ZyXEL Communications MAX-207HW2R, Руководство пользователя

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Chapter 14 The Remote Management Screens
MAX-207HW2R User’s Guide
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• The SNMP screen ( Section 14.5 on page 140 ) lets you control SNMP access to
your MAX-207HW2R.
• The DNS screen ( Section 14.6 on page 143 ) lets you control DNS access to your
MAX-207HW2R.
• The Ping screen ( Section 14.7 on page 144 ) lets you control how your MAX-
207HW2R responds to other types of requests.
14.1.2 What You Need to Know
The following terms and concepts may help as you read through this chapter.
Remote Management Limitations
Remote management over LAN or WAN will not work when:
1
A filter in SMT menu 3.1 (LAN) or in menu 11.5 (WAN) is applied to block a Telnet,
FTP or Web service.
2
You have disabled that service in one of the remote management screens.
3
The IP address in the Secured Client IP field does not match the client IP
address. If it does not match, the MAX-207HW2R will disconnect the session
immediately.
4
There is already another remote management session with an equal or higher
priority running. You may only have one remote management session running at
one time.
Remote Management and NAT
When NAT is enabled:
• Use the MAX-207HW2R’s WAN IP address when configuring from the WAN.
• Use the MAX-207HW2R’s LAN IP address when configuring from the LAN.
System Timeout
There is a default system management idle timeout of five minutes (three
hundred seconds). The MAX-207HW2R automatically logs you out if the
management session remains idle for longer than this timeout period. The
management session does not time out when a statistics screen is polling.
SNMP
Simple Network Management Protocol (SNMP) is a protocol used for exchanging
management information between network devices. SNMP is a member of the