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These are the OSPF header fields:
Why does it contain 2 authentication fields?
Anas Barg
Posted 2017-10-29T13:02:34.807
Reputation: 23
It doesn't, the diagram is 32 bits wide. There is 1 64-bit field (shown over 2 lines in the diagram):
Authentication A 64-bit field for use by the authentication scheme.
Authentication
A 64-bit field for use by the authentication scheme.
Source A.3.1 The OSPF packet header
DavidPostill
Reputation: 118 938
Asked: 2017-10-29T13:02:34.807
Viewed: 83 times
Active: 2018-08-26T12:56:47.350