RFC 2865 RADIUS June 2000 Table of Contents 1. Introduction .......................................... 3 1.1 Specification of Requirements ................... 4 1.2 Terminology ..................................... 5 2. Operation ............................................. 5 2.1 Challenge/Response .............................. 7 2.2 Interoperation with PAP and CHAP ................ 8 2.3 Proxy ........................................... 8 2.4 Why UDP? ........................................ 11 2.5 Retransmission Hints ............................ 12 2.6 Keep-Alives Considered Harmful .................. 13 3. Packet Format ......................................... 13 4. Packet Types .......................................... 17 4.1 Access-Request .................................. 17 4.2 Access-Accept ................................... 18 4.3 Access-Reject ................................... 20 4.4 Access-Challenge ................................ 21 5. Attributes ............................................ 22 5.1 User-Name ....................................... 26 5.2 User-Password ................................... 27 5.3 CHAP-Password ................................... 28 5.4 NAS-IP-Address .................................. 29 5.5 NAS-Port ........................................ 30 5.6 Service-Type .................................... 31 5.7 Framed-Protocol ................................. 33 5.8 Framed-IP-Address ............................... 34 5.9 Framed-IP-Netmask ............................... 34 5.10 Framed-Routing .................................. 35 5.11 Filter-Id ....................................... 36 5.12 Framed-MTU ...................................... 37 5.13 Framed-Compression .............................. 37 5.14 Login-IP-Host ................................... 38 5.15 Login-Service ................................... 39 5.16 Login-TCP-Port .................................. 40 5.17 (unassigned) .................................... 41 5.18 Reply-Message ................................... 41 5.19 Callback-Number ................................. 42 5.20 Callback-Id ..................................... 42 5.21 (unassigned) .................................... 43 5.22 Framed-Route .................................... 43 5.23 Framed-IPX-Network .............................. 44 5.24 State ........................................... 45 5.25 Class ........................................... 46 5.26 Vendor-Specific ................................. 47 5.27 Session-Timeout ................................. 48 5.28 Idle-Timeout .................................... 49 5.29 Termination-Action .............................. 49 Rigney, et al. Standards Track