Introduction To Dhcp Server; Application Environment; Dhcp Address Pool - 3Com MSR 50 Series Configuration Manual

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Introduction to DHCP
Server
Application
Environment

DHCP Address Pool

DHCP S
When configuring the DHCP server, go to these sections for information you are
interested in:
"Introduction to DHCP" on page 565
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"DHCP Server Configuration Task List" on page 575
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"Enabling DHCP" on page 575
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"Enabling the DHCP Server on an Interface" on page 575
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"Configuring an Address Pool for the DHCP Server" on page 576
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"Configuring the DHCP Server Security Functions" on page 582
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"Configuring the Handling Mode for Option 82" on page 584
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"Displaying and Maintaining the DHCP Server" on page 585
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"DHCP Server Configuration Examples" on page 585
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"Troubleshooting DHCP Server Configuration" on page 588
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n
The DHCP server configuration is supported only on Layer 3 Ethernet interfaces
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(or subinterfaces), virtual Ethernet interfaces, VLAN interfaces, serial interfaces,
and loopback interfaces. The secondary IP address pool configuration is not
supported on serial or loopback interfaces.
DHCP Snooping must be disabled on the DHCP server.
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The DHCP server is well suited to the network where:
It is hard to implement manual configuration and centralized management.
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The hosts are more than the assignable IP addresses and it is impossible to
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assign a fixed IP address to each host. For example, an ISP limits the number of
hosts to access the Internet at a time, so lots of hosts need to acquire IP
addresses dynamically.
A few hosts need fixed IP addresses.
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Address pool structure
The DHCP server selects an IP address from an address pool and sends it together
with other parameters to the client.
The address pool database is organized as a tree. The root of the tree is the
address pool for natural networks, branches are address pools for subnets, and
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ERVER ONFIGURATION