3Com VCX V7122, Руководство пользователя

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V7122 Gateway User Guide
89
Figure 30
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 to which the hostname is
translated.
4
In the ‘Second IP Address’ field, enter the second IP address to which the hostname is
translated.
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, see Saving Configuration .
Internal SRV Table
The Internal SRV table is used for resolving host names to DNS A-Records. Three different
A-Records can be assigned to a hostname. Each A-Record contains the host name, priority,
weight, and port.
The ini file parameter SRV2IP is also used to configure the Internal SRV table and has the
following format: <Internal Domain Name>, <Transport Type>, <DNS Name 1>, <Priority 1>,
<Weight 1>, <Port 1>, <DNS Name 2>, <Priority 2>, <Weight 2>, <Port 2>, <DNS Name 3>,
<Priority 3>, <Weight 3>, <Port 3>. This parameter can appear up to 10 times.
If the Internal SRV table is configured, the gateway first tries to resolve a domain
name using this table. If the domain name isn’t found, the gateway performs an
SRV resolution using an external DNS server.
To configure the Internal SRV table, take these 9 steps:
1
Open the ‘Internal SRV Table’ screen ( Protocol Management menu > Routing Tables
submenu > Internal SRV Table option); the ‘Internal DNS Table’ screen is displayed.