Overview: Client and router based DHCP connectivity issues can be the result of any number of issues, but most often it is due to a misconfiguration. Study Notes: Client and router based DHCP connectivity issues are typically the result of misconfigurations. Has the DHCP lease expired? If the lease has expired and another client […]
Overview: Dynamic Host Control Protocol (DHCP) provides configuration parameters to hosts. Study Notes: The DHCP protocol configures hosts with network settings The DHCP protocol provides other configurable parameters including conflict logging – conflicts occur when 2 hosts use the same IP address excluded addresses – range of IPs to exclude from the DHCP pool […]
Overview: The Cisco IOS DHCP feature can be configured with a few optional, but recommended, commands including TFTP, DNS and Default Gateway. Study Notes: The Cisco IOS DHCP feature can be configured with a few optional, but recommended, commands including TFTP, DNS and Default Gateway IP address. The TFTP option 150 is used to […]
Overview: The Cisco IOS DHCP client enables a device to obtain an IP address from a DHCP Server dynamically using the DHCP protocol. Study Notes: The Cisco IOS DHCP client enables a device to obtain an IP address from a DHCP Server dynamically using the DHCP protocol as specified in RFC 2131. In Cisco […]
Overview: A DHCP relay agent is any host that forwards DHCP packets between clients and servers. Study Notes: Relay agents are used to forward requests and replies between clients and servers when they are not on the same physical subnet. Relay agent forwarding is distinct from the normal forwarding of an IP router, where […]
Overview: The Cisco IOS DHCP Server feature is a full DHCP Server implementation that assigns and manages IP addresses from specified address pools within the router to DHCP clients. Study Notes: Clients send DHCPDISCOVER broadcast messages to locate a Cisco IOS DHCP Server The DHCP Server responds with a DHCPOFFER unicast message containing IP […]