Categories R&S

OSPF – Implement and troubleshoot authentication – SHA authentication

Let’s finish this authentication series by having a look at the strongest one.   Theory: HMAC-SHA algorithms for cryptographic authentication with OSPFv2 is defined in RFC 5709. Note that as per Cisco config guide, this features was release in IOS version 15.4(1)T.   Requirements: Configure OSPF HMAC-SHA based authentication in area 0.   Diagram:   […]

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