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Change IP addresses from 192.168.1 to 10.0.0 range

Discussion in 'Cisco/Linksys Wireless Routers' started by TadCook, Sep 22, 2004.

  1. TadCook

    TadCook Network Guru Member

    I've been trying to VPN to work, and the sysadmins there tell me I can't use IP addresses on my home LAN in the 192.168 range, but must configure them like 10.0.0.1. But when setting up the WRT54G, if I go to http://192.168.1.1/Filters.asp and click on Edit List of PCs, all of the addresses must be in the 192.168.1.101, 192.168.1.102 type range.

    From the Basic Setup page at http://192.168.1.1/index.asp, I tried changing the local IP address to 10.0.0.1, but then can't make it work at all.

    Is there any way to allow me to configure my PCs as 10.0.0.101, 10.0.0.102, 10.0.0.103, etc, and the router as 10.0.0.1?
     
  2. Toxic

    Toxic Administrator Staff Member

    did you change the WRT54G IP to a 10.x.x.x number first?
     
  3. TadCook

    TadCook Network Guru Member

     
  4. can't access router after changing IP address

    Greetings. I have a similar problem. I want to add my wrtg54 v.1 router to a fully functioning wireless network, and I can't seem to get past the change of ip address. For example, from the setup screen, I change the LAN side IP address to 192.168.11.5 - I am unable to access the router thru that address without rebooting the router to default settings again. I do reset the computer I'm using to set up the router (tried with 3 different pc's), I power cycle the router, and I've tried doing it with stock, hyperWRT, and Satori 4.0 firmwares - so I'm sure I'm missing something basic here. Any suggestions? Thanks in advance.
     
  5. Lazybones

    Lazybones Network Guru Member

    You probably did things a little out of order. In order to access the admin page after changing the routers IP you must also have a matching address for your computer in the same range.

    Try it in this order.

    1. Change the routers IP from 192.168.1.1 to 10.0.0.1. After you hit save the router will not respond because its IP has changed.
    2. Power cycle the router just to make sure all of its services take the new IP.
    3. Power cycle your computer. You should get a new IP in the 10.0.0.X range.
    Assuming you are using DHCP on the router, if not change your computers IP from its 192.168.1.X number to a 10.0.0.X number and remember to update the gateway setting from 192.168.1.1 to 10.0.0.1. You only need to do this part if you are NOT using DHCP on the router.

    4. Attempt to log into the router from http://10.0.0.1

    5. You will need to power cycle OR release and renew the IP of all of the computers on your local network if they use DHCP, if not you will have to go change all of the settings manually.

    If you ever to a full reset on the router it will go back to using the 192.168.1.X range by default.
     
  6. TadCook

    TadCook Network Guru Member

    Hey, I wanted to check in and say that I recently solved my problem.

    The reason I couldn't use the ip address that is default for the router and still do VPN is because our office network currently uses that same range of IP addresses. Because so many employees have problems with this at home or on the road, they are planning to change IP addresses, but haven't yet.

    I discovered that the reason I couldn't make anything work by setting the router to 10.0.0.1 is because that address is already used by my DSL modem.

    So all I had to do was pick another IP address range from one of the private IP ranges. I chose an IP address starting with 172.27.9.100, and it worked right away with no tweaking. I enabled DHCP, and the router handed out IP addresses in that range immediately. It works flawlessly ever since, and I can sit anywhere in the house with my wireless laptop or be on any of our desktop PCs, and VPN into work, almost like I am there.

    By the way, according to Scott Mueller's UPGRADING AND REPAIRING NETWORKS, private IP addresses are in these ranges:

    10.0.0.0 to 10.255.255.255.255
    172.16.0.0 to 172.31.255.255
    192.168.00 to 192.168.255.255

    Because these addresses are not valid on the internet, they can be used by multiple private networks.
     
  7. hookerxy

    hookerxy Network Guru Member

    Well Great Post, I give it a Try again.

    It was one of my first things that I tried to change the IP Adress, but not succesfully. Spend around one hour with that.
     

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