ZyXEL Communications MES3500-24 用户手册
MES3500-24/24F User’s Guide
290
C
H A P T E R
3 8
Access Control
This chapter describes how to control access to the Switch.
38.1 Access Control Overview
A console port and FTP are allowed one session each, Telnet and SSH share nine sessions, up to five
Web sessions (five different user names and passwords) and/or limitless SNMP access control
sessions are allowed.
Web sessions (five different user names and passwords) and/or limitless SNMP access control
sessions are allowed.
A console port access control session and Telnet access control session cannot coexist when multi-
login is disabled. See the CLI Reference Guide for more information on disabling multi-login.
login is disabled. See the CLI Reference Guide for more information on disabling multi-login.
38.2 The Access Control Main Screen
Click Management > Access Control in the navigation panel to display the main screen as
shown.
shown.
Figure 172
Management > Access Control
38.3 About SNMP
Simple Network Management Protocol (SNMP) is an application layer protocol used to manage and
monitor TCP/IP-based devices. SNMP is used to exchange management information between the
network management system (NMS) and a network element (NE). A manager station can manage
and monitor the Switch through the network via SNMP version one (SNMPv1), SNMP version 2c or
monitor TCP/IP-based devices. SNMP is used to exchange management information between the
network management system (NMS) and a network element (NE). A manager station can manage
and monitor the Switch through the network via SNMP version one (SNMPv1), SNMP version 2c or
Table 118
Access Control Overview
Console Port
SSH
Telnet
FTP
Web
SNMP
One session
Share up to nine
sessions
sessions
One session
Up to five accounts No limit