Network Objects; Dynamic Dns - AudioCodes MP-202 User Manual

MP-202 Telephone Adapter
2. Select the 'Multicast Groups Management' check-box.
3. Press the 'OK' button.

13.17 Network Objects

Network Objects is a method used to abstractly define a set of LAN hosts, according to one
or more MAC address, IP address, and host name. Defining such a group can assist when
configuring system rules. For example, network objects can be used when configuring the
gateway's security filtering settings such as IP address filtering, host name filtering or MAC
address filtering.
You can use network objects in order to apply security rules based on host names instead
of IP addresses. This may be useful, since IP addresses change from time to time.
Moreover, it is possible to define network objects according to MAC addresses, making
rule application more persistent against network configuration settings.
To define a network object:
1. Click the icon 'Network Objects' in the 'Advanced' screen of the Web-based
Management; the 'Network Objects' screen appears (refer to the figure).
Network Objects
2. Click the link 'New Entry', the 'Edit Network Object' screen appears (refer to the
figure).
Edit Network Object
3. Name the network object in the Description field, and click New Entry to actually
create it; the 'Edit Item' screen appears (refer to the figure).
4. The source address can be entered in one of the following methods:
•
IP Address
•
IP Subnet
•
IP Range
•
MAC Address
•
Host Name
5. When selecting a method from the combo box, the screen refreshes, presenting the
respective fields by which to enter the relevant information.
Edit Item
6. Select a method and enter the source address accordingly.
7. Click 'OK' to save the settings.

13.18 Dynamic DNS

The Dynamic DNS (DDNS) service enables you to alias a dynamic IP address to a static
hostname, allowing your computer to be more easily accessible from various locations on
the Internet. Typically, when you connect to the Internet, your service provider assigns an
unused IP address from a pool of IP addresses, and this address is used only for the
duration of a specific connection. Dynamically assigning addresses extends the usable
pool of available IP addresses, whilst maintaining a constant domain name.
User's Manual 195
13. Advanced Settings
February 2007