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007casper
July 3rd, 2009, 12:25 PM
ethernet cable is connected. It tries to connect and then states wired network disconnected. It used to work. How can I fix this problem?

I was able to use it without a problem at home with internet connection. It worked flawlessly.

Then, I took it to the datacenter, and decided to load gadmin-bind. The instructions for gadmin-bind in a pdf suggests

sudo /etc/init.d/apparmor stop

then, I went to synaptic to load gadmin-bind, and realized I didnt have internet connection. I kept selecting the ethernet connection Auth01, and it will spin for a while and state "wired network disconnected"

It used to work at home, but I had linksys attached to it. In the datacenter I am not using linksys, and I have a static IP. I am hooking up the ethernet cable directly to the server.


ifconfig
eth0 Link encap:Ethernet HWaddr 00:1f:c6:d5:b9:90
inet addr:208.150.220.126 Bcast:208.150.220.255 Mask:255.255.255.210
UP BROADCAST RUNNING 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)
Memory:fdfa0000-fdfc0000

eth1 Link encap:Ethernet HWaddr 00:1f:c6:d5:b9:91
inet6 addr: fe80::21f:c6ff:fed5:b991/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:72 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:4320 (4.3 KB) TX bytes:2178 (2.1 KB)
Memory:fdfe0000-fe000000

eth2 Link encap:Ethernet HWaddr 00:1f:c6:d6:04:4a
UP BROADCAST RUNNING 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)
Memory:fdae0000-fdb00000

eth3 Link encap:Ethernet HWaddr 00:1f:c6:d6:03:76
UP BROADCAST RUNNING 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)
Memory:fd9e0000-fda00000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:144 errors:0 dropped:0 overruns:0 frame:0
TX packets:144 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:12100 (12.1 KB) TX bytes:12100 (12.1 KB)



ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:1f:c6:d5:b9:90
inet addr:208.150.220.126 Bcast:208.150.220.255 Mask:255.255.255.210
UP BROADCAST RUNNING 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)
Memory:fdfa0000-fdfc0000

eth1 Link encap:Ethernet HWaddr 00:1f:c6:d5:b9:91
inet6 addr: fe80::21f:c6ff:fed5:b991/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:126 errors:0 dropped:0 overruns:0 frame:0
TX packets:35 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:7560 (7.5 KB) TX bytes:10386 (10.3 KB)
Memory:fdfe0000-fe000000

eth2 Link encap:Ethernet HWaddr 00:1f:c6:d6:04:4a
UP BROADCAST RUNNING 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)
Memory:fdae0000-fdb00000

eth3 Link encap:Ethernet HWaddr 00:1f:c6:d6:03:76
inet6 addr: fe80::21f:c6ff:fed6:376/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 B) TX bytes:2178 (2.1 KB)
Memory:fd9e0000-fda00000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:318 errors:0 dropped:0 overruns:0 frame:0
TX packets:318 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:26960 (26.9 KB) TX bytes:26960 (26.9 KB)

pan0 Link encap:Ethernet HWaddr ce:ae:41:1c:41:4f
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:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)


/etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
address 208.150.220.126
netmask 255.255.255.210
network 208.150.220.124
broadcast 208.150.220.255
gateway 208.150.220.125
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 208.150.210.10 208.150.218.10
dns-search example.com


netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
208.150.220.124 0.0.0.0 255.255.255.210 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
0.0.0.0 208.150.220.125 0.0.0.0 UG 0 0 0 eth0

I try to ping my static IP, it returned...
Do you want to ping broadcast? Then -b

Why is it showing as wired network disconnected? How can I make it work?
007casper
July 3rd, 2009, 07:24 PM
*bump*
007casper
July 3rd, 2009, 10:38 PM
I checked network configuration page (https://help.ubuntu.com/9.04/serverguide/C/network-configuration.html)

The example shows that /etc/network/interfaces


iface eth1 inet static
address 192.168.0.2
netmask 255.255.255.0
gateway 192.168.0.1

/etc/resolv.conf


search mydomain.example
nameserver 192.168.0.1
nameserver 4.2.2.2

how come nameserver has 192.198.0.1 and at the same time same IP for gateway?

???

I really would appreciate any help. I need to figure this out. What is wrong with my set up?

Thanks
007casper
July 4th, 2009, 08:09 AM
I hear the grasshoppers chirping.

anybody ~ any ideas why I cant get a connection :-(
007casper
July 4th, 2009, 10:53 AM
lspci
*snip*
02:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet Controller
03:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet Controller
*snip*
07:00.0 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit Ethernet Controller (Copper) (rev 01)
07:00.1 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit Ethernet Controller (Copper) (rev 01)



[ 5.510383] 0000:07:00.0: eth0: (PCI Express:2.5GB/s:Width x4) 00:1f:c6:d5:b9:90
[ 5.510386] 0000:07:00.0: eth0: Intel(R) PRO/1000 Network Connection
[ 5.510464] 0000:07:00.0: eth0: MAC: 4, PHY: 5, PBA No: ffffff-0ff

[ 5.625794] 0000:07:00.1: eth1: (PCI Express:2.5GB/s:Width x4) 00:1f:c6:d5:b9:91
[ 5.625796] 0000:07:00.1: eth1: Intel(R) PRO/1000 Network Connection
[ 5.625874] 0000:07:00.1: eth1: MAC: 4, PHY: 5, PBA No: ffffff-0ff

