Introduction To The Ip Session; Ip Session Supported By The S9300&S9300E - Huawei S9300 Configuration Manual

S9300&S9300E Terabit Routing Switch
Configuration Guide - IP Service

4.1 Introduction to the IP Session

This section describes the concepts related to the IP session.
IP session, also called DHCP proxy, is an application of the DHCP protocol. It manages DHCP
users.
l
l
Typical Application of IP Session
Figure 4-1 Typical application of IP session
DHCP clients
As shown in
run on the aggregation switch SwitchA. SwitchA allocates IP addresses to users through the
DHCP server, and the AAA server authenticates and authorizes users. Thus the users can be
online once they power on the computer. The DHCP server can be a remote server or a local
server. If a local server is used, it indicates that the S9300&S9300E functions as the DHCP
server.
4.2 IP Session Supported by the S9300&S9300E
The S9300&S9300E supports the access of IP sessions to Layer 3 sub-interfaces, but does not
support the access to main interfaces.
Issue 01 (2012-03-15)
The DHCP proxy authenticates and authorizes access users with the local, remote (RADIUS
or HWTACACS), and non-authentication policies.
After the status of access users becomes stable, the DHCP proxy is able to manage the
specified user, for example, carry out accounting for the user again or disconnect the user
from the network.
SwitchB
Figure 4-1, SwitchB is the access device of DHCP users, the IP session service is
NOTE
For the configurations of AAA and user management function on the S9300&S9300E, see the
S9300&S9300E Terabit Routing Switch Configuration Guide - Security.
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SwitchA
4 IP Session Configuration
DHCP server
AAA server
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