
Configuring RIPSO on an IP Interface
117356-A Rev. A 10-3
Security Label Format
A RIPSO security label is three or more bytes long and specifies the security
classification level and protection authority values for the datagram (Figure 10-
1).
Figure 10-1. RIPSO Security Label
The format of the security label is as follows:
• Octet 1 contains a type value of 82
(16)
, identifying the basic security option
format.
• Octet 2 specifies the length of the option (three or more octets, depending on
the presence or absence of authority flags).
• Octet 3 specifies the security classification levels for the datagrams. Valid
security classification levels include
3D
(16)
Top Secret
5A
(16)
Secret
96
(16)
Confidential
AB
(16)
Unclassified
Type Length
Security
classification
Protection
authority
IP datagram...
1 octet 1 octet
or more
1 octet 1 octet
1P0013A
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