AdGuardHome/internal/dhcpd/README.md

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# DHCP server
Contents:
* [Test setup with Virtual Box](#vbox)
<a id="vbox"></a>
## Test setup with Virtual Box
To set up a test environment for DHCP server you need:
* Linux host machine
* Virtual Box
* Virtual machine (guest OS doesn't matter)
### Configure client
1. Install Virtual Box and run the following command to create a Host-Only network:
$ VBoxManage hostonlyif create
You can check its status by `ip a` command.
You can also set up Host-Only network using Virtual Box menu:
File -> Host Network Manager...
2. Create your virtual machine and set up its network:
VM Settings -> Network -> Host-only Adapter
3. Start your VM, install an OS. Configure your network interface to use DHCP and the OS should ask for a IP address from our DHCP server.
4. To see the current IP address on client OS you can use `ip a` command on Linux or `ipconfig` on Windows.
5. To force the client OS to request an IP from DHCP server again, you can use `dhclient` on Linux or `ipconfig /release` on Windows.
### Configure server
1. Edit server configuration file 'AdGuardHome.yaml', for example:
dhcp:
enabled: true
interface_name: vboxnet0
dhcpv4:
gateway_ip: 192.168.56.1
subnet_mask: 255.255.255.0
range_start: 192.168.56.2
range_end: 192.168.56.2
lease_duration: 86400
icmp_timeout_msec: 1000
options: []
dhcpv6:
range_start: 2001::1
lease_duration: 86400
ra_slaac_only: false
ra_allow_slaac: false
2. Start the server
./AdGuardHome
There should be a message in log which shows that DHCP server is ready:
[info] DHCP: listening on 0.0.0.0:67