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Thread: Unable to ADSL Router

  1. #1

    Default Unable to ADSL Router

    I originally had a WRT54G working together with ADSL Router DSL-500T and everything was fine. The wireless router stopped working yesterday and I'm hooking up my computer to the ADSL router directly.

    I tried everything but my computer just won't hook to the ADSL router. I can't even ping the web address of the ADSL (192.168.1.1). I tried to change to static IP address like what I did with DSL-302G but it didn't work. If I select dynamic, I get this message when I run:

    Code:
    samson-2:~ # /sbin/ifup eth0
        eth0      device: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
    Starting DHCP4 client on eth0. . . . . . . .
        eth0      DHCP4 continues in background
    The route -n result is
    Code:
    samson-2:~ # route -n
    Kernel IP routing table
    Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
    192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
    169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 eth0
    127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
    0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0
    My ifcfg-eth0 file looks like this:
    Code:
    BOOTPROTO='dhcp'
    BROADCAST=''
    ETHTOOL_OPTIONS=''
    IPADDR=''
    MTU=''
    NAME='RTL8111/8168B PCI Express Gigabit Ethernet controller'
    NETMASK='255.255.255.0'
    NETWORK=''
    REMOTE_IPADDR=''
    STARTMODE='auto'
    USERCONTROL='no'
    DEVICE='eth0'
    PREFIXLEN='24'
    what do I do wrong?

  2. #2
    Join Date
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    Default Re: Unable to ADSL Router

    I just had a look at your ADSL routers manual and it says to use a Straight Through cable (should be supplied) when connecting it to a pc directly. The cable you had going to the Netgear router should be a cross-over cable.

    Try and swap the cable for a straight throught cable if this is the problem.

    Check the manual here at page 19.

    It says:
    Use standard twisted-pair cable with RJ-45 connectors. The RJ-45 port on the Router is a crossed port (MDI-X).
    Follow standard Ethernet guidelines when deciding what type of cable to use to make this connection. When
    connecting the Router directly to a PC or server use a normal straight-through cable.
    You should use a crossed
    cable when connecting the Router to a normal (MDI-X) port on a switch or hub. Use a normal straight-through
    cable when connecting it to an uplink (MDI-II) port on a hub or switch.
    If you know your ethernet works and you can't connect to a working modem then I would usually query the connections.

    Hope this works.
    "To err is human... to really foul up requires the root password."

  3. #3
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    Default Re: Unable to ADSL Router

    Oh yeah, I was also going to say why not buy a ADSL modem and wireless router in one? They are not that expensive anymore. I don't know where you live but here in Ireland you can pick up a the excellent Netgear DG834G for as little as 60 euro.

    One less device to compicate your connection. Also, with most ISP's you can get a free wireless modem when you sign up. Maybe change providers for a better package and a free wifi modem.
    "To err is human... to really foul up requires the root password."

  4. #4
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    Default Re: Unable to ADSL Router

    Quote Originally Posted by mdmgreen
    I originally had a WRT54G working together with ADSL Router DSL-500T and
    everything was fine. The wireless router stopped working yesterday and
    I'm hooking up my computer to the ADSL router directly.

    I tried everything but my computer just won't hook to the ADSL router.
    I can't even ping the web address of the ADSL (192.168.1.1). I tried to
    change to static IP address like what I did with DSL-302G but it didn't
    work. If I select dynamic, I get this message when I run:
    <snip>
    what do I do wrong?
    Hi
    When you setup the WR54G did you put the ADSL modem in bridge mode and
    use the WRT54G features?

    If so, then there should be a reset button to restore the defaults on
    the modem, use this and try again.

    --
    Cheers Malcolm (Linux Counter #276890)
    SUSE Linux Enterprise Desktop 11 (x86_64) Kernel 2.6.27.29-0.1-default
    up 1 day 21:23, 2 users, load average: 0.10, 0.10, 0.09
    GPU GeForce 8600 GTS Silent - CUDA Driver Version: 190.18


  5. #5

    Default Re: Unable to ADSL Router

    I am using a crossover cable.

    Do you think I might have configured the network wrongly?

  6. #6

    Default Re: Unable to ADSL Router

    I mean I have tried both the crossover and the straight through cable to hook up to the adsl. It doesn't work. But both cables work fine with Windows box.

  7. #7

    Smile Re: Unable to ADSL Router

    I gave up trying to figure out the DSL-500T and was thinking of reinstalling the old OpenSuse 10.0. I bought an all in one DSL-2640t. But, unexpectedly, everything goes back to normal! I configured the new modem/switch from my Linux box.

    By the way, reset buttons on both WRT54G and DSL-500T didn't work. I had to reconfigure the DSL-500T from bridge to PPPoE mode. After this incident, I won't be getting separate router and modem anymore.

    Thanks for everyone's help!

  8. #8
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    Default Re: Unable to ADSL Router

    Glad it worked out for you. 1 device is always simpler than 2
    "To err is human... to really foul up requires the root password."

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