
Customizing the DNS Client
304234-A Rev 00
9-5
Disabling the Recursion Bit
If the first DNS server that the router contacts does not have the requested
information, you can set a recursion bit in the DNS information header packet.
This bit instructs that server to contact another server that can respond to the
request.
The recursion bit is enabled by default. If you do not want to contact more than
one server, you must disable the recursion bit.
Using the BCC
To disable the recursion bit using the BCC, navigate to the dns prompt and enter:
dns# recursion disabled
dns#
To reenable the recursion bit,
navigate to the dns prompt and enter:
dns# recursion enabled
dns#
Using Site Manager
To disable the recursion bit, complete the following tasks:
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
choose
Protocols
.
The Protocols menu opens.
2. Choose
Global Protocols
. The Global Protocols menu opens.
3. Choose
DNS
. The DNS menu opens.
4. Choose
Global
. The Edit DNS Global Parameters window
opens.
5. Set the
Recursion
parameter to
Disable
.
Click on
Help
or see the parameter
description on page A-30
.
6. Click on
OK
. You return to the Configuration Manager
window.
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