6.3.c Implement and troubleshoot IPv4 and IPv6 DHCP

6.3.c [ii] DHCP options

Cisco routers running Cisco IOS software include Dynamic Host Configuration Protocol (DHCP) server and relay agent software. The Cisco IOS DHCP server is a full DHCP server implementation that assigns and manages IP addresses from specified address pools within the router to DHCP clients. The DHCP server can be configured to assign additional parameters such as the IP address of the domain name system (DNS) server and the default router.

There can be various types of DHCP IPv6 server options.

● Refresh options

● NISP or NISP + related options

● SIP or SNTP

● Stateless server options

Adam, Paul (2014-07-12). All-in-One CCIE V5 Written Exam Guide (Kindle Locations 5933-5943).  . Kindle Edition.

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_dhcp/configuration/15-mt/dhcp-15-mt-book/config-dhcp-server.html