Configuring DHCP services (revision 2.1)

Introduction

This page describes how Alexis Huxley installed and configured his DHCP server.

Procedure

Install the packages required for the DNS server by running:
```
apt -y install isc-dhcp-server
```
Edit /etc/default/isc-dhcp-server and set:
```
INTERFACESv4="eth0"
```

Reduce /etc/dhcp/dhcpd.conf to something like:

ddns-update-style none;
authoritative;
log-facility local7;

#  List known DHCP clients here
#host halusky-eth0          { hardware ethernet dc:0e:a1:56:db:2e; fixed-address halusky.pasta.net;  }

subnet 192.168.1.0 netmask 255.255.255.0 {
    option domain-name "pasta.net";
    option domain-name-servers 192.168.1.36;
    option ntp-servers time.pasta.net;
    option routers 192.168.1.51;

    #  1-5 are reserved

    #  6-50 is for statically configured hosts

    #  51-100 are for statically configured network equipment

    #  101-150 is for known hosts (known because they're declared in 'host' stanzas above)
    pool {
        range 192.168.1.101 192.168.1.150;
        allow known-clients;
        deny unknown-clients;
    }

    #  151-200 is for unknown clients (unknown because they're not declared in 'host' stanzas above)
    pool {
        range 192.168.1.151 192.168.1.200;
        allow unknown-clients;
        deny known-clients;
    }

    #  201-254 are reserved for future use
}

Start dhcpd with:
```
systemctl start isc-dhcp-server
```

Run:

wget -qO - http://standards-oui.ieee.org/oui/oui.txt > /usr/local/etc/oui.txt

(Note that this URL is taken from BTS#963978..

If there is an old dhcpd server on the network then stop it.
Test as follows:
1. Run:
```
tail -f /var/log/messages | grep dhcpd
```
2. Connect a dynamic IP host to the network.
3. Run:
```
dhcp-lease-list
```
  Verify the manufacturer is specified.

Introduction

Procedure

See also