Invisible dhcp server possible?



  • Im not sure how to describe what im looking for or how to go about setting it up.

    Im in a network where I want to make my personal network invisible to the other network but allow either static only or dhcp apon gateway request.

    For example there is about 5 users on the main network. If they look for dhcp leases, they will get from the server (pfsense) however if I mac address deny, it causes them problems.

    I have about 3 computers I want to be in a subnetwork ran from pfsense however maybe im just forgetting how static works,

    But I would prefer if I could static assign them (so no dhcp is needed) or make it so somehow if the main computers look for leases, they dont get anything from the pfsense server.

    Can I use static ip reservations without enabling the dhcp server, or how would I go about making it invisible to everyone.

    Currently even with denying leases, the main computers will fail to get normal leases and lose network until the pfsense is shutdown (thus no longer denying) and they can get proper leases on the main network.


  • Banned

    No, there are no invisible DHCP servers. Plus, sticking multiple DHCP servers on the same network is an absolutely horrible idea - as you have noticed, you are breaking things with your rogue DHCP server!


  • Rebel Alliance Global Moderator

    huh??  Multiple dhcp servers bad bad bad idea..  When you say your network invisible network, then you would put your devices behind pfsense and have pfsense do typical nat.  But sounds like to me your trying to run different address space over the same physical network?



  • @sherkas:

    Im not sure how to describe what im looking for or how to go about setting it up.

    Im in a network where I want to make my personal network invisible to the other network but allow either static only or dhcp apon gateway request….

    So what you want is a firewall box (like pfsense) with a WAN interface onto this network, and a LAN behind the firewall which is your "personal invisible network"  The pfsense box will do NAT, so anything on the main network (the WAN)  will only see the natted traffic.

    If you want devices on the WAN  to see your computers, then you will have to add NATs on the pfsense box, or tell the main WAN router to route an ip network to your pfsense box.

    I'm guessing that you're in a dorm with lots of crappy windows laptops, and want to hide your stuff ?

    Does this meet your need?