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saidshow_251381's avatar
saidshow_251381
Icon for Cirrostratus rankCirrostratus
Jun 26, 2018

Testing IP redirect in an iRule

Hi Guys,

 

I want to be able to test an iRule that redirects based on the IP that is detected. Following this guide: https://devcentral.f5.com/articles/the-big-ip-application-security-manager-part-7-geolocation I can block with the ASM just fine using a Custom XFF Header however this applies only to the ASM. When I try to use this with the iRule only logs the actual IP and behaves accordingly to the actual IP and not the Custom XFF header I can test ASM blocks with.

 

Is there some way that I can simulate an international IP. The test environment does not have internet connectivity so an external proxy is not possible. I had hoped something I could alter in fiddler would do it?

 

Thanks

 

application delivery
fiddler
geo ip
geoblock
geoip_lookup
iRules
LTM
redirect
security
  • Yann_Desmarest's avatar
    Yann_Desmarest
    Icon for Cirrus rankCirrus
    Sep 28, 2018

    Hi,

     

    The Best way is to rely on a custom HTTP header like X-Forwarded-For to insert a fake IP address.

     

    You can't spoof easily an IP address on a TCP segment. Or you can put your computer on the same subnet as the BIG-IP, configure a fake Public IP address and configure the routing table of the BIG-IP accordingly.

     

    But it's not that simple... especially if you would like to test many different IPs

     

    Regards

     

    Yann