MX Series Voice Gateway User Manual
New Rock Technologies, Inc. 59
Table 2-25 Security Configuration Parameters
If this parameter is selected, the Telnet service is enabled to allow a terminal to log in to the
device through Telnet. It is disabled by default.
If this parameter is selected, the SSH service is enabled to allow a terminal to log in to the
device through SSH. It is disabled by default.
Specify the password for logging in to the device through Telnet or SSH.
If both the Telnet and SSH services are enabled, the password will be shared.
The password consists of 6 to 20 characters (letters, digits, or !@#$%^) and is case-sensitive.
Re-enter the specified password.
Block: The device is forbidden to respond to a Ping message.
Unblock (default): The device is allowed to respond to a Ping message.
Set the port for accessing the Web GUI of the device using HTTPS. The default value is 443
and the value range is 1 to 9999.
Set the port for accessing the Web GUI of the device using HTTP. The default value is 80 and
the value range is 1 to 9999.
If the gateway is placed in a public network environment, you should disable the Telnet function to
prevent hacker attacks.
2.7.5 VPN (Available on the HX4E/MX8A)
A VPN is a virtual private network constructed on the public network. VPN technology is based on the
idea of tunneling. It performs user authentication and data encryption to prevent data transferred over the
public network from being invalidly browsed or changed. Because the VPN is a logical network
constructed on the public network, it is unnecessary to deploy end-to-end physical links, only the VPN
server and VPN client need to be deployed instead, which greatly reduces the network expense.
With a built-in VPN client, the HX4E/MX8A is ready to be directly connected to the VPN server to avoid
the firewall issues and NAT issues.
When an untrusted network needs to be traversed between the HX4E/MX8A and the SIP server, you are
recommended to construct a VPN network, and configure VPN client for HX4E/MX8A.
After login, click Advanced > Security, and then choose L2TP or OpenVPN.
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