I’m having trouble with KDE setting up my wired (eth0) connection. Basically when I tell it to connect using the eth0 interface, it will get its network address, then after a few seconds, it will disconnect itself, then try to connect again, then disconnect again. The process just repeats itself.
At first I wanted my eth0 to connect to a static IP but that didn’t work. Tried making it connect through a DHCP-assigned IP address as well but to no avail.
What’s weird though is that using dhclient to assign an address to eth0 works fine and it gives me a stable network connection. The problem with that workaround is that the KDE Network Manager does not recognize the connection, and as such it can’t handle the connection either.
I dual boot Opensuse 12.3 together with Windows 8 and I can confirm that ethernet connections work fine in Windows. So I can safely cross out the possibility that this is a hardware problem regarding the NIC.
My Ethernet NIC, according to lspci is Intel Corporation 82579V Gigabit. I used Kubuntu in the past and the ethernet worked fine, and I’m scratching my head trying to figure out why wouldn’t it work on Opensuse.
Any suggestions and help will be very much appreciated. Thanks in advance.
Hi, I’m having trouble with KDE setting up my wired (eth0) connection. Basically when I tell it to connect using the eth0 interface, it will get its network address, then after a few seconds, it will disconnect itself, then try to connect again, then disconnect again. The process just repeats itself. At first I wanted my eth0 to connect to a static IP but that didn’t work. Tried making it connect through a DHCP-assigned IP address as well but to no avail. What’s weird though is that using dhclient to assign an address to eth0 works fine and it gives me a stable network connection. The problem with that workaround is that the KDE Network Manager does not recognize the connection, and as such it can’t handle the connection either. I dual boot Opensuse 12.3 together with Windows 8 and I can confirm that ethernet connections work fine in Windows. So I can safely cross out the possibility that this is a hardware problem regarding the NIC. My Ethernet NIC, according to lspci is Intel Corporation 82579V Gigabit. I used Kubuntu in the past and the ethernet worked fine, and I’m scratching my head trying to figure out why wouldn’t it work on Opensuse. Any suggestions and help will be very much appreciated. Thanks in advance.
Do you see the network card displayed here YaST==>Network Settings ?
Immediately after experiencing your anomaly, see if something has been logged in your syslog, the following will display the last 50 entries
tail -n 50 /var/log/messages
Try changing your MAC address. This is easy to do using NM, open the Connection Properties and enter a new value in the “Clone” field (or use the random button to generate a random MAC address)
If you have access to your DHCP Server’s logs, see if there is something informative in them.
I think I fixed the problem. All I did was clear the MAC address value in the “Clone” field, and now the connection doesn’t die immediately after connecting.
I’m still not sure how that broke the connection though (I’m not really that great at networking).
Here’s my tail output though (before I fixed the problem, right after the connection disconnected itself):
2013-07-31T09:36:09.142563+08:00 deathbook kernel: 2162.651456] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx
2013-07-31T09:36:09.142577+08:00 deathbook kernel: 2162.651461] e1000e 0000:00:19.0 eth0: 10/100 speed: disabling TSO
2013-07-31T09:36:09.142581+08:00 deathbook kernel: 2162.651494] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
2013-07-31T09:36:10.523861+08:00 deathbook avahi-daemon[968]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::2ed4:44ff:feba:c7d1.
2013-07-31T09:36:10.524426+08:00 deathbook avahi-daemon[968]: New relevant interface eth0.IPv6 for mDNS.
2013-07-31T09:36:10.524731+08:00 deathbook avahi-daemon[968]: Registering new address record for fe80::2ed4:44ff:feba:c7d1 on eth0.*.
2013-07-31T09:36:14.241138+08:00 deathbook avahi-daemon[968]: Interface eth0.IPv6 no longer relevant for mDNS.
2013-07-31T09:36:14.241298+08:00 deathbook avahi-daemon[968]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::2ed4:44ff:feba:c7d1.
2013-07-31T09:36:14.241580+08:00 deathbook avahi-daemon[968]: Withdrawing address record for fe80::2ed4:44ff:feba:c7d1 on eth0.
2013-07-31T09:36:14.397583+08:00 deathbook kernel: 2167.909825] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
2013-07-31T09:36:14.498562+08:00 deathbook kernel: 2168.010016] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
2013-07-31T09:36:14.498576+08:00 deathbook kernel: 2168.010130] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
2013-07-31T09:36:14.503451+08:00 deathbook avahi-daemon[968]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.123.
2013-07-31T09:36:14.503922+08:00 deathbook avahi-daemon[968]: New relevant interface eth0.IPv4 for mDNS.
2013-07-31T09:36:14.504330+08:00 deathbook avahi-daemon[968]: Registering new address record for 192.168.1.123 on eth0.IPv4.
