OSPF Configuration Example 2: Multi-Area Setup - Tutorials<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.zframez.com\/articles\/routing\/ospf-configuration-example-multi-area-setup\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OSPF Configuration Example 2: Multi-Area Setup - Tutorials\" \/>\n<meta property=\"og:description\" content=\"Configuring OSPF with Multiple Areas : Earlier, we covered how to configure OSPF with two routers in the same area. In this guide, we\u2019ll walk through an example of configuring OSPF with multiple areas. Using four routers and three areas, we\u2019ll demonstrate the setup process. 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OSPF Configuration Commands Adjacency Verification Understanding the \"show\" commands OSPF Configuration Example 1: Adjacency Formation Between Two Cisco Routers In previous chapters, you learned key OSPF concepts like\u2026","rel":"","context":"In "ospf"","block_context":{"text":"ospf","link":"https:\/\/www.zframez.com\/articles\/category\/routing\/ospf"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-adjacency-topology.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-adjacency-topology.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-adjacency-topology.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-adjacency-topology.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-adjacency-topology.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-adjacency-topology.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":449,"url":"https:\/\/www.zframez.com\/articles\/routing\/ospf-configuration-examples-dr-bdr-election","url_meta":{"origin":611,"position":1},"title":"OSPF Configuration Example 3 : DR BDR election","author":"sajith achipra","date":"July 26, 2024","format":false,"excerpt":"Configuring OSPF DR and BDR with Interface Priority and Router ID In all shared networks like Ethernet, Frame Relay, and ATM, OSPF selects one router as the DR and another as the BDR. The DR reduces the number of adjacencies in these networks, preventing the flow of duplicate LSAs. You\u2026","rel":"","context":"In "ospf"","block_context":{"text":"ospf","link":"https:\/\/www.zframez.com\/articles\/category\/routing\/ospf"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ospf-topology-for-DR-BDR-election-with-priority.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ospf-topology-for-DR-BDR-election-with-priority.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ospf-topology-for-DR-BDR-election-with-priority.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ospf-topology-for-DR-BDR-election-with-priority.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ospf-topology-for-DR-BDR-election-with-priority.png?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":633,"url":"https:\/\/www.zframez.com\/articles\/routing\/ospf-redistribution-commands","url_meta":{"origin":611,"position":2},"title":"OSPF Configuration Example 4 : Redistribution Commands","author":"sajith achipra","date":"August 29, 2024","format":false,"excerpt":"Configuring Redistribution, E1 Metric, and Route Tags in OSPF In the tutorial \"Understanding OSPF Redistribution\" , we discussed different concepts in redistribution. In this one, we\u2019ll go through the various OSPF commands related to redistribution. We\u2019ll walk through a step-by-step process to configure redistribution in OSPF, focusing on scenarios like\u2026","rel":"","context":"In "ospf"","block_context":{"text":"ospf","link":"https:\/\/www.zframez.com\/articles\/category\/routing\/ospf"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/OSPF-Redistribution-Topology-3.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/OSPF-Redistribution-Topology-3.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/OSPF-Redistribution-Topology-3.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/OSPF-Redistribution-Topology-3.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/OSPF-Redistribution-Topology-3.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/OSPF-Redistribution-Topology-3.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":474,"url":"https:\/\/www.zframez.com\/articles\/routing\/understanding-ospf-redistribution","url_meta":{"origin":611,"position":3},"title":"Understanding OSPF Redistribution","author":"sajith achipra","date":"August 2, 2024","format":false,"excerpt":"Table of Contents What is Route Redistribution? Redistribution in OSPF How LSA 4 is used in Redistribution? How LSA 5 is Used in Redistribution? What is \"Forwarding Address\" in LSA 5? OSPF E1 and E2 Routes Configuring Redistribution Understanding OSPF Route Redistribution and LSA Types OSPF (Open Shortest Path First)\u2026","rel":"","context":"In "ospf"","block_context":{"text":"ospf","link":"https:\/\/www.zframez.com\/articles\/category\/routing\/ospf"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/Redistribution-from-EIGRP-to-RIP.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/Redistribution-from-EIGRP-to-RIP.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/Redistribution-from-EIGRP-to-RIP.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/Redistribution-from-EIGRP-to-RIP.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/Redistribution-from-EIGRP-to-RIP.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/08\/Redistribution-from-EIGRP-to-RIP.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":415,"url":"https:\/\/www.zframez.com\/articles\/routing\/understanding-ospf-dr-bdr-election","url_meta":{"origin":611,"position":4},"title":"Understanding OSPF DR BDR Election","author":"sajith achipra","date":"July 24, 2024","format":false,"excerpt":"Table of Contents What is a Designated Router or DR? What is a Backup Designated Router or BDR? DR BDR Election Process Why does OSPF elect the BDR before the DR? What is a DR Other? What happens after the election? How BDR will know DR is alive? OSPF Network\u2026","rel":"","context":"In "ospf"","block_context":{"text":"ospf","link":"https:\/\/www.zframez.com\/articles\/category\/routing\/ospf"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-Adjacency-with-out-DR.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-Adjacency-with-out-DR.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-Adjacency-with-out-DR.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-Adjacency-with-out-DR.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-Adjacency-with-out-DR.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/OSPF-Adjacency-with-out-DR.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":262,"url":"https:\/\/www.zframez.com\/articles\/routing\/bgp-configuration-example-ebgp-loopback","url_meta":{"origin":611,"position":5},"title":"BGP Configuration Example 2: EBGP Using Loopback Interfaces","author":"sajith achipra","date":"July 18, 2024","format":false,"excerpt":"BGP Configuration Example In the last tutorial \u201cBGP configuration example : EBGP Peering\u201c, we configured an EBGP peering between two routers using their physical interface IP addresses. In this BGP configuration example, we\u2019ll use loopback interfaces for BGP peering. We prefer loopback interfaces when there are multiple paths between peers\u2026","rel":"","context":"In "bgp"","block_context":{"text":"bgp","link":"https:\/\/www.zframez.com\/articles\/category\/routing\/bgp"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ebgp-configuration-topology.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ebgp-configuration-topology.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ebgp-configuration-topology.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ebgp-configuration-topology.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ebgp-configuration-topology.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.zframez.com\/articles\/wp-content\/uploads\/2024\/07\/ebgp-configuration-topology.png?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.zframez.com\/articles\/wp-json\/wp\/v2\/posts\/611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zframez.com\/articles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zframez.com\/articles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zframez.com\/articles\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zframez.com\/articles\/wp-json\/wp\/v2\/comments?post=611"}],"version-history":[{"count":5,"href":"https:\/\/www.zframez.com\/articles\/wp-json\/wp\/v2\/posts\/611\/revisions"}],"predecessor-version":[{"id":860,"href":"https:\/\/www.zframez.com\/articles\/wp-json\/wp\/v2\/posts\/611\/revisions\/860"}],"wp:attachment":[{"href":"https:\/\/www.zframez.com\/articles\/wp-json\/wp\/v2\/media?parent=611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zframez.com\/articles\/wp-json\/wp\/v2\/categories?post=611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zframez.com\/articles\/wp-json\/wp\/v2\/tags?post=611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}