[ 5.788957] 0000:03:00.0: eth2: (PCI Express:2.5GB/s:Width x1) 00:1f:c6:d6:04:4a
[ 5.788959] 0000:03:00.0: eth2: Intel(R) PRO/1000 Network Connection
[ 5.789042] 0000:03:00.0: eth2: MAC: 2, PHY: 2, PBA No: ffffff-0ff

[ 5.944211] 0000:02:00.0: eth3: (PCI Express:2.5GB/s:Width x1) 00:1f:c6:d6:03:76
[ 5.944213] 0000:02:00.0: eth3: Intel(R) PRO/1000 Network Connection
[ 5.944297] 0000:02:00.0: eth3: MAC: 2, PHY: 2, PBA No: ffffff-0ff

[ 29.513951] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 36.165329] type=1503 audit(1246690801.416:12): operation="inode_permission" requested_mask="r::" denied_mask="r::" fsuid=107 name="/var/lib/named/etc/bind/named.conf" pid=2866 profile="/usr/sbin/named"
[ 41.005799] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 41.005801] Bluetooth: BNEP filters: protocol multicast
[ 41.012315] Bridge firewalling registered
[ 41.781310] ppdev: user-space parallel port driver
[ 42.083376] warning: `proftpd' uses 32-bit capabilities (legacy support in use)
[ 45.760964] e1000e 0000:02:00.0: irq 2293 for MSI/MSI-X
[ 45.820111] e1000e 0000:02:00.0: irq 2293 for MSI/MSI-X
[ 45.822431] ADDRCONF(NETDEV_UP): eth3: link is not ready
[ 45.840937] e1000e 0000:03:00.0: irq 2294 for MSI/MSI-X
[ 45.900708] e1000e 0000:03:00.0: irq 2294 for MSI/MSI-X
[ 45.902622] ADDRCONF(NETDEV_UP): eth2: link is not ready
[ 45.952547] e1000e 0000:07:00.1: irq 2295 for MSI/MSI-X
[ 46.011970] e1000e 0000:07:00.1: irq 2295 for MSI/MSI-X
[ 46.014531] ADDRCONF(NETDEV_UP): eth1: link is not ready
[ 48.682503] 0000:02:00.0: eth3: Link is Up 100 Mbps Full Duplex, Flow Control: None
[ 48.682507] 0000:02:00.0: eth3: 10/100 speed: disabling TSO
[ 48.683641] ADDRCONF(NETDEV_CHANGE): eth3: link becomes ready
[ 58.881881] eth3: no IPv6 routers present
[ 461.990134] 0000:02:00.0: eth3: Link is Down
[ 466.756064] 0000:07:00.1: eth1: Link is Up 100 Mbps Full Duplex, Flow Control: None
[ 466.756068] 0000:07:00.1: eth1: 10/100 speed: disabling TSO
[ 466.757128] ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[ 477.190008] eth1: no IPv6 routers present
[ 1016.848752] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 1188.385944] keyboard.c: can't emulate rawmode for keycode 240
[ 1188.630012] keyboard.c: can't emulate rawmode for keycode 240
[ 1188.881987] keyboard.c: can't emulate rawmode for keycode 240
[ 1454.604391] device eth0 entered promiscuous mode
[ 1454.712519] device eth0 left promiscuous mode
[ 1508.370646] device eth0 entered promiscuous mode
[ 1547.210637] device eth0 left promiscuous mode
[ 1766.746287] e1000e 0000:07:00.0: irq 2296 for MSI/MSI-X
[ 1766.801342] e1000e 0000:07:00.0: irq 2296 for MSI/MSI-X
[ 1766.804006] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 2057.554434] e1000e 0000:07:00.1: irq 2295 for MSI/MSI-X
[ 2057.611344] e1000e 0000:07:00.1: irq 2295 for MSI/MSI-X
[ 2057.614054] ADDRCONF(NETDEV_UP): eth1: link is not ready
[ 2059.966065] 0000:07:00.1: eth1: Link is Up 100 Mbps Full Duplex, Flow Control: None
[ 2059.966068] 0000:07:00.1: eth1: 10/100 speed: disabling TSO
[ 2059.967157] ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[ 2070.390010] eth1: no IPv6 routers present



sudo tcpdump -vvxXns0 -i eth0
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes


netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1
0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 eth0
Iowan
July 5th, 2009, 12:35 AM
how come nameserver has 192.198.0.1 and at the same time same IP for gateway? My router is my DHCP server, DNS server, and gateway.
The machine actually has four ethernet ports?
I suppose you noticed that eth1 is not getting the address you assigned?
Short term, you might try using ifconfig to manually assign an address to eth1. (You'll need to consult man ifconfig for details).
007casper
July 5th, 2009, 04:20 AM
My router is my DHCP server, DNS server, and gateway.
same IP like the example on post number 3 :shock:

Yes, I have 4 ports. Gig LAN connection. I thought about hooking up the connection straight to the server without a router, by assigning the static IP through /etc/network/interfaces.

It just wouldnt work. Maybe server ports like routers, and not straight connections. Is that possible? I just didnt want to deal with cycling routers every now and then.

I looked at man ifconfig, and many other threads in the forum. I just dont understand why it stopped working. It used to work with all the bells and whistles when it was in a network. Now it is just moody. eth1 just wont budge. It hangs, or doesnt work at all.