Supernet issues in nginx geo !!

shahzaib mushtaq shahzaib.cb at gmail.com
Thu Dec 15 12:35:28 UTC 2016


Here is the break down of subnet 39.32.0.0/11 :

http://prntscr.com/djq88m

According to this, geo policy should be apply to 39.45.X.X as well but its
not .

On Thu, Dec 15, 2016 at 5:11 PM, shahzaib mushtaq <shahzaib.cb at gmail.com>
wrote:

> Hi,
>
> We're using nginx geo module to redirect requests from specific
> subnets/supernets. If request is coming from following ips, it should be
> redirected towards caching node :
>
> geo $qwilt_user {
>   default 0;
>   182.184.25.66/32 1;
>   103.28.152.0/22 1;
>   203.135.0.0/18 1;
>   203.99.0.0/16 1;
>   116.71.0.0/16 1;
>   59.103.0.0/16 1;
>   119.152.0.0/13 1;
>   *39.32.0.0/11 <http://39.32.0.0/11> 1;*
>
> The critical problem here now is that if request is coming from ip
> 39.45.111.1 its not redirecting but you  can clearly see from subnet bit
> above which is /11 , means subnets from 39.32.X.X all the way to 39.63.X.X
> are summed up within subnet 39.32.0.0/11 & supposed to be redirect.
>
> Is this limitation of the geo module that it is not supporting
> supernetting ?
>
> Thanks in advance !!
>
> Shahzaib
>
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