OpenSUSE killing my cable modem at startup

English Network/Internet
1

Hello, first of all sorry for my linux’s skills, they are very very basics.
Here’s the thing, i installed opensuse 12.2 64bit wired to a [RIGHT]Cisco EPC3925 EuroDocsis cablemodem[/RIGHT]

As soon as it start booting it will literally kill my cable modem. For example, my mobile phone will disconnect to the wireless and won’t connect again.

The only way to bring back the cablemodem to life is by rebooting it.

Before rebooting the cablemodem:

linux:/home/guido # ifconfig
eth0 Link encap:Ethernet HWaddr D4:3D:7E:92:93:05
inet addr:192.168.1.11 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:6196 (6.0 Kb)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:58 errors:0 dropped:0 overruns:0 frame:0
TX packets:58 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3504 (3.4 Kb) TX bytes:3504 (3.4 Kb)

linux:/home/guido # ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
From 192.168.1.11 icmp_seq=1 Destination Host Unreachable
From 192.168.1.11 icmp_seq=2 Destination Host Unreachable
From 192.168.1.11 icmp_seq=3 Destination Host Unreachable
From 192.168.1.11 icmp_seq=4 Destination Host Unreachable
^C
— 192.168.1.1 ping statistics —
7 packets transmitted, 0 received, +4 errors, 100% packet loss, time 6000ms
pipe 4
linux:/home/guido # cat /etc/resolv.conf

Generated by dhcpcd for interface eth0

nameserver 213.46.172.36
nameserver 213.46.172.37

After rebooting the cablemodem:

linux:/home/guido # ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=4.03 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.670 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.573 ms

Please note this is only happening me with opensuse, i have windows installed in the same machine and i don’t have the problem.
I’ve also tried by configuring the ip manually, and i’m facing the same issue.

thanks!

2

Please use code tags when providing output of different commands. As far as I can see, and others will hopefully be able to tell you more there are errors on the connection (in bold) which the cable-modem when negotiating with the network card is complaining about. Maybe that is killing the modem?

linux:/home/guido # ifconfig
eth0      Link encap:Ethernet  HWaddr D4:3D:7E:92:93:05  
          inet addr:192.168.1.11  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          **TX packets:32 errors**:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:6196 (6.0 Kb)


lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          **RX packets:58 errors**:0 dropped:0 overruns:0 frame:0
          **TX packets:58 errors**:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:3504 (3.4 Kb)  TX bytes:3504 (3.4 Kb)

maybe providing the /var/log/NetworkManager will give us more details. Try to check if you spot any errors on /var/log/messages.

3

I would like to thank you for your reply.
I’ve checked messages log and didn’t find any errors…

HEre is the networkmanager log:

