Cisco IOS XE can act as a DHCP server, handing out IP addresses to clients on a LAN. Not as feature-rich as a dedicated DHCP server (no high availability, no DDNS, simpler reservation), but more than capable for small offices, lab environments, and branch sites. This lab configures R1 as the DHCP server for the LAN segment and verifies HOST1 receives an IP automatically.
What you will learn
- The
ip dhcp poolsyntax with network, default-router, dns-server, lease, domain-name - How to exclude addresses from the pool (for static-assigned hosts, gateway IPs, etc.)
- How to read
show ip dhcp poolandshow ip dhcp binding - The DHCP lease lifecycle visible from the server's perspective
What this lab does NOT cover
- DHCP relay (next lab, ips-02)
- DHCP options beyond the canonical ones (option 43, option 82, vendor classes)
- DHCP failover and high availability
Topology
Download the CCNA Base Topology .yaml
3 iol-xe routers + 1 alpine + 1 ioll2-xe managed switch + 1 unmanaged switch. The reusable foundation for the PingLabz CCNA Labs library.
