DCHP Domains for VLANs not resolving

Waaaghnl

Hi guys,

I'm struggeling with DHCP Domain Names with VLANs. i wan't to use a different domain for every VLAN but it's not working for me (setup below). Every client on every subnet gets the HOSTNAME.domain.nl but my goal is to have my clients ending with hostname.srv.domain.nl or hostname.man.domain.nl based on the VLAN and subnet where it's living. I have tryed to add every "dns server (10.10.vlan.1)" in the dns list but without succes. All clients register to hostname.domain.nl. What do i miss?

Greetings

Setup:
DNS: DNS Resolver.

System / General Setup
Domain: domain.nl

Services / DHCP Server / LAN
Domain name: domain.nl
Subnet: 10.20.0.0/24

Services / DHCP Server / VLAN20_SERVERS
Domain name: srv.domain.nl
Subnet: 10.10.20.0/24

Services / DHCP Server / VLAN10_MANAGEMENT
Domain name: man.domain.nl
Subnet: 10.10.10.0/24

Ping Results

C:\Users\WaaaghNL>ping servers.domain.nl

Pinging servers.domain.nl [10.10.10.4] with 32 bytes of data:
Reply from 10.10.10.4: bytes=32 time=1ms TTL=63
Reply from 10.10.10.4: bytes=32 time=1ms TTL=63
Reply from 10.10.10.4: bytes=32 time=1ms TTL=63
Reply from 10.10.10.4: bytes=32 time=4ms TTL=63

C:\Users\WaaaghNL>ping servers.man.vhhq.nl
Ping request could not find host servers.man.vhhq.nl. Please check the name and try again.

Ping statistics for 10.10.10.4:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 4ms, Average = 1ms

PS: servers.domain.nl is the server room switch

johnpoz

You can not have client register with unbound or dnsmasq using different names you would have to create these host records by hand

Waaaghnl

So what is the function of "DCHP Domain name" for than?

My idrac module shows on vlan10 (management)
Common Settings
Register DRAC on DNS: CHECK
DNS DRAC Name: idrac-kenny
Auto Config Domain Name: CHECK
DNS Domain Name: man.domain.nl

And when i place it on vlan20 (servers)
Common Settings
Register DRAC on DNS: CHECK
DNS DRAC Name: idrac-eric
Auto Config Domain Name: CHECK
DNS Domain Name: srv.domain.nl

johnpoz

You can hand out whatever domain name you want via dhcp.. Doesn't mean the lease is going to register than in unbound from your dhcp server.

Its only going to register the parent domain, the domain you setup in pfsense.

Waaaghnl

Ok i get it. But why is the domain name option for? It’s not in the dhcp docs of pfsense

johnpoz

Again - you can hand out the domain for the client.. whatever you want.. Doesn't mean client will use it, etc. depends on the client.

But registering the dhcp leases into unbound only uses the pfsense domain. If you want to do something like what your talking about with multiple domains.. Use bind and have the client register themselves into you specific domains.

Off the top my head I do not believe unbound allows for dns registration of clients because its not really meant as an authoritative NS to be honest.