Allied Telesis AT-WR4500 manual Dhcp Client and Server, Finally, add a Dhcp server

116	AT-WR4500 Series - IEEE 802.11abgh Outdoor Wireless Routers
	RouterOS v3 Configuration and User Guide

6DHCP and DNS

6.1DHCP Client and Server

6.1.1 General Information

Summary

The DHCP (Dynamic Host Configuration Protocol) is needed for easy distribution of IP addresses in a network. The RouterOS implementation includes both - server and client parts and is compliant with RFC2131.

General usage of DHCP:

•IP assignment in LAN, cable-modem, and wireless systems

•Obtaining IP settings on cable-modem systems

IP addresses can be bound to MAC addresses using static lease feature.

DHCP server can be used with RouterOS HotSpot feature to authenticate and account DHCP clients. See the HotSpot Manual for more information.

Quick Setup Guide

This example will show you how to setup DHCP-Server and DHCP-Client on RouterOS.

Setup of a DHCP-Server.

1.Create an IP address pool

/ip pool add name=dhcp-pool ranges=172.16.0.10-172.16.0.20

2.Add a DHCP network which will concern to the network 172.16.0.0/12 and will distribute a gateway with IP address 172.16.0.1 to DHCP clients:

/ip dhcp-server network add address=172.16.0.0/12 gateway=172.16.0.1

3.Finally, add a DHCP server:

/ip dhcp-server add interface=wlan1 address-pool=dhcp-pool

Setup of the DHCP-Client (which will get a lease from the DHCP server, configured above).

1.Add the DHCP client:

/ip dhcp-client add interface=wlan1 use-peer-dns=yes \ add-default-route=yes disabled=no

2.Check whether you have obtained a lease:

[admin@Server] ip dhcp-client> print detail Flags: X - disabled, I - invalid

0interface=wlan1 add-default-route=yes use-peer-dns=yes status=bound address=172.16.0.20/12 gateway=172.16.0.1 dhcp-server=192.168.0.1

primary-dns=159.148.147.194 expires-after=2d23:58:52 [admin@Server] ip dhcp-client>

Specifications

Packages required: dhcp

License required: Level1

Submenu level: /ip dhcp-client, /ip dhcp-server, /ip dhcp-relay

Standards and Technologies: DHCP

Description

The DHCP protocol gives and allocates IP addresses to IP clients. DHCP is basically insecure and should only be used in trusted networks. DHCP server always listens on UDP 67 port, DHCP client - on UDP