Dell W-Series 207 Instant 6.5.1.0-4.3.1.0 User Guide - Page 222

Table 48: Dynamic DNS Configuration Parameters Parameter Description Example Key Configures a Transaction Signature (TSIG) shared hmac-sha1:arubaddns: secret key to secure the dynamic updates. 16YuLPdH21rQ6PuK9udsVLtJw3Y= The following algorithm names are supported: l hmac-md5 (used by default if algo-name is not specified) l hmac-sha1 l hmac-sha256 NOTE: When a key is configured, the update is successful only if W-IAP and DNS server clocks are in sync. Server IP Enter the server IP address of the DNS server to which the client updates are sent. 10.17.132.85 Interval Specify the time interval (in secs) at which the 900 DNS updates are to be synced to the server. The default time interval is 12 hours, minimum time interval is 15 minutes, and maximum time interval is 100 days. 3. Click OK. In the CLI: To enable dynamic DNS on a W-IAP (Instant AP)(config)# dynamic-dns-ap (Instant AP)(config)# end (Instant AP)# commit apply To configure a TSIG key and server IP address: (Instant AP)(config)# dynamic-dns-ap key (Instant AP)(config)# dynamic-dns-ap server (Instant AP)(config)# end (Instant AP)# commit apply To configure a time interval: (Instant AP)(config)# dynamic-dns-interval (Instant AP)(config)# end (Instant AP)# commit apply Configuring Dynamic DNS Updates for Clients You can enable DDNS updates when creating or editing a DHCP scope for Distributed, L3 clients. When enabled, the DDNS updates of the clients are periodically sent during the specified time to the DNS server that is configured in the DHCP profile. If there is no DNS server configured in the DHCP profile, the client DNS updates will be dropped. The DDNS updates are secured by using TSIG shared secret keys, when communicating between the client and the server. For more information, see Configuring Distributed DHCP Scopes on page 209. 222 | Dynamic DNS Registration Dell Networking W-Series Instant 6.5.1.0-4.3.1.0 | User Guide