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roki942
Apprentice
Joined: 18 Apr 2005
Posts: 285
Location: Seattle
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 Posted: Mon Sep 28, 2015 6:11 pm Post subject: [SOLVED]Desktop inet address changed while unattended |
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This is the 2nd time it's happend (in the past month) and as as it's someting I don't understand it has me a bit freaked.
Yesterday my deskktop was 192.168.1.100 and my netbook was 192.168.1.101.
Was sshed into the netbook from the desktop and runing a distccd update.
This morning the xterm with the ssh session was not responding (couldn't even type into it)
My netbook is now 192.168.1.103
Desktop is
| Code: | me@Desktop ~ $ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 169.254.45.145 netmask 255.255.0.0 broadcast 169.254.255.255
ether 00:1c:c0:1f:23:b2 txqueuelen 1000 (Ethernet)
RX packets 5771257 bytes 8257453099 (7.6 GiB)
RX errors 0 dropped 102 overruns 0 frame 0
TX packets 3054705 bytes 292202567 (278.6 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 20 memory 0xe1480000-e14a0000
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 0 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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and my router is showing my desktop connected as 192.168.1.100
The last dmesg entry is | Code: |
[100876.032397] Chrome_ChildThr[23250]: segfault at 0 ip 000000000040970f sp 00007feef4ffe510 error 6 in plugin-container[400000+5a000]
[101728.653336] Chrome_ChildThr[23658]: segfault at 0 ip 000000000040970f sp 00007f22f1cfe510 error 6 in plugin-container[400000+5a000]
[105853.158564] nf_conntrack: automatic helper assignment is deprecated and it will be removed soon. Use the iptables CT target to attach helpers instead.
[132616.743528] e1000e: eth0 NIC Link is Down
[132619.170942] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx |
My rc.log is empty with a last modified time of 3:10:01 am
rc.log-20150927,gz has a last entry of | Code: | | rc default logging stopped at Thu Sep 24 10:15:53 2015 |
As this is all a bit over my head I'd really appeciate some help in figuring it out.
Thanks
Last edited by roki942 on Tue Sep 29, 2015 11:06 pm; edited 1 time in total |
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kikko
Apprentice
Joined: 29 Apr 2014
Posts: 276
Location: Milan, IT
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| Posted: Mon Sep 28, 2015 8:00 pm Post subject: |
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Hi roki942
surely that's weird.... Desktop address is in APIPA range, is that configured in your "/etc/conf.d/net"?
Anyway do you have an idea of what time the disconnection happened (may I suggest you to run a "dmesg -T", to display times in a human readable format)
It maybe related to DHCP leases, do you use it in your network?
Last but not least, does syslog logs says something?
I hope these suggestions could help you in your troubleshooting
Regards |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54808
Location: 56N 3W
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| Posted: Mon Sep 28, 2015 9:34 pm Post subject: |
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kikko,
| Code: | $ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 169.254.45.145 netmask 255.255.0.0 broadcast 169.254.255.255 |
it looks like the linx wend down and stayed down long enough for dhcpcd to time out and help itself to a link local address.
dmesg may show the link gowing down.
That you get new IP addresses suggests that your router has lost track of address assignments.
Did it power cycle?
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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roki942
Apprentice
Joined: 18 Apr 2005
Posts: 285
Location: Seattle
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| Posted: Tue Sep 29, 2015 5:02 am Post subject: |
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So the link did go down | Code: | [Mon Sep 28 09:48:51 2015] e1000e: eth0 NIC Link is Down
[Mon Sep 28 09:48:54 2015] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx
[Mon Sep 28 09:48:54 2015] e1000e 0000:00:19.0 eth0: 10/100 speed: disabling TSO |
I left /etc/conf.d/net as it was so nothing there.
I don't know if it powered off or not.
What I still find confusing is why the router's DHCP client table still showed the ip as being 192.168.1.100.
Guess I don't understand how it would lose track.
Thanks |
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kikko
Apprentice
Joined: 29 Apr 2014
Posts: 276
Location: Milan, IT
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| Posted: Tue Sep 29, 2015 7:46 am Post subject: |
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Hi roki942
Maybe that is the address you router has leased for the client, but if dhcp daemon in your client client has timed out that address hasn't been applied
Regards |
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roki942
Apprentice
Joined: 18 Apr 2005
Posts: 285
Location: Seattle
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| Posted: Tue Sep 29, 2015 11:06 pm Post subject: |
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Thanks kikko & Neddy!
I've added this to my list of things to learn/explore  |
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