Practical considerations for using Azure internal load balancer and BIG-IP

Background I recently had a scenario that required me to do some testing and I thought it would be a good opportunity to share. A user told me that he wants to put BIG-IP in Azure, but he has a few...
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Updated Feb 12, 2024
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raviraj
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Jan 01, 2024

MichaelOLeary 

Thank you for explaination.  Do you have any sample configuration for above topology. I have following queries or doubts. Sorry if I am asking wrong queries. 

  • If Virtual IPs are different than external Interfaces of F5 LB then as per my understanding it needs to be configured on F5 LB, then what frontend IPs we need to configure on Azure ILB when traffic destined for Virtual IPs. 
  • If front-end IP of Azure ILB is 10.0.2.50 and external interfaces of F5 LB are within this Subnet 10.0.2.0/24 and if Virtual IPs are different then how to configure load balancing rule in Azure ILB. 
  • Usually for inbound traffic, on Azure ILB we need to configure different rules for Front-end IP with port. For example we have two ports 80 & 443 then I am not sure how one inbound rule will be sufficent for these ports.