ZyXEL Communications Corporation VMG1312T10C 사용자 설명서

 Chapter 25 Remote Management

VMG1312-T10C User’s Guide

To change your Device’s security settings, click Maintenance > Remote MGMT > ICMP. The 
screen appears as shown.

If an outside user attempts to probe an unsupported port on your Device, an ICMP response packet 
is automatically returned. This allows the outside user to know the Device exists. Your Device 
supports anti-probing, which prevents the ICMP response packet from being sent. This keeps 
outsiders from discovering your Device when unsupported ports are probed. 

Note: If you want your device to respond to pings and requests for unauthorized services, 

you will also need to configure the firewall accordingly by disabling SPI. 

Maintenance > Remote MGMT > ICMP

The following table describes the labels in this screen.  

You can use Secure SHell (SSH) to securely access the Device’s command line interface. Specify 
which interfaces allow SSH access and from which IP address the access can come. SSH is a secure 
communication protocol that combines authentication and data encryption to provide secure 
encrypted communication between two hosts over an unsecured network.

Maintenance > Remote MGMT > ICMP

Respond to Ping on The Device will not respond to any incoming Ping requests when Disable is selected. 

Select LAN to reply to incoming LAN Ping requests. Select WAN to reply to incoming 
WAN Ping requests. Otherwise select LAN & WAN to reply to both incoming LAN and 
WAN Ping requests. 

Secured Client IP 
Address

A secured client is a “trusted” computer that is allowed to send Ping requests to the 
Device.

Select All to allow any computer to send Ping requests to the Device.

Choose Range to just allow the computers with an IP address in the range that you 
specify to send Ping requests to the Device.

Apply

Click this to save your changes.

Cancel

Click this to restore your previously saved settings.