How to Solve for Overlapping IP Addresses - On the Brightboard Lessons

Presented by

Buu Lam, F5

About this talk

Overlapping IP addressing can create nightmares for network engineers and architects. But the solution can be pretty easy with the right tools! We'll discuss how in this Brightboard Lesson Join this 5 min session: One of the most common headaches in NetOps is thoughtfully planning out internal IP address allocations. How many IP's will be needed? Does the site contain microservices? Will the workloads in a site need to connect to other sites? When it comes to supporting deployments in public clouds, many resources use the exact same CIDR blocks, for example,,, and - With services being spun up automatically, in many situations, the owner of the service may not have any idea which IP addresses to use and simply choose a common default. Having the same IP address used at multiple connected sites poses real challenges for transit routing. F5 Distributed Cloud Services solve the IP Address overlap problem once and for all by connecting apps via services on its Global Network. Distributed Cloud Network Connect establishes connectivity across subnets and sites with orchestrated VPNs using MPLS to ensure segmentation. Distributed Cloud App Connect adds control and visibility at L4 and L7 by acting as a distributed reverse-proxy, allowing full abstraction of IP addresses to simplify the routing at each end. All that an admin needs to do is deploy Distributed Cloud CE's to the sites and configure a Load Balancer. To understand how Distributed Cloud Services solve this problem before diving in to this solution, F5 staffer @buulam has a whiteboard session covering exactly what Distributed Cloud does at each step of the way.

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