net.inet.ip.forwarding is mysteriously set to 0

[Julian Elischer]

On 4/25/15 12:53 AM, wishmaster wrote:
> Hi,
>
>   --- Original Message ---
>   From: "Nikos Vassiliadis"
>   Date: 24 April 2015, 19:46:42
>   
>
>
>> Hi,
>>
>> Just saw this. Can somebody re-produce this?
>>
>>> root at m4fh2:~ # sysctl net.inet.ip.forwarding
>>> net.inet.ip.forwarding: 1
>>> root at m4fh2:~ # ifconfig bridge0 create
>>> root at m4fh2:~ # sysctl net.inet.ip.forwarding
>>> net.inet.ip.forwarding: 0

Basically all the setup scripts in /etc/rc.d (andaother setup scripts 
in /etc and /usr/local/etc)
all source /etc/rc.conf and it's friends (defaults etc.)
if any of thse scripts gets called (for example by devd when it 
notices a new interface),
then the entire chain of dependencies related to that chain will be run
**according to how the config files tell it to run* *
and not how the current sysctls are set.
if you think about it, this must be the case as htey need to change 
the sysctls as part of
their operation.

maybe we should have a script to do what you want and also uses 
sysrc(8) to make it permanent.



>> That's on GENERIC 10-STABLE from the day before yesterday.
>>
> Put
>   gateway_enable=YES
> into rc.conf and try again.
>
> Cheers,
> Vitaliy
>   
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