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Simon Zolin 990f531f54 + DHCP: add ra_slaac_only, ra_allow_slaac config settings 
Close # 2076

Squashed commit of the following:

commit 7a938fc6ffa0adc1e705f59778d7e7442b83d4b9
Merge: 3db2605e 6222d17d
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Thu Sep 24 16:34:23 2020 +0300

    Merge remote-tracking branch 'origin/master' into 2076-dhcp-ra-slaac

commit 3db2605efda79e8d361fb46c32bb9ec753de0e02
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Thu Sep 24 16:21:36 2020 +0300

    minor

commit de31c6aeebd78dce54ca54fbff010f3dd50ce974
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Thu Sep 24 12:23:09 2020 +0300

    don't initialize DHCPv6 server if we must force the clients to use SLAAC

commit 7c4239899c85880641dc5b4826ae34386bc5ee94
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Tue Sep 22 19:34:27 2020 +0300

    minor

commit 2b57688ce4c31d45d2236bd397e0b3041dac68c1
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Mon Sep 21 19:50:11 2020 +0300

    + DHCP: add ra_slaac_only, ra_allow_slaac config settings
2020-09-24 18:33:11 +03:00

1.8 KiB
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DHCP server

Contents:

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