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Friday, April 11, 2025

Project #33 - Moving the DHCP and DNS over to PiHole

This is one project that has stuck in my craw for a number of years.  I am now in a situation where I am about to change out my network to be in two pieces.  I have enough computers to think about a centralized DHCP/DNS server for the network.  I have used PiHole in the past but now I want to make that the default for all of the routers in my network.  The rub is, I have all of these vlans that need attention when I am giving out IP addresses.  This will be an effort to consolidate the IP gathering and DNS entries into one location that is easier to control.  Some specifics of what I want to do are:

  • setup my Netgear switches to force certain IP ranges to certain vlans
  • use PiHole to issue DHCP IP addresses tied to their MAC addresses
  • if the MAC address is unknown, push it to a guest network
  • include both the FLINT and FLINT2 routers in the mix
  • modify my FLINT2 setup to have one guest network vlan that is passthrough