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M A G N U M 6 K S W I T C H E S , M N S - 6 K U S E R G U I D E
is authentication where the user is verified against the network user database. The second stage is
authorization, where it is determined whether the user has operator access or manager privileges.
Packet
Packet encryption is a supported and is a configurable option for the Magnum MNS-6K software.
When encrypted, all authentication and authorization packets are encrypted and are
not readable by protocol capture and sniffing devices such as EtherReal or others. Packet data is
hashed and shared using MD5 and secret string defined between the Magnum 6K family of
switches and the server.
32 bits wide
4 4 8
8
8
bits
Major
Version
Minor
Version
Packet type Sequence no.
Flags
Session ID
Length
F
IGURE
72
–
TACACS packet format
•
Major Version – The major version number.
•
Minor version – The minor version number. This is intended to allow
revisions to the protocol while maintaining backwards compatibility
•
Packet type – Possible values are
TAC_PLUS_AUTHEN:= 0x01 (Authentication)
TAC_PLUS_AUTHOR:= 0x02 (Authorization)
TAC_PLUS_ACCT:= 0x03 (Accounting)
•
Sequence number – The sequence number of the current packet for the current
session
•
Flags – This field contains various flags in the form of bitmaps. The flag values signify
whether the packet is encrypted
•
Session ID – The ID for this session
•
Length - The total length of the packet body (not including the header)
Configuring
CLI commands to configure are
Syntax
show tacplus <status|servers>
-
show status of TACACS or servers configured as
servers
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