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AdGuardHome/internal/dhcpd
Eugene Burkov a832987f7c Pull request: 4698 Gateway IP in DHCP Lease
Closes #4698.

Squashed commit of the following:

commit 6be0caee58926f8cea1e10650fbde0c8d97d0dac
Author: Ildar Kamalov <ik@adguard.com>
Date:   Fri Jul 8 13:41:50 2022 +0300

    update translation

commit e0370656d05e8463d73ea73568cae81187c6b2e3
Author: Ildar Kamalov <ik@adguard.com>
Date:   Fri Jul 8 13:40:54 2022 +0300

    client: validate static lease ip

commit 7f4d00f9f3a54dc93ce5d5c45e9c21745f6e39d1
Merge: 2ee79626 77e5e27d
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Jul 8 13:20:15 2022 +0300

    Merge branch 'master' into 4698-lease-with-gateway

commit 2ee79626a1b0c7b113dbd22ba4ef6e85ea9913ec
Merge: 471b96b8 3505ce87
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Jul 7 19:34:33 2022 +0300

    Merge branch 'master' into 4698-lease-with-gateway

commit 471b96b81da8920c1e71b7110050154f912677d2
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Jul 7 16:07:23 2022 +0300

    dhcpd: imp docs

commit 67dd6c76f7d2df4712a57281e0f40f2ee1a1efa2
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Jul 7 15:48:47 2022 +0300

    dhcpd: restrict gateway ip for lease
2022-07-08 15:17:47 +03:00
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2021-06-16 16:48:46 +03:00
2021-08-12 17:33:53 +03:00
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2021-10-22 11:58:18 +03:00
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2021-08-12 17:33:53 +03:00

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