User manual

DHCP Server Instance
17-33
17.1.25 update
 DHCP Config Commands
Controls the usage of the DDNS service
Supported in the following platforms:
• RFS7000
• RFS6000
Syntax
update dns override
Parameters
Usage Guidelines
A DHCP client cannot perform updates for RR’s A, TXT and PTR. Use
update (dns) (override) to enable the internal DHCP Server to send DDNS updates
for resource records (RR’s) A, TXT and PTR. The DHCP Server can override the client, even
if the client is configured to perform the updates.
In the network pool of DHCP Server, FQDN is configured as the DDNS domain name. This
is used internally in DHCP packets between the switch’s DHCP Server and the DNS server.
Example
RFSwitch(config-dhcp)#update dns override
RFSwitch(config-dhcp)#
update dns override Controls the usage of the DDNS service
• dns override – Dynamic DNS Configuration
• override – Enable Dynamic Updates by
onboard DHCP Server