Issue with forwarding when creates new interface [was USB Tethering and forwarding]

[wishmaster]

Hi, 

I have been seeing strange behavior of my system lately. After creating new interface the system variable net.inet.ip.forwarding becomes "0".

 E.g. manually load if_ral kernel module, then rel0 interface appears and net.inet.ip.forwarding becomes "0".

 Previously this happened when I attached smartphone with USB tethering is on.
 May be this is VIMAGE-related... Any ideas? 

Below my original first post.

> Hi, list.
> 
> Server works as router for small network and some services in the jails. When I connect Android-based smartphone and attempt to use USB Tethering, the net.inet.ip.forwarding becomes 0 and I must change it to 1 every time.
> 
> Is this normal behavior? 
> 
> FreeBSD server.local 10.1-STABLE FreeBSD 10.1-STABLE #1 r275636: Mon Dec 22 11:05:33 EET 2014 wishmaster at server.local:/usr/obj/usr/src/sys/SMS i386
> 
> Kernel has been compiled with VIMAGE
> 
> 
> Cheers,
> Vitaliy
>