2013-07-31T09:36:15.559214+08:00 deathbook dbus-daemon[999]: dbus[999]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
2013-07-31T09:36:15.560142+08:00 deathbook dbus[999]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
2013-07-31T09:36:15.567573+08:00 deathbook dbus-daemon[999]: dbus[999]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
2013-07-31T09:36:15.568181+08:00 deathbook dbus[999]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
2013-07-31T09:36:15.638602+08:00 deathbook kernel: 2169.150586] IPv4: martian source 192.168.1.123 from 64.4.23.145, on dev wlan0
2013-07-31T09:36:15.638627+08:00 deathbook kernel: 2169.150594] ll header: 00000000: 40 25 c2 ef 55 d4 50 46 5d 6c 7e 78 08 00 @%..U.PF]l~x..
2013-07-31T09:36:15.752603+08:00 deathbook kernel: 2169.264778] IPv4: martian source 192.168.1.123 from 208.67.222.222, on dev wlan0
2013-07-31T09:36:15.752626+08:00 deathbook kernel: 2169.264783] ll header: 00000000: 40 25 c2 ef 55 d4 50 46 5d 6c 7e 78 08 00 @%..U.PF]l~x..
2013-07-31T09:36:15.947596+08:00 deathbook kernel: 2169.460438] IPv4: martian source 192.168.1.123 from 157.56.108.82, on dev wlan0
2013-07-31T09:36:15.947618+08:00 deathbook kernel: 2169.460443] ll header: 00000000: 40 25 c2 ef 55 d4 50 46 5d 6c 7e 78 08 00 @%..U.PF]l~x..
2013-07-31T09:36:16.093616+08:00 deathbook kernel: 2169.606493] IPv4: martian source 192.168.1.123 from 64.4.23.145, on dev wlan0
2013-07-31T09:36:16.093646+08:00 deathbook kernel: 2169.606498] ll header: 00000000: 40 25 c2 ef 55 d4 50 46 5d 6c 7e 78 08 00 @%..U.PF]l~x..
2013-07-31T09:36:17.001638+08:00 deathbook kernel: 2170.514329] IPv4: martian source 192.168.1.123 from 64.4.23.145, on dev wlan0
2013-07-31T09:36:17.001664+08:00 deathbook kernel: 2170.514334] ll header: 00000000: 40 25 c2 ef 55 d4 50 46 5d 6c 7e 78 08 00 @%..U.PF]l~x..
2013-07-31T09:36:17.433583+08:00 deathbook kernel: 2170.946471] e1000e 0000:00:19.0: setting latency timer to 64
2013-07-31T09:36:17.433608+08:00 deathbook kernel: 2170.946503] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
2013-07-31T09:36:18.556566+08:00 deathbook avahi-daemon[968]: Withdrawing address record for 192.168.1.123 on eth0.
2013-07-31T09:36:18.556587+08:00 deathbook avahi-daemon[968]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.123.
2013-07-31T09:36:18.557149+08:00 deathbook avahi-daemon[968]: Interface eth0.IPv4 no longer relevant for mDNS.
2013-07-31T09:36:19.450602+08:00 deathbook kernel: 2172.965201] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx
2013-07-31T09:36:19.450654+08:00 deathbook kernel: 2172.965208] e1000e 0000:00:19.0 eth0: 10/100 speed: disabling TSO
2013-07-31T09:36:19.450659+08:00 deathbook kernel: 2172.965263] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
2013-07-31T09:36:20.943775+08:00 deathbook avahi-daemon[968]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::2ed4:44ff:feba:c7d1.
2013-07-31T09:36:20.944146+08:00 deathbook avahi-daemon[968]: New relevant interface eth0.IPv6 for mDNS.
2013-07-31T09:36:20.944379+08:00 deathbook avahi-daemon[968]: Registering new address record for fe80::2ed4:44ff:feba:c7d1 on eth0.*.
2013-07-31T09:36:26.199249+08:00 deathbook kernel: 2179.717057] IPv4: martian source 255.255.255.255 from 192.168.1.124, on dev eth0
2013-07-31T09:36:26.199273+08:00 deathbook kernel: 2179.717070] ll header: 00000000: ff ff ff ff ff ff 00 16 d3 26 c7 a8 08 00 .........&....
2013-07-31T09:36:26.199890+08:00 deathbook kernel: 2179.717685] IPv4: martian source 192.168.1.255 from 192.168.1.124, on dev eth0
2013-07-31T09:36:26.199903+08:00 deathbook kernel: 2179.717709] ll header: 00000000: ff ff ff ff ff ff 00 16 d3 26 c7 a8 08 00 .........&....
2013-07-31T09:36:28.021222+08:00 deathbook kernel: 2181.539869] IPv4: martian source 255.255.255.255 from 192.168.1.123, on dev eth0
2013-07-31T09:36:28.021243+08:00 deathbook kernel: 2181.539893] ll header: 00000000: ff ff ff ff ff ff 40 25 c2 ef 55 d4 08 00 ......@%..U...
2013-07-31T09:36:28.021754+08:00 deathbook kernel: 2181.540397] IPv4: martian source 192.168.1.255 from 192.168.1.123, on dev eth0
2013-07-31T09:36:28.021768+08:00 deathbook kernel: 2181.540418] ll header: 00000000: ff ff ff ff ff ff 40 25 c2 ef 55 d4 08 00 ......@%..U...
Looks to me that for whatever reason the same IP address was assigned to both your wireless and wired adapters… a definite problem unless you somehow had bound both NICs together.