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Dell Configuration Guide for the S4048–ON System 9.14.2.5

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Configuring TACACS+ and RADIUS VSA Attributes for RBAC

For RBAC and privilege levels, the Dell EMC Networking OS RADIUS and TACACS+ implementation supports two vendor-specific options: privilege level and roles. The Dell EMC Networking vendor-ID is 6027 and the supported option has attribute of type string, which is titled “Force10-avpair”.  The value is a string in the following format:

protocol : attribute sep value 

“attribute” and “value” are an attribute-value (AV) pair defined in the Dell EMC Networking OS TACACS+ specification, and “sep” is “=”. These attributes allow the full set of features available for TACACS+ authorization and are authorized with the same attributes for RADIUS.

Example for Configuring a VSA Attribute for a Privilege Level 15

The following example configures an AV pair which allows a user to login from a network access server with a privilege level of 15, to have access to EXEC commands.

The format to create a Dell EMC Networking AV pair for privilege level is shell:priv-lvl=<number> where number is a value between 0 and 15.

Force10-avpair= ”shell:priv-lvl=15

Example for Creating a AVP Pair for System Defined or User-Defined Role

The following section shows you how to create an AV pair to allow a user to login from a network access server to have access to commands based on the user’s role. The format to create an AV pair for a user role is Force10-avpair= ”shell:role=<user-role>“ where user-role is a user defined or system-defined role.

In the following example, you create an AV pair for a system-defined role, sysadmin.
Force10-avpair= "shell:role=sysadmin"
In the following example, you create an AV pair for a user-defined role. You must also define a role, using the userrole myrole inherit command on the switch to associate it with this AV pair.
Force10-avpair= ”shell:role=myrole“

The string, “myrole”, is associated with a TACACS+ user group. The user IDs are associated with the user group.


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