DHCP Import all command

[lewisquin]

I understand that the import all command populates the DHCP db with information such as DNS servers, however where does it obtain this information from ?

[aghaznavi]

To import Dynamic Host Configuration Protocol (DHCP) option parameters into the DHCP server database, use the import all command in DHCP pool configuration mode. To disable this feature, use the no form of this command. imported" option parameters that were added to the specified pool in the server database. Manually configured DHCP option parameters override imported DHCP option parameters. Imported option parameters are not part of the router configuration and are not saved in NVRAM.

[zanfar]

Necropost, but `import all` copies DHCP options from the DHCP client to the DHCP server config. That is, if your WAN interface was configured as `ip address dhcp`, then those received DHCP options would be copied to the server and passed on to any downstream clients.