CCIE R&S V5.1 Written Exam: Implement and Troubleshoot Routing Protocol Authentication
I will be discussing Implement and Troubleshoot Routing Protocol Authentication as part of Layer 3 Technologies and Fundamental Routing Concepts CCIE Routing and Switching (R&S) V5.1 exam blueprint topics.
Implement and Troubleshoot Routing Protocol Authentication :
3.3 Fundamental routing concepts
3.3.n Implement and troubleshoot routing protocol authentication
3.3.n [i] MD5
3.3.n [ii] Key-chain
3.3.n [iii] EIGRP HMAC SHA2-256bit
3.3.n [iv] OSPFv2 SHA1-196bit
CCIE R&S V5.1 Written Exam: Implement and Troubleshoot Routing Protocol AuthenticationLet me summarize some of the key takeaways related to CCIE R&S V5.1 Written Exam: Implement and Troubleshoot Static Routing as relevant to CCIE Routing and Switching (R&S) V5.1 written exam blueprint topics.
- Key chains consist of two necessary and two are optional components. The necessary components are key number and key string. Optionally it also includes an accept-lifetime and a send-lifetime parameter
- Under key chain we need to configure key number. Key number must be match on both side of router and should be active. If multiple key numbers are configured on a router, the router will select the lowest key ID number for outbound authentication however will accept any matching valid keys in the keychain upon receipt
- OSPFv3 uses the IPsec secure to add authentication (using AH and/or ESP header) and encryption (using ESP header) to OSPFv3 packets.
- The time at which the OSPF router will stop processing packets from the SA, The time at which the OSPF router will stop using the SA to encrypt packets
I sincerely hope that you found this article and video helpful. Please post your questions or suggestions in the comments and tell me how you are preparing for your CCIE Routing and Switching (R&S) V5.1 written and lab exams.
How useful was this post?