Files
AdGuardHome/internal/dhcpd
Eugene Burkov 53209bc42c Pull request: 4337 increase msg size
Merge in DNS/adguard-home from 4337-dhcp-msg-len to master

Updates #4337.

Squashed commit of the following:

commit 55e53c1fadd4ccb2a8b94117afff82e9a5d2734b
Merge: f37070ea da1ae338
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Sep 7 14:14:21 2022 +0300

    Merge branch 'master' into 4337-dhcp-msg-len

commit f37070ea0f3a7ff8efcbbafd36001f78d9b082b5
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Sep 7 13:15:25 2022 +0300

    dhcpd: imp ether pkt building

commit fa43a0bcc24d4ca5e9193899dbba8495f3de5df9
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 6 18:55:07 2022 +0300

    dhcpd: incr msg size
2022-09-07 14:34:30 +03:00
..
2021-06-16 16:48:46 +03:00
2022-08-04 19:05:28 +03:00
2021-08-12 17:33:53 +03:00
2021-10-22 11:58:18 +03:00
2021-10-22 11:58:18 +03:00
2022-09-05 17:01:33 +03:00
2022-08-31 18:57:02 +03:00
2022-08-30 20:39:34 +03:00
2022-09-05 17:01:33 +03:00
2022-09-07 14:34:30 +03:00
2021-12-28 17:25:43 +03:00
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