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Old 01-22-2009, 04:02 PM   #1
LQ Newbie
Registered: Sep 2005
Posts: 9

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Unable to connect to my campus' network. (DHCP problem?)

Hi, I recently returned to college, and have been having a spot of trouble getting linux installations to access the internet. Strangely enough, I installed debian from a net-install disc just fine, getting an ip via dhcp and connecting to the repository--but I could not connect to the internet, or the campus network afterwards.

I'm presently running Fedora 10, my motherboard is an a8n-sli premium, with two onboard nics, I am plugged in to the nvidia onboard network controller. I can (and am currently) connected to the internet through the dorm network on a windows install on the same computer.

Please help me get to the bottom of this problem so I can use a proper operating system!

Thanks in advance.

Here is some information which I've collected that seems relevant.

[root@home n1k]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
xxx.69.0.0   U     1      0        0 eth1

[root@home n1k]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:15:F2:37:32:C7  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:23 Base address:0xe000 

eth1      Link encap:Ethernet  HWaddr 00:15:F2:37:38:5D  
          inet addr:xxx.69.0.47  Bcast:xxx.69.1.255  Mask:
          inet6 addr: fe80::215:f2ff:fe37:385d/64 Scope:Link
          RX packets:102 errors:0 dropped:0 overruns:0 frame:0
          TX packets:20 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:16152 (15.7 KiB)  TX bytes:4923 (4.8 KiB)

lo        Link encap:Local Loopback  
          inet addr:  Mask:
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:26 errors:0 dropped:0 overruns:0 frame:0
          TX packets:26 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1880 (1.8 KiB)  TX bytes:1880 (1.8 KiB)

[root@home n1k]# nm-tool

NetworkManager Tool

State: connected

- Device: eth0 ----------------------------------------------------------------
  Type:              Wired
  Driver:            forcedeth
  State:             unavailable
  Default:           no
  HW Address:        00:15:F2:37:32:C7

    Supported:       yes
    Carrier Detect:  yes

  Wired Settings

- Device: eth1 ----------------------------------------------------------------
  Type:              Wired
  Driver:            skge
  State:             connected
  Default:           yes
  HW Address:        00:15:F2:37:38:5D

    Supported:       yes
    Carrier Detect:  yes
    Speed:           1000 Mb/s

  Wired Settings

  IPv4 Settings:
    Address:         xxx.69.0.47
    Prefix:          23 (
    Gateway:         xxx.69.186.7


[root@home n1k]# ping
connect: Network is unreachable
Old 01-22-2009, 08:01 PM   #2
Registered: Jan 2009
Location: Pennsyltucky
Distribution: Debian, Ubuntu, DeLiLinux, others
Posts: 144

Rep: Reputation: 19
Post your lsmod and


$/etc/init.d/network restart


You might want to
$ifconfig eth1 down
before you restart the network, but you shouldn't have to.

See what happens.
Old 01-24-2009, 03:31 PM   #3
LQ Newbie
Registered: Sep 2005
Posts: 9

Original Poster
Rep: Reputation: 0
Hi, thanks a lot for the quick reply. Apparently the problem was server side, with how IPs were assigned by DHCP as most recently, when I booted to try and fix it. I managed to connect just fine.


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