linksys befsr41 using a Static IP

Discussion in 'Cisco/Linksys Wireless Routers' started by Anonymous, Apr 25, 2004.

  1. Anonymous

    Anonymous Guest


    I am currently living in an apartment complex that assigned me an IP address of They have supplied me with a subnet mask of, a gateway of, and a DNS to use as well.

    This works great when I enter all of this information into my box and plug it directly into the RJ45 jack, it doesn't work so great when I try to plug the linksys into it though. I run a cat-5 cable from the RJ45 jack into the WAN port on the back of my linksys, and select static IP address. Then I supply the previous information and try to access the internet. I have the linksys currently set to have the LAN IP address of I have the internal machines set to the following static information.

    IP address 192.168.1.*
    Subnet mask

    I can ping my internal machines just fine, but can not access the internet.

    A few questions.

    Do I need to change the LAN IP address of the linksys to the IP address that my apartment complex assigned me? ( Do I need to have the linksys run as a gateway or a router? Do I need to setup static WAN/LAN routing? Should I be setting my internal machines to have a different set of IP addresses? (ie. 10.*.*.*) Do I need to set the internal machines to have a different gateway (or if I need to change the LAN Ip address of the linksys, change the internal machines gateways to the linksys IP) What about DNS? Do I need to set them to the linksys IP address, or the DNS that my apartment complex gave to me?

    I have spent a LOT of hours trying to figure out a way to get this working. The ideal situation is to get the linksys to provide a NAT environment inside of my apartment to 3 machines, but the apartment complex to see the activity as coming from my one static IP address of I am willing to consider other options though.

    Any help would be appreciated.


    sorry for the double post, I didn't know where I should be posting this
  2. jdepew

    jdepew Administrator Staff Member Member


    Welcome to LinksysInfo!! Please consider joining up to keep up on the latest info!

    Regarding your situation:

    It almost sounds like they are using a similar setup to many SOHO LANs.

    To get your network connected try these steps:

    In the Basic Setup menu, on the dropdown box for Internet Connection Type you need to select "STATIC IP"

    The page will change based on that selection and allow you to enter the information you've been assigned

    Internet IP Address
    Subnet Mask

    From that point on, its going to depend a little on the model that you have and which firmware you are running.

    I would suggest changing the Local IP address of your router to something along the lines of and change the starting IP Address for your router's DHCP to or so. This way your computers will be on a separate IP range from the rest of the building.

    On the device attached to your network, configure them to use DHCP to obtain the network configuration, and you should be good to go.

    Hope this helps!

  3. Anonymous

    Anonymous Guest

    Thanks for the reply.

    Thanks for the reply,I have tried both this method as well as setup static IP addresses for the internal machines to, etc. I set the static IP address of the WAN to all of the supplied information and set the Linksys LAN address to, so that It is on a different subnet than the rest of the LAN. This all seemed logical to me. Yet it does not work. Thanks for the good ideas though, although I have already tried them!

    Anything else?
  4. jdepew

    jdepew Administrator Staff Member Member

    Try router mode instead of gateway....
  5. Anonymous

    Anonymous Guest

    quick question

    I am supposed to be plugging the cable from the wall jack into the linksys WAN port correct? (not the uplink)

    its a befsr41
  6. jdepew

    jdepew Administrator Staff Member Member

    If they were assigning IPs dynamically, I'd connect the router to their network via uplink and select router mode, disable DHCP and "Obtain IP Automatically"

    But since it seems they are assigning them...I'd be in the WAN port with those other settings just as though you were connecting via a regular ISP tha assigns Static IPs
  7. jdepew

    jdepew Administrator Staff Member Member

    Oh, and hey, Javaman, join up! Its quick, easy, and Free!!!!
  8. Green

    Green Network Guru Member

    Yes, try this. You provider may use 192.168.* addresses.
    So, configure your Linksys box for Static IP as it was already suggested and use something like as your LAN address. Use DHCP for your home PCs.
    Of course you should NOT change to router mode from gateway.

    Added few minutes later ;-)
    In case of failure - connect your PC without Linksys box and run the following command:
    'tracert -d'
    and post result here

    And finally - have they asked your computer's MAC address? If yes - find your MAC and go to 'MAC address clone' or similar page on your Linksys.

    good luck!
  9. pR0sp3ct

    pR0sp3ct Network Guru Member

    Try running the rj45 direct to your NIC , it seems if they assigned you an

    address of and a Gateway of

    and subnet etc etc....

    Its possible your already going to be behind the apartments router
    being they provided you with a ip addey and gateway
    all you have to do is set your local ip and the gateway assigned,

    I hope i read this question correctly and im not looking like an idiot
    lol g'luck to ya 8O
  10. DocLarge

    DocLarge Super Moderator Staff Member Member

    Here's another possibility;

    if you were assigned an ip address from a router your apartment complex is using (i.e., 192.168.x.x), then you might "not" be able to use alot ( or any) of your WAN enabled functions because a router (namely the apartment complex's) already has a direct connection to the internet. This, sadly, will reduce your router to acting as nothing more than a switch (pass-thru).

    Check and see if this is the situation. If so, you'll need to devise another gameplan, or find another place to live if you haven't paid first months's rent yet :) :)
  11. BubbaL

    BubbaL Guest

    My guess would be that the apartment complex is already using A router and has assigned every apartment w/ an IP address statically.Basically, this means that you already are using a router, it's just that the router is in the office of the apartments and not in yours.It should work if you were to connect it to the uplink port and change it to router mode and use DHCP for your computers, but you really don't need to as you are already protected( I think).
  12. duomenox

    duomenox Network Guru Member

    I am betting that the aprtment complex is using MAC Address filtering. Go into the setup of your router, look for the MAC address feature and click on "use the MAC address assigned to the computer you are using" (or something like that). I am guessing that they enabled your IP address, and the first time you connected, it recorded your MAC address and will only allow that MAC to use the IP you were given.

    Alot of apartments do this to stop people from sharing the single outlet with multiple computers. That way they can charge you more for another IP Address...
  13. Re: quick question

    The problem is that unlike some other routers the befsrxx series can not past on the dns requests. In the router setup page make sure to use the dns server ip(s) they gave to you. You then also have to tell your computer to use that same dns server ip.

    Router settings:
    STATIC DNS:(insert ip for dns server here)

    Router Internal network
    IP address:

    Computer settings:
    DNS:(IP address given for dns servers same as if you connected directly)
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice