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dhcp-to-dns: get domain from dhcp server's network definition

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Christian Hesse 2023-04-13 00:32:13 +02:00
parent ac5d84173f
commit ee94024dca
5 changed files with 29 additions and 15 deletions
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23
doc/dhcp-to-dns.md
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@ -34,12 +34,27 @@ On first run a disabled static dns record acting as marker (with comment
"`--- dhcp-to-dns above ---`") is added. Move this entry to define where new
entries are to be added.
The configuration goes to `global-config-overlay`, these are the parameters:
The configuration goes to dhcp server's network definition. The domain is
used to form the dns name:
/ip/dhcp-server/network/add address=10.0.0.0/24 domain=example.com;
A bound lease for mac address `00:11:22:33:44:55` with ip address
`10.0.0.50` would result in an A record `00-11-22-33-44-55.example.com`
pointing to the given ip address.
Additional options can be given from comment, to add an extra level in
dns name or define a different domain.
/ip/dhcp-server/network/add address=10.0.0.0/24 domain=example.com comment="domain=another-domain.com, name-extra=dhcp";
This example would result in name `00-11-22-33-44-55.dhcp.another-domain.com`
for the same lease.
If no domain is found in dhcp server's network definition a fallback from
`global-config-overlay` is used. This is the parameter:
* `Domain`: the domain used for dns records
* `HostNameInZone`: whether or not to add the dhcp/dns server's hostname
* `PrefixInZone`: whether or not to add prefix `dhcp`
* `ServerNameInZone`: whether or not to add DHCP server name
### Host name from DHCP lease comment