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PPoE setup with 4 Public IP addresses

  • 08-01-2020 1:16pm
    #1
    rolion
    Closed Accounts Posts: 3,362 ✭✭✭


    Hello,

    A quick one here, please.

    It's given a PPoE setup with 4 IPs from ISP.
    As we know, usable are only 2 (the middle two).
    How do I setup a network behind the ADSL modem for two routers using the middle range, please !?

    Thanks.


Comments

  • #2
    This is it
    Registered Users, Registered Users 2 Posts: 5,872 ✭✭✭This is it


    Youll need more than a /30.

    Network
    Usable/Gateway
    Usable
    Broadcast

    The provider router will need to have the /30 configured with one of the two usable IPs used as the gateway and the second usable assigned to the downstream router. If you get a /29 you can do the above and use another usable IP on the second downstream router set up with the same gateway.


  • #3
    rolion
    Closed Accounts Posts: 3,362 ✭✭✭rolion


    That's what I as thinking , so that's a 6 hosts and 29 mask !?

    n/u WAN ID
    ADSL DG
    PPoE router
    Router1
    Router2
    n/u WAN Bcast

    I hate when I'm right ! :)


  • #4
    This is it
    Registered Users, Registered Users 2 Posts: 5,872 ✭✭✭This is it


    Just 5, you won't need two GW.

    Network
    Provider router GW
    Router 1
    Router 2
    Free
    Free
    Free
    Broadcast

    I'm not sure about various providers but I know one assigns a static IP to the connection and then routes the /xx to that so there's no need for the extra GW you have in your list, it will automatically route via that single static IP.


  • #5
    rolion
    Closed Accounts Posts: 3,362 ✭✭✭rolion


    On the phone with Eir tech support.
    Thanks


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