DHCP Server Configuration on Routers | Configuring the Cisco IOS DHCP Server
https://www.expertnetworkconsultant.com/configuring/how-to-configure-a-dhcp-server-on-a-hypervisor-as-an-ip-helper-on-a-layer-3-switch-for-a-number-of-vlans/
In this video, Samuel takes you through designing and configuring DHCP on a network. IP Helper-Address is explained well and the examples helpful to get you on your way.
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Before You Begin
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Before you configure the DHCP address pool, you must:
Identify DHCP options for devices where necessary, including the following:
Default boot image name
Default devices
Domain Name System (DNS) servers
Network Basic Input/Output System (NetBIOS) name server
Primary subnet
Secondary subnets and subnet-specific default device lists
Decide on a NetBIOS node type (b, p, m, or h).
Decide on a DNS domain name.
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Step 1 enable
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Example:
Device | enable
Enables privileged EXEC mode.
Enter your password if prompted.
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Step 2 configure terminal
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Example:
Device# configure terminal
Enters global configuration mode.
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Step 3 ip dhcp excluded-address low-address [high-address]
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ip dhcp excluded-address 172.16.1.1 172.16.1.50
ip dhcp excluded-address 172.16.2.1 172.16.2.100
ip dhcp pool Subnet-1610
network 172.16.1.0 255.255.255.0
next-server 172.16.1.10
dns-server 172.16.1.20
default-router 172.16.1.1
domain-name subnetone.com
lease 0 20 30
ip dhcp pool Subnet-1620
network 172.16.2.0 255.255.255.0
next-server 172.16.1.10
dns-server 172.16.1.20
default-router 172.16.2.1
lease 1 5 7
R1#
This video on Configuring the Cisco IOS DHCP Server was found here: https://youtu.be/X_H267HmnrU .
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