H3C Technologies H3C WX3000E Series Wireless Switches User Manual

Page 18

Figure 4 RADIUS packet format

Descriptions of the fields are as follows:

•

The Code field (1 byte long) indicates the type of the RADIUS packet.

Table 1

gives the possible

values and their meanings.

Table 1 Main values of the Code field

Code Packet

type Description

1 Access-Request

From the client to the server. A packet of this type carries user
information for the server to authenticate the user. It must contain

the User-Name attribute and can optionally contain the attributes

of NAS-IP-Address, User-Password, and NAS-Port.

2 Access-Accept

From the server to the client. If all the attribute values carried in
the Access-Request are acceptable, the authentication succeeds,
and the server sends an Access-Accept response.

3 Access-Reject

From the server to the client. If any attribute value carried in the
Access-Request is unacceptable, the authentication fails and the

server sends an Access-Reject response.

4 Accounting-Request

From the client to the server. A packet of this type carries user
information for the server to start or stop accounting for the user.

The Acct-Status-Type attribute in the packet indicates whether to

start or stop accounting.

5 Accounting-Response

From the server to the client. The server sends a packet of this
type to notify the client that it has received the
Accounting-Request and has successfully recorded the

accounting information.

•

The Identifier field (1 byte long) is used to match request packets and response packets and to detect
duplicate request packets. Request and response packets of the same type have the same identifier.

•

The Length field (2 bytes long) indicates the length of the entire packet, including the Code,
Identifier, Length, Authenticator, and Attribute fields. Bytes beyond this length are considered

padding and are neglected upon reception. If the length of a received packet is less than this length,
the packet is dropped. The value of this field is in the range of 20 to 4096.

•

The Authenticator field (16 bytes long) is used to authenticate replies from the RADIUS server and to
encrypt user passwords. There are two types of authenticators: request authenticator and response

authenticator.

Code

Attributes

Identifier

Length

Authenticator

This manual is related to the following products:

H3C WX5500E Series Access Controllers H3C WX3500E Series Access Controllers H3C WX2500E Series Access Controllers H3C WX6000 Series Access Controllers H3C WX5000 Series Access Controllers H3C LSWM1WCM10 Access Controller Module H3C LSUM3WCMD0 Access Controller Module H3C LSUM1WCME0 Access Controller Module H3C LSWM1WCM20 Access Controller Module H3C LSQM1WCMB0 Access Controller Module H3C LSRM1WCM2A1 Access Controller Module H3C LSBM1WCM2A0 Access Controller Module H3C WA3600 Series Access Points H3C WA2600 Series WLAN Access Points H3C S10500 Series Switches H3C S5800 Series Switches H3C S5820X Series Switches H3C S12500 Series Switches H3C S9500E Series Switches H3C MSR 5600 H3C MSR 50 H3C MSR 3600 H3C MSR 30 H3C MSR 2600 H3C MSR 20-2X[40] H3C MSR 20-1X H3C MSR 930 H3C MSR 900 H3C SR8800 H3C SR6600-X H3C SR6600 H3C SecPath F5020 H3C SecPath F5040 H3C VMSG VFW1000