Cisco ASA 5505 Configuration Manual page 651

Chapter 31 Configuring AAA Servers and the Local Database
If you use double authentication and enable password management in the tunnel group, then the primary
and secondary authentication requests include MS-CHAPv2 request attributes. If a RADIUS server does
not support MS-CHAPv2, then you can configure that server to send a non-MS-CHAPv2 authentication
request by using the no mschapv2-capable command.
Attribute Support
The adaptive security appliance supports the following sets of RADIUS attributes:
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RADIUS Authorization Functions
The adaptive security appliance can use RADIUS servers for user authorization for network access using
dynamic access lists or access list names per user. To implement dynamic access lists, you must
configure the RADIUS server to support it. When the user authenticates, the RADIUS server sends a
downloadable access list or access list name to the adaptive security appliance. Access to a given service
is either permitted or denied by the access list. The adaptive security appliance deletes the access list
when the authentication session expires.
TACACS+ Server Support
The adaptive security appliance supports TACACS+ authentication with ASCII, PAP, CHAP, and
MS-CHAPv1.
RSA/SDI Server Support
The RSA SecureID servers are also known as SDI servers.
This section includes the following topics:
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OL-20339-01
Authentication attributes defined in RFC 2138.
Accounting attributes defined in RFC 2139.
RADIUS attributes for tunneled protocol support, defined in RFC 2868.
Cisco IOS VSAs, identified by RADIUS vendor ID 9.
Cisco VPN-related VSAs, identified by RADIUS vendor ID 3076.
Microsoft VSAs, defined in RFC 2548.
Cisco VSA (Cisco-Priv-Level), which provides a standard 0-15 numeric ranking of privileges, with
1 being the lowest level and 15 being the highest level. A zero level indicates no privileges. The first
level (login) allows privileged EXEC access for the commands available at this level. The second
level (enable) allows CLI configuration privileges.
RSA/SDI Version Support, page 31-6
Two-step Authentication Process, page 31-6
RSA/SDI Primary and Replica Servers, page 31-6
AAA Server and Local Database Support
Cisco ASA 5500 Series Configuration Guide using ASDM
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