Router Interface as a DHCP Client (IOS-to-IOS)

Bundle lab · $29.99

Configure an IOS router as a DHCP server and have another IOS router obtain its uplink address dynamically via DHCP on a shared LAN. Validate the lease from both the client and server perspectives and test reachability from attached hosts.

Learning objectives

• Configure an IOS router as a DHCP server with a correctly scoped pool, default router, DNS, domain-name, lease, and excluded addresses
• Configure a router interface to obtain its IP address via DHCP using 'ip address dhcp'
• Verify DHCP operation from the client (router) and server perspectives
• Validate host reachability across a DHCP-numbered router interface

Troubleshooting focus

• Ethernet0/0 on the DHCP client router is up/down or administratively down, so no DHCPDISCOVER is sent
• DHCP pool network/mask does not match the interface subnet, so the DHCP server never allocates addresses
• Default-router option in the pool is missing or incorrect, impacting client reachability
• Excluded-address range overlaps the intended lease space and starves the pool
• Client side missing 'ip address dhcp' or the interface is statically addressed by mistake