Overbroad Summary Route Blackhole

Scenario

Ironwood Motors has asked the network engineering team to support an active business service. The immediate requirement is to ensure that ever since the routing cleanup, traffic to the newly acquired subnet next door disappears. Successful completion will provide the intended service while protecting existing operations.

Learning objectives

• static routing
• route summarization
• longest prefix match

Topology and configuration

This environment contains 6 devices (3 Hosts, 3 Routers). You configure and troubleshoot the networking skills listed above.

Curriculum topics

• Routing Protocols in Depth / When a Static Route Does Not Work

Environment

Subnetica labs run FRRouting and Linux networking with Cisco-like syntax, not Cisco IOS. Commands and behavior may differ from Cisco devices.

Addressing is regenerated on every attempt and the environment is graded automatically.