Jeremy

Billl · Joined: Dec 17, 2002 Posts: 32

I hadn't thought about the fact that turning it off would also stop it from getting an IP from my ISP. I'll give that a try. So you just set your DCHP to 0 clients and then set your IP's on the various machines to what ever you want them to be in the 192.168.0.x range?

swelande · Joined: Dec 18, 2002 Posts: 2

How I'm set up is on the "Setup" screen, under WAN connection I have selected "Obtain an IP Automatically"
then on the DHCP screen I selected my Starting IP address and set my maximum number of users at 3 (I have 4 PCs on my network, 3 of which use DHCP and one where I'm using a fixed IP address)
On the PC side, for the 3 using DHCP, I've got my TCP/IP settings set to DHCP and my other one set with a fixed ip address. On the one with the fixed IP address, on my TCP/IP settings, you need to manually put in your gateway IP address (192.168.1.1 is the default for this router) along with your DSN servers. Then after a reboot or two, the fixed IP address should be able to see the world.

goretsky · Posted: Thu Dec 19, 2002 8:36 pm Post subject:

Hello,

I am using a Linksys BEFSR41 Cable/DSL Router with 4-port switch with DHCP disabled without any problems.

Here's what I did to set things up:

In the router's web configuration:

On the 'Setup' tab, have "LAN IP Address:" set to "192.168.1.1"
On the 'Setup' tab, have WAN Connection Type:" set to "Obtain an IP automatically"
On the 'DHCP' tab, have "DHCP Server:" set to 'disable'

On the computers attached to the LAN:

Set IP their address to 192.168.1.xxx.
Set their gateway to 192.168.1.1.
Set their DNS servers to my ISP's DNS servers--not the Linksys router's IP address.

That seems to work on my LAN. One suggestion I have for you is to not use the 192.168.0.xxx range but instead use 192.168.1.xxx or higher. I've noticed somtimes networking gear does does not handle zeros well as part of their IP addresses.

Oh, I am also using the latest available firmware on the router (v1.44). If you haven't upgraded yours you might want to try doing this as well.

Regards,

Aryeh Goretsky

Billl · Joined: Dec 17, 2002 Posts: 32

I think you guys hit my problem on the head here. I don't recall setting a defalt gateway and that was probaly the thing that was tripping me up here. Oh yea I missed typed there I am using a 192.168.1.xxx. I'm pretty gun shy about flashing the router I toasted a perfectly good modemm doing that one time. I only flash now if I can't find another solution.

Thanks for all the help guys,

Bill

Billl · Joined: Dec 17, 2002 Posts: 32

Well I just tried it on one of the other boxes and it worked great. I left DHCP on for now and just set an IP out of the tables range. One thing you didn't mention to setup DNS you have to specify a host name for it to work. I just used something I dreamed up and it worked. Can anyone expand on what exactly Windows is looking for here? Or in other words did I just get lucky or doesn't it matter what you call it?

Jeremy · Joined: Dec 05, 2002 Posts: 302

If you are referring to the routers DNS servers, they are assigned via dhcp from your cable/dsl modem. Assuming you will be using dhcp for router to modem.

The clients on your network, will need the local ip address of your router as the default gateway and dns servers if you are NOT using dhcp on your clients. If you are using DHCP on your systems, they will pull everything from the router.

Pros and cons to both.

Luck.

Jeremy

Maxwell · Joined: Dec 08, 2002 Posts: 81

The hostname is the equivelent of a computer name, just used with TCP/IP. It doesn't matter what you use.

Maxwell

Billl · Joined: Dec 17, 2002 Posts: 32

Yup I see that now.

Thanks again,

Bill

tots71 · Joined: Aug 18, 2007 Posts: 1

i tried to config linksys router cable/dsl router model no. BEFSR41....its work only in network but in browsing internet connection is badly cause its very slow and sometimes never been connected.........

i hope u guys can help me of this problem..

my os windows is xp prof...

thanks in advance....

tots71

zlim · Joined: Mar 11, 2005 Posts: 2636

I suggest you start a new thread rather than resurrecting a 5 year old one.
When you ask for help, state what modem you are using the Linksys router with - it does make a difference and if you are on cable or dsl. Some dsl modems are also routers so you might have two NAT devices and that's why your computer has no internet connection (WAN) only LAN.