Re: [GIT] Networking

From: Denys Vlasenko
Date: Wed Apr 29 2015 - 13:54:17 EST

On Wed, Apr 29, 2015 at 5:17 PM, D.S. Ljungmark <ljungmark@xxxxxxxx> wrote:
> On 29/04/15 16:51, Denys Vlasenko wrote:
>> # for f in /proc/sys/net/ipv6/conf/*/hop_limit; do echo -n $f:; cat $f; done
>> /proc/sys/net/ipv6/conf/all/hop_limit:64
>> /proc/sys/net/ipv6/conf/default/hop_limit:64
>> /proc/sys/net/ipv6/conf/enp0s25/hop_limit:1 <=== THIS
>> /proc/sys/net/ipv6/conf/lo/hop_limit:64
>> /proc/sys/net/ipv6/conf/wlp3s0/hop_limit:64
>> As you see, the interface which received RAs still lowered
>> its hop_limit to 1. I take it means that the bug is still present
>> (right? I'm not a network guy...).
> It might not be present in the _kernel_. Do you run NetworkManager on
> your system? If so, see below.

Yes. "killall -STOP NetworkManager" and now I see that bug is fixed.

Sorry for the false alarm.

(If anyone would want to reproduce this, NB:
be sure to also enable accept_ra* sysctls,
otherwise kernel will ignore RAs and bug wouldn't be reproduced
on previous kernels too).
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