AdGuardHome/internal/dhcpd
Eugene Burkov bdcf345155 Pull request: 4745 Fix DHCP hostnames
Merge in DNS/adguard-home from 4745-fix-dhcp-hostnames to master

Closes #4745.

Squashed commit of the following:

commit fe03c8eda6c8ee35a10eb5f5a8e4d4d0c7373246
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 23 18:16:16 2022 +0300

    dhcpd: imp code, naming

commit 7a7129268917d99ba16781b7f2e9bfb7ae84ff3e
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 23 18:10:12 2022 +0300

    dhcpd: add tests

commit bb14a4a62df1eed6492d30f622c3e22da9a6f4be
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 23 14:58:29 2022 +0300

    dhcpd: imp code, docs

commit 2ada39f994cb9dbb2208d47a588eb72056bb5306
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 23 14:44:35 2022 +0300

    all: log changes

commit cbd3ed254865921be09376097dac9f5926b2349a
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 23 14:40:54 2022 +0300

    dhcpd: imp option 81

commit 64dabb52560f5edc08f17aadaa43172a5d74463d
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 23 14:10:15 2022 +0300

    dhcpd: fix empty hostname in static lease

commit 0df5d10d0d94863b9bbab28129bcc3436fb71222
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 23 13:34:31 2022 +0300

    dhcpd: report dupl hostnames of static lease
2022-08-23 18:22:49 +03:00
..
bitset.go Pull request: dhcpd: imp static lease validation 2021-03-18 17:07:13 +03:00
bitset_test.go Pull request: dhcpd: imp static lease validation 2021-03-18 17:07:13 +03:00
broadcast_bsd.go Pull request: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
broadcast_bsd_test.go Pull request: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
broadcast_others.go Pull request: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
broadcast_others_test.go Pull request: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
conn_unix.go Pull request: 4836-revert-dhcp-upd 2022-08-15 18:31:32 +03:00
conn_unix_test.go Pull request: 4836-revert-dhcp-upd 2022-08-15 18:31:32 +03:00
db.go Pull request: dhcpd: add purge, imp code 2021-06-16 16:48:46 +03:00
dhcpd.go Pull request: 4358 fix stats 2022-08-04 19:05:28 +03:00
dhcpd_test.go Pull request: home: mv local domain name to dhcp setts 2022-01-25 19:47:02 +03:00
helpers.go Pull request: 3225 bsd dhcp 2021-08-12 17:33:53 +03:00
http.go Pull request: 4698 Gateway IP in DHCP Lease 2022-07-08 15:17:47 +03:00
http_test.go Pull request: use testutil 2021-10-22 11:58:18 +03:00
iprange.go Pull request: filtering: fix rw to subdomain 2021-12-27 19:40:39 +03:00
iprange_test.go Pull request: use testutil 2021-10-22 11:58:18 +03:00
options_unix.go Pull request: all: upd go, tools, deps 2021-12-22 16:34:51 +03:00
options_unix_test.go Pull request: use testutil 2021-10-22 11:58:18 +03:00
os_windows.go Pull request: all: imp build tags 2021-06-15 19:42:41 +03:00
README.md Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
routeradv.go Pull request: all: mv some utilities to netutil 2021-08-09 16:03:37 +03:00
routeradv_test.go Pull request: dhcpd: do not assume mac addrs of 6 bytes 2021-03-31 12:36:57 +03:00
server.go Pull request: all: upd go, tools, deps 2021-12-22 16:34:51 +03:00
v4.go Pull request: 4745 Fix DHCP hostnames 2022-08-23 18:22:49 +03:00
v4_test.go Pull request: 4745 Fix DHCP hostnames 2022-08-23 18:22:49 +03:00
v6.go Pull request: all: opt log levels more 2021-12-28 17:25:43 +03:00
v6_test.go Pull request: dhcpd: add purge, imp code 2021-06-16 16:48:46 +03:00
v46.go Pull request: 3225 bsd dhcp 2021-08-12 17:33:53 +03:00
v46_windows.go Pull request: dhcpd: add purge, imp code 2021-06-16 16:48:46 +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