badguardhome/internal/dhcpd
Eugene Burkov 2313eda123 Pull request: 2302 static ip
Merge in DNS/adguard-home from 2302-static-ip to master

Closes #2302.

Squashed commit of the following:

commit e62b7b033861f1c55f0d06811ca005b3934ddc5b
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Dec 7 19:38:15 2020 +0300

    all: format changelog

commit 4127aa7630674ddcfe84f712e6c7c8d06b1cab9a
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Dec 7 19:24:53 2020 +0300

    all: fix changelog typo

commit f8a432056d3682facae0cdec99d7d80a5c2bd9b5
Merge: b809a866e e4383189a
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Dec 7 19:22:27 2020 +0300

    Merge branch 'master' into 2302-static-ip

commit b809a866e49147354f9c6952b2f958b6b56ad873
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Dec 7 19:20:05 2020 +0300

    all: log changes

commit 248c35ba411af731d6eae755a901cdbc77980628
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Dec 7 18:57:15 2020 +0300

    sysutil: use bufio.Scanner

commit 0dc19dd5c232fbe9552a2b0d846e048274d73a74
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Dec 7 17:26:18 2020 +0300

    sysutil: fix linux tests

commit 91202d6763595cff187040516dd1db10a20762b7
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Dec 7 17:15:29 2020 +0300

    sysutil: fix linux files

commit 40fbdbb95876322ebaeef1cbdaa8e3299b83ca7e
Merge: d9a43ffb6 9b963fc77
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Dec 7 16:52:35 2020 +0300

    Merge branch 'master' into 2302-static-ip

commit d9a43ffb68a2ddbbcf185b69fc75aed139cd6919
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Dec 7 16:49:22 2020 +0300

    sysutil: add main test

commit bfef89186035ab0423d23246d46511584c26534c
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Dec 7 16:21:59 2020 +0300

    sysutil: improve code quality

commit a5f57a373f736971fdeb0c03371da7c8138b3a82
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Dec 4 14:14:08 2020 +0300

    all: move system functionality from dhcpd package to sysutil.

commit 020b51864f85a39ca80e2b4e06faeb47cf318e11
Merge: 967e111a6 ab8defdb0
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Wed Dec 2 14:53:43 2020 +0300

    Merge branch 'master' into 2302-static-ip

commit 967e111a663c18b5f4a87f3ae38d076f3ab6c200
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Wed Dec 2 13:52:17 2020 +0300

    all: improve code quality
2020-12-07 19:48:24 +03:00
..
nclient4 Pull request: all: fix lint and naming issues vol. 2 2020-12-07 15:38:05 +03:00
checkother_windows.go Pull request: all: fix lint and naming issues vol. 2 2020-12-07 15:38:05 +03:00
checkother.go Pull request: all: fix lint and naming issues vol. 2 2020-12-07 15:38:05 +03:00
db.go Pull request: dhcpd: fix interface ipv6 check 2020-11-25 14:26:26 +03:00
dhcpd_test.go Pull request: 2273 clean tests output 2020-11-16 15:52:05 +03:00
dhcpd.go Pull request: 2302 static ip 2020-12-07 19:48:24 +03:00
dhcphttp_test.go Pull request: return 501 when we don't support features 2020-11-16 19:01:12 +03:00
dhcphttp.go Pull request: 2302 static ip 2020-12-07 19:48:24 +03:00
helpers.go Pull request: * dhcpd: send secondary dns as well 2020-11-09 19:27:04 +03:00
os_windows.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
README.md Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
routeradv_test.go Pull request: all: fix lint and naming issues vol. 2 2020-12-07 15:38:05 +03:00
routeradv.go Pull request: all: fix lint and naming issues vol. 2 2020-12-07 15:38:05 +03:00
server.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
v4_test.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
v4.go Pull request: fix zero-length ip addresses list bug 2020-12-02 14:42:59 +03:00
v6_test.go Pull request: dhcpd: wait for interfaces' ip addresses to appear 2020-11-27 14:39:43 +03:00
v6.go Pull request: all: fix lint and naming issues vol. 2 2020-12-07 15:38:05 +03:00
v46_test.go Pull request: dhcpd: wait for interfaces' ip addresses to appear 2020-11-27 14:39:43 +03:00
v46_windows.go Pull request: all: fix lint and naming issues vol. 2 2020-12-07 15:38:05 +03:00
v46.go Pull request: dhcpd: wait for interfaces' ip addresses to appear 2020-11-27 14:39:43 +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