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Island Router CLI Reference Guide 2.3.2
Island Documentation IntroductionIsland Router CLI Reference Guide 2.3.2
Island Router CLI Reference Guide 2.3.2
Island Documentation IntroductionIsland Router CLI Reference Guide 2.3.2
  • Overview
  • Context Sensitive Help
  • URL Format
  • Password Encryption and Public Key Authentication
  • Command Scheduler
  • Commands
    • auto-update
      • auto-update days
      • auto-update time
    • backup
      • backup interval
      • backup url
    • clear connections
    • clear dhcp-client
    • clear dump
    • clear everything
    • clear log
    • clear network
    • clear package
    • clear pin
    • clear ssh client-keys
    • clear ssh host-keys
    • clear ssh known-hosts
    • clear syslog
    • clear update
    • clear vpn-keys
    • compact
    • configure authorized-keys
    • configure known-hosts
    • configure network
    • configure terminal
    • description
    • duplex
    • end
    • ethernet polling
    • exit
    • help
    • history
      • history empty
      • history filter
      • history interval
      • history output-format
      • history rename
      • history url
      • history utc
    • hostname
    • interface
    • ip (interface context)
      • ip address
      • ip autoconfig
      • ip autovlan
      • ip arp-scan
      • ip arp-spoof
      • ip priority
      • ip dhcp6-client
      • ip dhcp6-server
      • ip dhcp-client
      • ip dhcp-lease
      • ip dhcp-monitor
      • ip dhcp-scope
      • ip dhcp-server
      • ip ident4
      • ip ident6
      • ip mtu
      • ip nat4
      • ip nat6
      • ip router-advertise
      • ip router-solicit
    • ip (global context)
      • ip ddns name
      • ip ddns ipv6
      • ip dhcp-reserve
      • ip dns local-only
      • ip dns mode
      • ip firewall
      • ip ipv6
      • ip load-sharing
      • ip max-clients
      • ip port-forward
      • ip route
    • led level
    • login confirm
    • login console
    • login remote
    • login support
    • mac output-format
    • ntp
    • package
    • packet level
    • parent
    • password
    • ping
    • reload
    • rollback
    • show clock
    • show config authorized-keys
    • show config known-hosts
    • show dumps
    • show free-space
    • show hardware
    • show history
    • show interface
    • show interface summary
    • show interface transceivers
    • show ip dhcp-reservations
    • show ip interface
    • show ip neighbors
    • show ip recommendations
    • show ip routes
    • show ip sockets
    • show log
    • show ntp
    • show packages
    • show public-key
    • show running-config
    • show ssh-client-keys
    • show startup-config
    • show stats
    • show syslog
    • show users
    • show vpns
    • show version
    • speed
    • ssh
    • stats
    • syslog
      • syslog level
      • syslog protocol
      • syslog server
    • telnet
    • terminal
      • terminal length
      • terminal terminal-type
      • terminal width
    • timezone
    • update
    • vpn key-exchange
    • vpn peer
      • vpn peer generate client
      • vpn peer host
      • vpn peer local-ip
      • vpn peer mac
      • vpn peer name
      • vpn peer public-key
      • vpn peer remote-ip
      • vpn peer route
      • vpn peer shutdown
      • vpn peer unapproved
      • vpn peer visible
    • vpn port
    • vpn renumber
    • vpn route
    • vpn server
      • vpn server auto-trust
      • vpn server auto-visible
      • vpn server no-local
      • vpn server pool
      • vpn server secret
    • vpn sort
    • write
      • write dump
      • write memory
      • write network
      • write syslog
      • write terminal
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  • Syntax
  • Syntax Description
  • Defaults
  • Usage Guidelines
  • Examples
  • Related Commands
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  1. Commands
  2. ip (global context)

ip dhcp-reserve

Assigns a dedicated IP address to a device.

Syntax

[no] ip dhcp-reserve <ip> <mac>

Syntax Description

Keyword
Description

no

(Optional) Removes an existing DHCP reservation

ip

The IP address to be assigned to the device.

mac

The MAC address of the device.

Defaults

There are no DHCP reservations by default.

Usage Guidelines

This command reserves an IP address for a client. The DHCP server will not assign a reserved IP address to any other client. When the client makes a DHCP request to the Island, the DHCP server will assign the specified address to the client, if able.

If the server is unable to assign the address (perhaps because the address is already in use by another client), it will assign another address from the DHCP scope. When the client renews its DHCP lease, the DHCP server will again try to assign the reserved address.

The reserved IP address must be a valid address on one of the interfaces on the Island. However, it does not need to be within the DHCP scope assigned to the interface.

Only one DHCP reservation is allowed for a given device.

Examples

ip dhcp-reserve 192.168.3.77 00:00:5E:00:53:7A

Related Commands

Previousip ddns ipv6Nextip dns local-only

Last updated 10 months ago