Version 6.2 91 February 2011
SIP User's Manual 3. Web-Based Management
3.3.2.1.4 DNS
The DNS submenu includes the following items:
DNS Settings (refer to ''Configuring DNS Settings'' on page 91)
Internal DNS
Table (refer to ''Configuring the Internal DNS Table'' on page 91)
Internal SRV
Table (refer to ''Configuring the Internal SRV Table'' on page 92)
3.3.2.1.4.1 Configuring DNS Settings
The 'DNS Settings' page defines the VoIP Domain Name System (DNS) server IP
addresses.
Note: For a detailed description of the DNS parameters, refer to ''DNS Parameters''
on page 659.
¾ To define the DNS server:
1. Open the 'DNS Settings' page (Configuration tab > VoIP menu > Network submenu
> DNS submenu > DNS Settings).
Figure 3-43: DNS Settings Page
2. In the 'DNS Primary Server IP' field, enter the IP address of the primary DNS server
(in dotted-decimal notation, for example, 10.8.2.255).
3. Optionally, in the 'DNS Secondary Server IP', enter the IP address of the second DNS
server (in dotted-decimal notation).
4. Click the Submit button to apply your changes.
5. Save the changes to flash memory (refer to ''Saving Configuration'' on page 336).
3.3.2.1.4.2 Configuring the Internal DNS Table
The 'Internal DNS Table' page, similar to a DNS resolution translates up to 20 host
(domain) names into IP addresses (e.g., when using the 'Outbound IP Routing Table' for
Tel-to-IP call routing). Up to four different IP addresses can be assigned to the same host
name (typically used for alternative Tel-to-IP call routing).
Notes:
• The device initially attempts to resolve a domain name using the Internal
DNS table. If the domain name isn't listed in the table, the device
performs a DNS resolution using an external DNS server (defined in
''Configuring DNS Settings'' on page 91).
• You can also configure the DNS table using the ini file table parameter
DNS2IP (see ''DNS Parameters'' on page 659).
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