[gentoo-user] IPv6 and sysctl

[gentoo-user] IPv6 and sysctl

[Klaus Ethgen]

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Hi,

... but I does have an ipv6 question too.

Currently I have the following in /etc/sysctl.conf:
   net.ipv6.conf.default.use_tempaddr=2
   net.ipv6.conf.lo.use_tempaddr=2
   net.ipv6.conf.eth0.use_tempaddr=2
   net.ipv6.conf.wlan0.use_tempaddr=2

all doesn't have any effect, see [0] and [1]. So, no, that is not
related to the problem.

For some reasons I have ipv6 and tg3 (my eth0) as module.

Unfortunately, the setting does not to be set. My guess is, that sysctl
runs before loading of the network modules.

Restarting sysctl service and network does work and gives me privacy
extension. But not the standard boot.

Any idea how to fix that? There must be a trustable way to set privacy
extension.

Regards
   Klaus

[0] https://bugzilla.kernel.org/show_bug.cgi?id=11655
[1] https://bugzilla.kernel.org/show_bug.cgi?id=9224
- -- 
Klaus Ethgen                                       http://www.ethgen.ch/
pub  4096R/4E20AF1C 2011-05-16            Klaus Ethgen <Klaus@Ethgen.ch>
Fingerprint: 85D4 CA42 952C 949B 1753  62B3 79D0 B06F 4E20 AF1C
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Re: [gentoo-user] IPv6 and sysctl

[Floyd Anderson]

On Sat, 28 Apr 2018 07:57:17 +0100
Klaus Ethgen <Klaus+gentoo@Ethgen.de> wrote:
>Hi,
>
>... but I does have an ipv6 question too.
>
>Currently I have the following in /etc/sysctl.conf:
>   net.ipv6.conf.default.use_tempaddr=2
>   net.ipv6.conf.lo.use_tempaddr=2
>   net.ipv6.conf.eth0.use_tempaddr=2
>   net.ipv6.conf.wlan0.use_tempaddr=2
>
>all doesn't have any effect, see [0] and [1]. So, no, that is not
>related to the problem.
>
>For some reasons I have ipv6 and tg3 (my eth0) as module.
>
>Unfortunately, the setting does not to be set. My guess is, that sysctl
>runs before loading of the network modules.
>
>Restarting sysctl service and network does work and gives me privacy
>extension. But not the standard boot.
>
>Any idea how to fix that? There must be a trustable way to set privacy
>extension.

You can change to builtin by ‘CONFIG_IPV6=y’ – some basic settings can 
be made in "/etc/modprobe.d/ipv6.conf" if you want to keep it as module, 
see kernel doc "Documentation/networking/ipv6.txt".


-- 
Regards,
floyd