On 4/28/2022 6:20 PM, Will Dennis wrote:
Hi all,
I currently have dnsmasq set up and working well for the LAN that the dnsmasq
server is on (for our purposes, say 192.168.0.0/24.) Config is like this
currently:
domain-needed
bogus-priv
strict-order
no-hosts
dhcp-authoritative
dhcp-leasefile=/var/lib/misc/dnsmasq.leases
domain=mycompany.com
dhcp-range=192.168.0.20,192.168.0.59,1h
dhcp-option=option:router,192.168.0.1
Now, I have now set up a router (layer-3 switch) that has interfaces to
multiple other networks off of it, all having a /28 network mask. It has been
set to be a DHCP relay (“ip helper”) pointing DHCP requests from these new
networks to the dnsmasq server. I cannot seem to find a “howto” on how to
configure dnsmasq to serve multiple dhcp pools/associated options so it can be
the single DHCP/DNS server for these multiple new networks. In my reading of
the man pages, I *think* I’d have to do something like this in my config to
enable this:
domain-needed
bogus-priv
strict-order
no-hosts
dhcp-authoritative
dhcp-leasefile=/var/lib/misc/dnsmasq.leases
domain=nec-labs.com
dhcp-range=192.168.0.20,192.168.0.59,1h
dhcp-option=option:router,192.168.0.1
dhcp-range=set:vlan10,192.168.1.1,192.168.1.13,255.255.255.240,1h
dhcp-option=tag:vlan10,option:router,192.168.1.14
[…]
Am I correct in this? And, I don’t need to tag the original pool/options, do I?
A fiew things:
- Do you realy need the router lines (the default in Dnsmasq are
reasonables)?
- The tags has nothing to do with VLAN tagging, they are internal to
Dnsmasq.
To answer your questions:
- Yes you are correct
- Given the sample above I would say no.
HTH.
--
John Doe
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