Why is OSPF packet header contains 2 authentication fields?

2

1

These are the OSPF header fields:

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Why does it contain 2 authentication fields?

Anas Barg

Posted 2017-10-29T13:02:34.807

Reputation: 23

Answers

1

Why does it contain 2 authentication fields?

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.

Source A.3.1 The OSPF packet header

DavidPostill

Posted 2017-10-29T13:02:34.807

Reputation: 118 938

Asked: 2017-10-29T13:02:34.807

Viewed: 83 times

Active: 2018-08-26T12:56:47.350