update (dhcpv4-pool-config)

Controls the use of the DDNS service

Supported in the following platforms:

• Access Points — AP310i/e, AP410i/e, AP460i/e, AP560i/h, AP510i/e, AP505i, AP7522, AP7532, AP7562, AP7612, AP7632, AP7662, AP8432, AP8533
• Service Platforms — NX5500, NX7500, NX9500, NX9600, VX9000

Syntax

update dns {override}

Parameters

update dns {override}

Usage Guidelines

A DHCP client cannot perform updates for RR‘s A, TXT and PTR resource records. Use update (dns)(override) to enable the internal DHCP server to send DDNS updates for resource records. The DHCP server can override the client, even if the client is configured to perform the updates.

In the DHCP server‘s DHCP pool, FQDN is configured as the DDNS domain name. This is used internally in DHCP packets between the DHCP server and the DNS server.

Examples

nx9500-6C8809(config-dhcp-policy-test-pool-testPool)#update dns override

nx9500-6C8809(config-dhcp-policy-test-pool-testPool)#show context
 dhcp-pool testPool
  address 192.168.13.4 class dhcpclass1
  update dns override
  ddns server 192.168.13.9
  ddns multiple-user-class
  excluded-address range 192.168.13.25 192.168.13.28
  netbios-node-type b-node
  dns-server 192.168.13.19
  netbios-name-server 192.168.13.25
  option option1 157.235.208.80
  respond-via-unicast
  static-route 192.168.13.0/24 192.168.13.7
nx9500-6C8809(config-dhcp-policy-test-pool-testPool)#

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