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Island Router CLI Reference Guide 2.3.2
Island Router CLI Reference Guide 2.3.2
  • Overview
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      • syslog level
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      • terminal length
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    • timezone
    • update
    • vpn key-exchange
    • vpn peer
      • vpn peer generate client
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      • vpn peer local-ip
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      • vpn peer name
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      • vpn peer route
      • vpn peer shutdown
      • vpn peer unapproved
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    • vpn port
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    • vpn route
    • vpn server
      • vpn server auto-trust
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      • vpn server pool
      • vpn server secret
    • vpn sort
    • write
      • write dump
      • write memory
      • write network
      • write syslog
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  • Syntax
  • Syntax Description
  • Defaults
  • Usage Guidelines
  • Examples
  • Related Commands
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  1. Commands
  2. ip (interface context)

ip dhcp-scope

Defines the range of IPv4 addresses available to DHCP clients.

Previousip dhcp-monitorNextip dhcp-server

Last updated 3 months ago

Syntax

[no] ip dhcp-scope [<low>]-[<high>]

Syntax Description

Keyword
Description

low

The decimal value of the host portion of the first IP address in the scope.

high

The decimal value of the host portion of the last IP address in the scope.

Defaults

In the abscence of this command, the default DHCP scope is "50-". Otherwise, the defaul low value is 1 and the default high value is the last available host address on the network.

Usage Guidelines

This command defines the range of IPv4 addresses assignable to DHCP clients. The low value is the host portion of the first assigneable address in the scope. If omitted, the default low value is 1.

The high value is the host portion of the last assignable address in the scope. If omitted, the default high value is the host portion of the last assignable address in the interface's network range. Note that the highest address in a network is reserved for broadcasts, and will never be assigned by the DHCP server.

Since these values are the decimal value of the host portion (only) of the IP address, the high value may exceed 254 for networks larger than /24. For example, the highest assignable value for a /22 IPv4 network (i.e., 10 bits of host address) would be 1022.

This command is valid only in interface context. Entering it does not change the of the interface.

Examples

ip dhcp-scope 100-
ip dhcp-scope 100-510

Related Commands

configuration mode
ip dhcp-server