Adding another DNS server for a vlan as a vm, but for physical machines

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Forums › LAN (ethernet/Wifi/routers/Bluetooth) › Adding another DNS server for a vlan as a vm, but for physical machines

davidcole

6029 posts

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#205449 13-Nov-2016 22:12

With hyper v, coukd I create a guest vm with a DNS server (maybe openwrt or something) that could be a DNS server for a 2nd vlan (for a guest network), so I can run it in a different subnet?

How would the vm be set up to have a lan and wan side? The nics in question would be the same ones used by other guests, so I'd rather not force those nics to be used only by that one vm.

Any other way I Vcoukd get a second dhcp server on my network for this guest network.?

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davidcole

6029 posts

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#1676272 23-Nov-2016 17:32

So to answer my own question yes.

I made a linux ubuntu minimal install VM in hyper-v and gave it two network cards. Both are attached to the physical card in the server.

The first, ie the wan side, is left alone. The 2nd, ie the LAN side, has VLAN5 on it (done in the hyper-v settings)

I then followed a bunch of guides, to add the two NICs to the VM, WAN side (eth0) on DHCP, LAN side (eth1) with static 10.1.1.1

I then added dhcp on the 10.1.1.0 network on the eth1 nic, with a DHCP range of 10.1.1.50 - 10.1.1.100. I added name servers of 192.168.10.1 (my main gateway).

Then I added iptables rules to allow routing between eth1 to eth0.

Lastly in unifi controller I made the 10.1.1.1 network on vlan 5.

Finally after a bit of toing and froing, I managed to get both an internal vm and a guest on the guest ssid to pick up dhcp.

I can now look at putting in restrictions on my network - which I'd done with the unifi already, but now my gateway can control it, and I can add quotas etc.

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