Teledex E Series Manuel d'utilisateur télécharger pdf (Page 19)

E SERIES VoIP USER GUIDE www.teledex.com 19

Network (LAN). An external attacker only has

access to equipment in the DMZ, rather than any

other part of the network. The name is derived

from the term “demilitarized zone,” an area

between nation states in which military action is

not permitted.

3.5.3 STUN CONFIGURATION

This page is used to set the private SIP server,

STUN server, and back up SIP server information.

STUN SERVER SETTINGS

STUN means Simple Traversal of UDP through

NATs (Network Address Translation). It is a

protocol used for assisting devices behind a NAT

firewall or router with their packet routing. Used

to penetrate through NAT, start by configuring

IP and port of STUN server (default is 3478) and

Enabling SIP Stun. This should enable routing

of SIP UDP packets from the phone through a

NAT firewall. STUN only supports three NAT

methodologies: FULL CONE, restricted, and port

restricted.

STUN Server Addr: Configures the STUN server

address.

STUN Server Port: Configures the STUN server

port. The default is 3478.

STUN Effect Time: STUN detects the NAT type

circle; unit: minute.

Local SIP Port: The SIP port of this phone.

Load: Load the choices of the SIP line.

Use STUN: The STUN setting that allows (enables)

or forbids use.

3.5.4 NET SERVICE

HTTP Port: Configures the Hyper Text Transfer

Port; the default HTTP port is 80. User may

change this port to enhance the system’s security

(the number must be between 1024 and 65000).

For example, if you were to change to port 34687,

then when this port is changed, you would use

a generic IP address of format http://xxx.xxx.xxx.

xxx:34687/ to reconnect.

Telnet Port: Configures the Telnet transfer port;

the default is 23.

RTP Initial Port: Real-time Transport Protocol

initial port. RTP is the standard packet format for

delivering audio and video over IP networks.

RTP Port Quantity: Maximum number of

unpriveliged UDP ports to be used for delivering

the RTP packets; the default is 200.

Note: Settings on this page won’t take effect

unless you save and reboot the device.

If you need to change the Telnet port or HTTP

port, use a port greater than 1024, because ports

under 1024 are reserved ports.

3.5.5 FIREWALL CONFIGURATION

Firewall Settings Page: User may set up a firewall to

prevent unauthorized Internet users from accessing

private networks connected to the Internet (input

rule), or prevent unauthorized private network

devices from accessing the Internet.

Access List Supports Two Type Limits: The

input_access limit or output_access limit. Each

type supports 10 items maximum.

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Teledex E Series Manuel d'utilisateur Page 19

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