1. PANA Implementation in Open Diameter
Victor Fajardo

2. General Information Programming Language: C++
License: LGPL (Lesser GNU Public License)
Supported OS: Linux, Windows XP
Source code location:
“libpana” directory in the source tree provides PANA API
Diameter and EAP implementations are also available

3. Functional Architecture
Defines PANA API
Independent of EAP implementation
PANA API is designed to work with any EAP implementation including Open Diameter EAP API
Abstracted transport model
provides OS independency
Multi-threading model to gain better performance
Dictionary-based message parser
Parser dictionary provides flexibility in accommodating changing message formats
XML is used as the dictionary format
Re-using Diameter message parser since Diameter and PANA message formats are similar

4. Application Interface
Core object instances
XML configuration loader
Memory manager and message buffer pool
Fast search trees for use as session database (PAA)
Thread pool manager
Auxiliary objects (timers, generators etc)
Session based PaC and PAA objects
Event handlers for message processing and notifications
Derives from extensible state machine objects which implements common PANA states (termination, re-authentication etc)
Management of attributes (id’s, SA, MSK … etc)

5. Transport Model Raw access to interfaces. IP Stack bypass.
Has to provide IP and link-layer header inspection
Handling of unspecified IP address
Underlying transport implementation is complex

6. PaC Architecture

7. PAA Architecture

8. Future Plan PANA API EP API support Bootstrapping other protocols
NAP and ISP separate authentication support
EP API support
Support separate EP from PAA
Presence of PaC indications (to support PANA authentication initiated by PAA)
Bootstrapping other protocols
IP-sec (draft-ietf-pana-ipsec)
DHCP authentication (draft-tschofenig-pana-bootstrap-rfc3118)