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Installation and Configuration

1. Install required Packages

sudo apt update -yy
sudo apt upgrade -yy
sudo apt install dhcpd isc-dhcp-server netplan.io

2. Configure DHCP Server

2.1 Configure DHCPd

Edit Configuration File /etc/dhcp/dhcpd.conf

# DNS Search Domain and Nameservers
# When e. g. a DHCP Client gets a IP, a example Search Domain would be <DeviceName>.searchdomain
option domain-name "pxe.example.local";
option domain-name-servers 172.16.1.254;

# Lease Times (how long the DHCP Client will hold the assigned IP Address)
default-lease-time 600;
max-lease-time 7200;

ddns-update-style none;

# Subnet Ranges Configuration
# With Netmask 255.255.255.0 (/24), the Subnet is 172.16.128.0 - 172.16.128.255
subnet 172.16.128.0 netmask 255.255.255.0 {
        # DHCP Client Range
        range 172.16.128.100 172.16.128.199;

        # DHCP Options
        option routers 172.16.128.254; # Router / Default Gateway
        option domain-name-servers 172.16.128.254; # Nameservers / DNS Servers
}

2.2 Configure isc-dhcp-server

Edit Configuration File /etc/default/isc-dhcp-server

# Path to Configuration File from Step 2.1
DHCPD4_CONF=/etc/dhcp/dhcpd.conf

# Space-delimited List of Interfaces where the DHCP Server should listen on
# Example for multible Interfaces: "eth0 eth1 wifi1"
INTERFACESv4="eth0"

2.3 Configure Netplan

Netplan is used to configure the local Interfaces on the Device which hosts the DHCP/iPXE Server

Edit Configuration File /etc/netplan/network.yaml
network:
  version: 2
  renderer: networkd
  ethernets:
    eth0:
      addresses:
        - 172.16.128.254/24
      nameservers:
        addresses:
          - 172.16.128.254

  wifis:
    wlan0:
      dhcp4: true
      access-points:
        "your-wifi":
          password: "your-wifi-password"

With this File, the Interface eth0 gets a static IP 172.16.128.254 and the Wifi interface wlan0 is set to dhcp with the specified Wifi your-wifi and Password your-wifi-password

Update Permissions for /etc/netplan/network.yaml
sudo chmod 600 /etc/netplan/network.yaml

Apply Configuration
sudo netplan apply

 

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