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What is helper address in DHCP?
DHCP IP Helper addresses are IP addresses configured on a routed interface such as a VLAN Interface or a routers Ethernet interface that allows that specific device to act as a “middle man” which forwards BOOTP (Broadcast) DHCP request it receives on an interface to the DHCP server specified by the IP Helper address …
How is the MAC address used by a network switch?
Since MAC Addresses are unique to the network card and not reused, they are quite useful and important in applications. Network switches store a list of MAC addresses seen at every port and only forward packets to the ports that need to see the packet. Wireless access points often use MAC addresses for access control.
What is use of IP helper address?
Internet Protocol Helper (IP Helper) assists network administration of the local computer by enabling applications to retrieve information about the network configuration of the local computer, and to modify that configuration.
How to assign an IP address to a MAC address?
On a Cisco IOS DHCP server, it is pretty simple. In the DHCP pool configuration, use the address command to assign an IP address to a MAC address: address hardware-address .
How to assign static IP addresses using DHCP?
That is to assign static IP addresses to the users based on their MAC addresses, so that each user will get a unique IP address (via DHCP) and will not be able to change it to a different one statically. – Does any of the options you configure in your example help to solve the issue?
Can you use DHCP based on MAC address reservations?
A comment was made to use MAC address reservations in DHCP to essentially statically assign IP addresses. I didn’t know that this was an option. I currently have nearly 50 windows CE devices in my environment that I use static IP’s on for management purposed.
Can a DHCP pool assign more than one IP address?
Configure a normal DHCP pool by supplying any DHCP options and lease time. Preassigned addresses are automatically excluded from normal dynamic IP address assignment. Preassigned addresses cannot be used in host pools, but there can be multiple preassigned addresses per DHCP address pool. Only one IP address can be assigned per port.