Feb 24 19:28:14 linuxNetworkManager[7685]: <info> NetworkManager (version 0.9.4.0)is starting...Feb 24 19:28:14 linuxNetworkManager[7685]: <info> Read config file/etc/NetworkManager/NetworkManager.conf
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> VPN: loadedorg.freedesktop.NetworkManager.vpnc
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> VPN: loadedorg.freedesktop.NetworkManager.openvpn
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> VPN: loadedorg.freedesktop.NetworkManager.pptp
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> Loaded plugin ifcfg-suse: (C) 2008Novell, Inc.  To report bugs please use the NetworkManager mailinglist.
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> Loaded plugin keyfile: (c) 2007 -2010 Red Hat, Inc.  To report bugs please use the NetworkManagermailing list.
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> trying to start the modemmanager...
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> monitoring kernel firmwaredirectory '/lib/firmware'.
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> WiFi enabled by radio killswitch;enabled by state file
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> WWAN enabled by radio killswitch;enabled by state file
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> WiMAX enabled by radio killswitch;enabled by state file
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> Networking is enabled by statefile
Feb 24 19:28:14 linuxNetworkManager[7685]: <warn> failed to allocate link cache:(-10) Operation not supported
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> (eth0): carrier is OFF
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> (eth0): new Ethernet device(driver: 'r8169' ifindex: 2)
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> (eth0): exported as/org/freedesktop/NetworkManager/Devices/0
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> (eth0): now managed
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> (eth0): device state change:unmanaged -> unavailable (reason 'managed') [10 20 2]
Feb 24 19:28:14 linuxNetworkManager[7685]: <info> (eth0): bringing up device.
Feb 24 19:28:15 linuxNetworkManager[7685]: <info> (eth0): preparing device.
Feb 24 19:28:15 linuxNetworkManager[7685]: <info> (eth0): deactivating device(reason 'managed') [2]
Feb 24 19:28:15 linuxNetworkManager[7685]: <info> Added default wired connection'Wired connection 1' for/sys/devices/pci0000:00/0000:00:15.0/0000:05:00.0/net/eth0
Feb 24 19:28:15 linuxNetworkManager[7685]: <warn> bluez error getting defaultadapter: The name org.bluez was not provided by any .service files
Feb 24 19:28:15 linuxNetworkManager[7685]: <info> modem-manager is now available
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> (eth0): carrier now ON (devicestate 20)
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> (eth0): device state change:unavailable -> disconnected (reason 'carrier-changed') [20 30 40]
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Auto-activating connection 'Wiredconnection 1'.
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) startingconnection 'Wired connection 1'
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> (eth0): device state change:disconnected -> prepare (reason 'none') [30 40 0]
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 1 of 5(Device Prepare) scheduled...
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 1 of 5(Device Prepare) started...
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 2 of 5(Device Configure) scheduled...
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 1 of 5(Device Prepare) complete.
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 2 of 5(Device Configure) starting...
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> (eth0): device state change:prepare -> config (reason 'none') [40 50 0]
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 2 of 5(Device Configure) successful.
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 3 of 5 (IPConfigure Start) scheduled.
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 2 of 5(Device Configure) complete.
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 3 of 5 (IPConfigure Start) started...
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> (eth0): device state change:config -> ip-config (reason 'none') [50 70 0]
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Beginning DHCPv4transaction (timeout in 45 seconds)
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> dhclient started with pid 7742
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Beginning IP6addrconf.
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 3 of 5 (IPConfigure Start) complete.
Feb 24 19:28:17 linuxNetworkManager[7685]: <info> (eth0): DHCPv4 state changed nbi-> preinit
Feb 24 19:28:23 linuxNetworkManager[7685]: <info> (eth0): DHCPv4 state changedpreinit -> bound
Feb 24 19:28:23 linuxNetworkManager[7685]: <info>   address 192.168.1.11
Feb 24 19:28:23 linuxNetworkManager[7685]: <info>   prefix 24 (255.255.255.0)
Feb 24 19:28:23 linuxNetworkManager[7685]: <info>   gateway 192.168.1.1
Feb 24 19:28:23 linuxNetworkManager[7685]: <info>   nameserver '213.46.172.36'
Feb 24 19:28:23 linuxNetworkManager[7685]: <info>   nameserver '213.46.172.37'
Feb 24 19:28:23 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 5 of 5(IPv4 Configure Commit) scheduled...
Feb 24 19:28:23 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 5 of 5(IPv4 Commit) started...
Feb 24 19:28:24 linuxNetworkManager[7685]: <info> Clearing nscd hosts cache.
Feb 24 19:28:24 linuxNetworkManager[7685]: <info> (eth0): device state change:ip-config -> activated (reason 'none') [70 100 0]
Feb 24 19:28:24 linuxNetworkManager[7685]: <info> Policy set 'Wired connection 1'(eth0) as default for IPv4 routing and DNS.
Feb 24 19:28:24 linuxNetworkManager[7685]: <info> Activation (eth0) successful,device activated.
Feb 24 19:28:24 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 5 of 5(IPv4 Commit) complete.
Feb 24 19:28:25 linuxNetworkManager[7685]: ATTENTION: You have modified /etc/resolv.conf. Leaving it untouched...
Feb 24 19:28:25 linuxNetworkManager[7685]: You can find my version in/etc/resolv.conf.netconfig ...
Feb 24 19:28:25 linuxnm-dispatcher.action: Script '/etc/NetworkManager/dispatcher.d/nfs'exited with error status 2.
Feb 24 19:28:37 linuxNetworkManager[7685]: <info> (eth0): IP6 addrconf timed out orfailed.
Feb 24 19:28:37 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 4 of 5(IPv6 Configure Timeout) scheduled...
Feb 24 19:28:37 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 4 of 5(IPv6 Configure Timeout) started...
Feb 24 19:28:37 linuxNetworkManager[7685]: <info> Activation (eth0) Stage 4 of 5(IPv6 Configure Timeout) complete.
Feb 24 19:28:38 linuxNetworkManager[7685]: <info> caught signal 15, shutting downnormally.
Feb 24 19:28:38 linuxNetworkManager[7685]: <warn> quit request received,terminating...
Feb 24 19:28:38 linuxNetworkManager[7685]: <info> Clearing nscd hosts cache.
Feb 24 19:28:38 linuxNetworkManager[7685]: <info> exiting (success)

But, i found something interesting. If i bring down the eth0 interface, will also kill my cable modem!

This is the output of the messages in the time i did ifconfig eth0 down

Feb 25 00:26:08 linuxavahi-daemon[575]: Interface eth0.IPv4 no longer relevant for mDNS.Feb 25 00:26:08 linuxavahi-daemon[575]: Leaving mDNS multicast group on interfaceeth0.IPv4 with address 192.168.1.11.
Feb 25 00:26:08 linuxavahi-daemon[575]: Withdrawing address record for 192.168.1.11 oneth0.

Once again, thanks!

4

i can see something about vpn in the log. Are/were you using a vpn connection? Did you modify manually a file called /etc/resolv.conf? that file is usually modified when a vpn connection is used and the name of the network to which you bound to and the nameserver for DNS is added to the file. IF for any reason the connection is not correctly disconnected that will leave this file /etc/resolv.conf with some info which prevents you from connecting to internet. I have these type of problems in the past so that’s why I asked. I might be able to give more details if this scenario applies. Can you check if there multiple files like /etc/resolv*. if yes provide what it contains(modify the ip addresses just for security reasons before posting) and provide output of /etc/resolv.conf.
do you have ipv6 enabled in Network Settings?