Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Govind_32899's avatar
Govind_32899
Icon for Nimbostratus rankNimbostratus
Sep 08, 2017

Integration of WAF Silverline with existing system ( GTM & LTM )

In our setup request for website sites first goes to the DNS server which is having a NS as GTM and then request hits at GTM and gets the IP of LTM which is avilable across the data center .   In ...
big-ip
BIG-IP DNS
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Luke_Lehman_552's avatar
Luke_Lehman_552
Historic F5 Account
Sep 09, 2017

Hi Govind - if I understand you correctly, you're asking how you could place Silverline WAF in front of your application that resides behind a LTM that is in your data center?

 

If so, you could utilize Silverline WAF in the following:

 

  1. When setting up Silverline WAF, you'd assign your LTM's externally reachable IP address for the application
  2. You'll be provided a front-end IP address from Silverline to use.
  3. You'd put that front-end Silverline IP Address in your GTM as the address used to reach the application.

So it would follow this sort of approach:

 

External Address of your application that you could go to directly: 100.100.100.100 Front-End IP from Silverline: 200.200.200.200 How'd you configure GTM: Use 200.200.200.200

 

Traffic Flow:

 

  1. DNS Request for
  2. DNS Response from GTM: 200.200.200.200
  3. Client Request to 200.200.200.200
  4. Silverline Receives Request; Performs WAF Functionality; forwards request to 100.100.100.100
  5. Response from application flows back through Silverline to Client

Let me know if that was what you were after or not.

 

Thanks!

 

Luke