H3C Technologies H3C SecPath F1000-E - Manual (Page 412)

4
Code Packet type Description
5 Accounting-Response
From the server to the client. The server sends to the client a packet of this
type to notify that it has received the Accounting-Request and has
correctly started recording the accounting information.
2. 88The Identifier field (1-byte long) is for matching request packets and response packets and
detecting retransmitted request packets. The request and response packets of the same type have
the same identifier.
3. The Length field (2-byte long) indicates the length of the entire packet, including the Code,
Identifier, Length, Authenticator, and Attribute fields. The value of the field is in the range 20 to
4096. Bytes beyond the length are considered the padding and are neglected upon reception. If
the length of a received packet is less than that indicated by the Length field, the packet is
dropped.
4. The Authenticator field (16-byte long) is used to authenticate replies from the RADIUS server, and
is also used in the password hiding algorithm. There are two kinds of authenticators: request
authenticator and response authenticator.
5. The Attribute field, with a variable length, carries the specific authentication, authorization, and
accounting information for defining configuration details of the request or response. This field is
represented in triplets of Type, Length, and Value.
• Type: One byte, in the range 1 to 255. It indicates the type of the attribute. Commonly used
attributes for RADIUS authentication, authorization and accounting are listed in Table 2 .
• Length: One byte for indicating the length of the attribute in bytes, including the Type, Length, and
Value fields.
• Value: Value of the attribute, up to 253 bytes. Its format and content depend on the Type and Length
fields.
Table 2 RADIUS attributes
No. Attribute No. Attribute
1 User-Name 45 Acct-Authentic
2 User-Password 46 Acct-Session-Time
3 CHAP-Password 47 Acct-Input-Packets
4 NAS-IP-Address 48 Acct-Output-Packets
5 NAS-Port 49 Acct-Terminate-Cause
6 Service-Type 50 Acct-Multi-Session-Id
7 Framed-Protocol 51 Acct-Link-Count
8 Framed-IP-Address 52 Acct-Input-Gigawords
9 Framed-IP-Netmask 53 Acct-Output-Gigawords
10 Framed-Routing 54 (unassigned)
11 Filter-ID 55 Event-Timestamp
12 Framed-MTU 56-59 (unassigned)
13 Framed-Compression 60 CHAP-Challenge
14 Login-IP-Host 61 NAS-Port-Type