Specifications

Configuring Resource Pool Management
RPM Overview
DC-720
Cisco IOS Dial Technologies Configuration Guide
Direct Remote Services
Direct remote services is an enhancement to Cisco RPM implemented in Cisco IOS Release 12.0(7)T
that enables service providers to implement wholesale dial services without using VPDN tunnels. A
customer profile that has been preconfigured with a PPP template to define the unique PPP services for
the wholesale dial customer is selected by the incoming DNIS and call type. At the same time, the DNIS
is used to select AAA server groups for authentication/authorization and for accounting for the customer.
PPP Common Configuration Architecture (CCA) is the new component of the RPM customer profile that
enables direct remote services. The full PPP command set available in Cisco IOS software is
configurable per customer profile for wholesale dial applications. A customer profile typically includes
the following PPP parameters:
• Local or named IP address pools
• Primary and secondary DNS or WINS addresses
• Authentication method (PAP, CHAP, MS-CHAP)
• Multilink PPP links per bundle limits
The AAA session information is selected by the incoming DNIS. AAA server lists provide the IP
addresses of AAA servers for authentication, authorization, and accounting in the wholesale local
network of the customer. The server lists for both authentication and authorization and for accounting
contain the server addresses, AAA server type, timeout, retransmission, and keys per server.
When direct remote services is implemented on a Cisco NAS, the following sequence occurs:
1. The NAS sends an authorization request packet to the AAA server by using the authentication
method (PAP, CHAP, MSCHAP) that has been configured through PPP.
2. The AAA server accepts the authorization request and returns one of the following items to the NAS:
– A specific IP address
– An IP address pool name
– Nothing
3. Depending on the response from the AAA server, the NAS assigns one of the following items to the
user through the DNS/WINS:
– The IP address returned by the AAA server
– An IP address randomly assigned from the named IP address pool
– An IP address from a pool specified in the customer profile template
Note If the AAA server sends back to the NAS a named IP address pool and that name does not exist on
the NAS, the request for service is denied. If the AAA server does not send anything back to the NAS
and there is an IP address pool name configured in the customer profile template, an address from
that pool is used for the session.
RPM Process with RPMS and SS7
For information on SS7 implementation for RPM, refer to the document Cisco Resource Pool Manager
Server 1.0 SS7 Implementation.