Bug#643805: linux-image-3.0.0-1-686-pae: ipv4/conf/all/* entries do not work in /proc/sys/net/

[Uwe Kleine-König <u.kleine-koenig@pengutronix.de>]

Hello,

On Thu, Sep 29, 2011 at 10:24:36PM +0200, Alexandre Chapellon wrote:
> Package: linux-2.6
> Version: 3.0.0-3
> Severity: normal
> 
> Dear Maintainer,
> 
> I have a vpn gateway that periodically sends icmp redirects to the hosts of my
> network (when renegociating  tunnels), I configured hosts not to accepts
> reidrects by uncommenting the default directive found in sysctl.conf:
> 
> net.ipv4.conf.all.accept_redirects = 0
> 
> after reboot here is the config i get in /proc/sys:
> cat /proc/sys/net/ipv4/conf/*/accept_redirects
> 0
> 1
> 1
> 1
> 1
there is a misconception. IMHO a better name for "all" would be
"global". See
http://thread.gmane.org/gmane.linux.network/182279/focus=186917 for a
thread with a report of the same issue.

In short, "default" is used to initialize the settings for new devices,
and when I looked into that "all" was only used for configuring if ip
forwarding is enabled.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |