[arch-general] NetworkManager warn logs, Is it something to be concerned?

piruthiviraj natarajan piruthiviraj at gmail.com
Wed Jul 22 02:37:37 UTC 2015


I get these logs in my journal and I am not sure if something is wrong.
My wifi works fine though.
I have intel card
 02:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N
2200 [8086:0891] (rev c4)
my journalctl -r log is
[code]Jul 21 22:12:39 archlinux NetworkManager[259]: <warn>  (wlp2s0):
Lowering IPv6 MTU (1500) to match device MTU (0)
Jul 21 22:12:39 archlinux NetworkManager[259]: <warn>  (wlp2s0): IPv6 MTU
(0) smaller than 1280, adjusting
Jul 21 22:12:39 archlinux NetworkManager[259]: <warn>  (wlp2s0): Raising
device MTU (0) to match IPv6 MTU (1280)
Jul 21 22:12:55 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:13:21 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:14:13 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:14:50 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (0)
Jul 21 22:14:50 archlinux NetworkManager[259]: <warn>  (wlp2s0): IPv6 MTU
(0) smaller than 1280, adjusting
Jul 21 22:14:50 archlinux NetworkManager[259]: <warn>  (wlp2s0): Raising
device MTU (0) to match IPv6 MTU (1280)
Jul 21 22:15:06 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:15:41 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:16:02 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:16:43 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (0)
Jul 21 22:16:43 archlinux NetworkManager[259]: <warn>  (wlp2s0): IPv6 MTU
(0) smaller than 1280, adjusting
Jul 21 22:16:43 archlinux NetworkManager[259]: <warn>  (wlp2s0): Raising
device MTU (0) to match IPv6 MTU (1280)
Jul 21 22:17:33 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:17:53 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:18:26 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:18:46 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (0)
Jul 21 22:18:46 archlinux NetworkManager[259]: <warn>  (wlp2s0): IPv6 MTU
(0) smaller than 1280, adjusting
Jul 21 22:18:46 archlinux NetworkManager[259]: <warn>  (wlp2s0): Raising
device MTU (0) to match IPv6 MTU (1280)
Jul 21 22:19:36 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:20:14 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:20:52 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (0)
Jul 21 22:20:52 archlinux NetworkManager[259]: <warn>  (wlp2s0): IPv6 MTU
(0) smaller than 1280, adjusting
Jul 21 22:20:52 archlinux NetworkManager[259]: <warn>  (wlp2s0): Raising
device MTU (0) to match IPv6 MTU (1280)
Jul 21 22:21:30 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:22:15 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:22:59 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (0)
Jul 21 22:22:59 archlinux NetworkManager[259]: <warn>  (wlp2s0): IPv6 MTU
(0) smaller than 1280, adjusting
Jul 21 22:22:59 archlinux NetworkManager[259]: <warn>  (wlp2s0): Raising
device MTU (0) to match IPv6 MTU (1280)
Jul 21 22:23:27 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:24:23 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:25:19 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (0)
Jul 21 22:25:19 archlinux NetworkManager[259]: <warn>  (wlp2s0): IPv6 MTU
(0) smaller than 1280, adjusting
Jul 21 22:25:19 archlinux NetworkManager[259]: <warn>  (wlp2s0): Raising
device MTU (0) to match IPv6 MTU (1280)
Jul 21 22:25:47 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:26:45 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (0)
Jul 21 22:26:45 archlinux NetworkManager[259]: <warn>  (wlp2s0): IPv6 MTU
(0) smaller than 1280, adjusting
Jul 21 22:26:45 archlinux NetworkManager[259]: <warn>  (wlp2s0): Raising
device MTU (0) to match IPv6 MTU (1280)
Jul 21 22:27:23 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:27:44 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:28:07 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
Jul 21 22:28:52 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (0)
Jul 21 22:28:52 archlinux NetworkManager[259]: <warn>  (wlp2s0): IPv6 MTU
(0) smaller than 1280, adjusting
Jul 21 22:28:52 archlinux NetworkManager[259]: <warn>  (wlp2s0): Raising
device MTU (0) to match IPv6 MTU (1280)
Jul 21 22:29:10 archlinux NetworkManager[259]: <warn>  (wlp2s0): Lowering
IPv6 MTU (1500) to match device MTU (1280)
[/code]


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