Subnets on Same Interface



  • Hi,

    I am just setting up my system and would like some advice please.
    I have subnets 192.168.10.0/24, 192.168.20.0/24, 192..168.30.0/24, 192.168.40.0/24, 192.168.50.0/24 for internal use and also 192.168.100.0/24 for guests.
    What is the best way to set this up using just 1 Lan Interface.
    I think it is possible to avoid vlans for the internal subnets by making these just visible subnets in pfSense, I found some old documentation about hacking the config.xml to achieve this.
    I need all the internal subnets to be able to use and see each other just basically moving like equipment into different subnets such as servers and printers on 20, workstations and laptops on 10 and my development of sensors and mcus  on 40. Home streaming media on 50.

    Currently I am talking to the pfSense server via OPT1 on my current network of 192.168.0.0/24

    If I setup vlans I need to start setting up switches etc which could start to get costly on my limited budget, so I believe.

    So the question is what should I do and how should I do it, please?
    I cannot do a lot of manual reading as I am partially sighted.

    Thank you for any help.
    Kind regards,
    jB  8)


  • LAYER 8 Netgate

    On one broadcast domain use one IP subnet. If you want multiple subnets use VLANs. It's that simple.



  • @britesc:

    If I setup vlans I need to start setting up switches etc which could start to get costly on my limited budget, so I believe.

    Managed switches are really not that expensive these days. You can pick up an 8-port managed switch for less than you'd think.


  • LAYER 8 Global Moderator

    You want to run multiple layer 3 networks over the same layer 2?  That is BAD BAD idea… Derelict is correct, use vlans if you only have 1 physical interface.  And muswellhillbilly points out switches that support vlans are very cheap.. Like $40...



  • Thank you to all, for the consensus reply. VLAN's it is then.
    Kind regards,

    jB  8)


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