[SLE] Cable Modem - DHCP

From: Martin Love (martin.love_at_skynet.be)
Date: 08/19/04

  • Next message: Johan Nielsen: "Re: [SLE] Disk order swapped under 9.1" 
    Date: Thu, 19 Aug 2004 10:45:35 +0200
To: suse-linux-e@suse.com

    Hi Jerry,

    Thanks for your help.

    I'm sorry but I'm a real novice at Linux and I'm not sure how and what I

    should put in the Routing section of YaST2.

    Here is a copy of what "netstat -nr" showed after I got the internet etc

    working.

    SuSe:/home/lovem # netstat -nr
    Kernel IP routing table
    Destination Gateway Genmask Flags MSS Window irtt
    Iface
    192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0
    eth0
    81.83.48.0 0.0.0.0 255.255.248.0 U 0 0 0
    eth1
    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 81.83.48.1 0.0.0.0 UG 0 0 0
    eth1

    Again any help very much appreciated.

    Thanks in advance for your help.

    Martin

    On Wednesday 18 August 2004 17:29, Jerry Feldman wrote:
    > On Wed, 18 Aug 2004 11:21:31 +0200
    >
    > Martin Love <martin.love@skynet.be> wrote:
    > > Hi I'm new to Linux and would really appreciate any help or

    direction.

    > > Here is the problem I'm having :-
    > >
    > > I have SuSe Pro 9.1 installed on a PC with 2 nic. One of the nics is
    > > built into the system board and the other is a 3Com 3C905B-TX.
    > >
    > > The Build in nic is attached to a cable modem supplied by Telenet
    > > (Belgium) and has DHCP enabed.
    > >
    > > The 3Com is connected to a second PC with a fixed IP address

    assigned.

    > > Eth0 3Com Fixed IP Address LAN
    > > Eth1 Built-in DHCP WAN

    (Cable Modem)

    > > When I boot the Linux PC I can't access the internet or email. I
    > > checked the config using "ifconfig" but it did not show the built in
    > > nic with DHCP enabled. I then ran YaST Control Center, Network

    Devices

    > > and disabled DHCP and then re-enabled DHCP on the built in nic.
    > >
    > > I then checked "ifconfig" again and this time everything seemed ok

    and

    > > when I tried to connect to the internet everything was working fine.
    > >
    > > So now everytime I reboot I have to disable and then re-enable the
    > > DHCP setting for the built in nic before I can use the internet or
    > > email.
    > >
    > > As I said I'm very new to Linux and I hope that the above make

    sense.

    > The issue is a routing issue. Your routing table probably has the
    > default route going to eth0. From the command line, run the netstat
    > command:
    > netstat -nr
    >
    > By reenabling DHCP, the routing table is reset.
    > You can go into YaST2, and set up the routing such that the default
    > route always goes to eth1 since eth0 is strictly the LAN.

    ------------------------------------------------------- 

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