ZyXEL Communications MGS3520 Series, Руководство пользователя

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MGS3520 Series User’s Guide
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H A P T E R
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Access Control
This chapter describes how to control access to the Switch.
42.1 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.
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.
42.2 The Access Control Main Screen
Click Management > Access Control in the navigation panel to display the main screen as
shown.
Figure 224
Management > Access Control
42.3 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
Table 171
Access Control Overview
Console Port SSH Telnet FTP Web SNMP
One session Share up to nine
sessions One session Up to five accounts No limit