Zyxel-communications P-2608HWL-Dx Series Manual de usuario descargar pdf (Pagina 294)

P-2608HWL-Dx Series User’s Guide

294 Chapter 23 Remote Management Configuration

• You have disabled that service in one of the remote management screens.

• The IP address in the Secured Client IP field does not match the client IP address. If it

does not match, the ZyXEL Device will disconnect the session immediately.

• 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.

• There is a firewall rule that blocks it.

23.1.2 Remote Management and NAT

When NAT is enabled:

• Use the ZyXEL Device’s WAN IP address when configuring from the WAN.

• Use the ZyXEL Device’s LAN IP address when configuring from the LAN.

23.1.3 System Timeout

There is a default system management idle timeout of five minutes (three hundred seconds).

The ZyXEL Device 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.

23.2 Introduction to HTTPS

HTTPS (HyperText Transfer Protocol over Secure Socket Layer, or HTTP over SSL) is a web

protocol that encrypts and decrypts web pages. Secure Socket Layer (SSL) is an application-

level protocol that enables secure transactions of data by ensuring confidentiality (an

unauthorized party cannot read the transferred data), authentication (one party can identify the

other party) and data integrity (you know if data has been changed).

It relies upon certificates, public keys, and private keys (see Chapter 19 on page 249 for more

information).

HTTPS on the ZyXEL Device is used so that you may securely access the ZyXEL Device

using the web configurator. The SSL protocol specifies that the SSL server (the ZyXEL

Device) must always authenticate itself to the SSL client (the computer which requests the

HTTPS connection with the ZyXEL Device), whereas the SSL client only should authenticate

itself when the SSL server requires it to do so (select Authenticate Client Certificates in the

REMOTE MGMT, WWW screen). Authenticate Client Certificates is optional and if

selected means the SSL-client must send the ZyXEL Device a certificate. You must apply for

a certificate for the browser from a CA that is a trusted CA on the ZyXEL Device.

Please refer to the following figure.

1 HTTPS connection requests from an SSL-aware web browser go to port 443 (by default)

on the ZyXEL Device’s WS (web server).

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Zyxel-communications P-2608HWL-Dx Series Manual de usuario Pagina 294