Nortel Networks TP-1610 SIP user manual Internal DNS Table

Mediant 2000 SIP User’s Manual 5. Web Management

Table 5-4: IP to Trunk Group Routing Table

Parameter

Description

Any SIP incoming call whose destination number matches the prefix defined in the ‘Destination Phone Prefix’ field and its source number matches the prefix defined in the adjacent ‘Source Phone Prefix‘ field and its source IP address matches the address defined in the ‘Source IP Address’ field, is assigned to the trunk group entered in the field to the right of these fields.

Note that IP to trunk group routing can be performed according to any combination of source / destination phone prefixes and source IP address, or using each independently.

Note: For available notations that represent multiple numbers (used in the prefix columns), refer to Section 5.8.3.1 on page 47.

Trunk Group ID	In each of the Trunk Group ID fields, enter the trunk group ID to which
	calls that match these prefixes are assigned.
Profile ID	Enter the number of the IP profile that is assigned to the routing rule.

5.8.4.3Internal DNS Table

The internal DNS table, similar to a DNS resolution, translates hostnames into IP addresses. This table is used when hostname translation is required (e.g., ‘Tel to IP Routing’ table, etc.). Two different IP addresses can be assigned to the same hostname. If the hostname isn’t found in this table, the gateway communicates with an external DNS server.

Assigning two IP addresses to hostname can be used for alternative routing (using the ‘Tel to IP Routing’ table).

To configure the internal DNS table, take these 7 steps:

1.Open the ‘Internal DNS Table’ screen (Protocol Management menu > Routing Tables submenu > Internal DNS Table option); the ‘Internal DNS Table’ screen is displayed.

Figure 5-7: Internal DNS Table Screen

2.In the ‘DNS Name’ field, enter the hostname to be translated. You can enter a string up to 31 characters long.

3.In the ‘First IP Address’ field, enter the first IP address that the hostname is translated to.

4.In the ‘Second IP Address’ field, enter the second IP address that the hostname is translated to.

5.Repeat steps 2 to 4, for each Internal DNS Table entry.

6.Click the Submit button to save your changes.

7.To save the changes so they are available after a power fail, refer to Section 5.12 on page 84.

Version 4.4 53 July 2005