IANA: BOOTP and DHCP options. This option specifies a list of the NTP servers available to the client by IP address. The servers SHOULD appear in the list in order of preference.

Jun 15, 2020 UniFi - USG: How to Configure Custom DHCP Options 3. Click on the Advanced DHCP Options header to expand this section.. 4. Under Custom DHCP Options the custom DHCP option will show as available for input.. 5. After making delegations to the custom DHCP option click Save near the bottom of the page.. Pre-defined DHCP Options . DHCP UniFi Controller - Option 43 (IP Address); DHCP NTP Server - Option 42 (IP address) ConfiguringNTP < Support < NTP The dhcp server you are using must be configured to provide the ntp-servers option Configure your dhclient to request ntp-servers (it doesn't by default). To do this add ntp-servers to the default request line in /etc/dhcp3/dhclient.conf; Create an /etc/ntp.conf with all of the other settings that you wish Configuring an NTP Server - Aruba

Dec 15, 2011

ISC DHCP 4.4 Manual Pages - dhcp-options - ISC DHCP 4.4

Jan 26, 2018 · The DHCPv6 information refresh option can specify an upper boundary for the length of time a client should wait before refreshing information retrieved from DHCPv6. The following commands were introduced or modified: import information refresh, information refresh, ipv6 dhcp pool, show ipv6 dhcp pool.

Option 15 (Domain Name) This option is used to carry the “domain” portion of a node’s Fully Qualified Domain Name. For example, “meraki.com” of mail.meraki.com. Option 42 NTP servers. This option carries the NTP servers used on the network. Option 66 (TFTP Server) This option is used to carry the IP address or hostname of a TFTP server.