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CPL with fibre setup

  • 26-07-2019 1:47pm
    #1
    pickarooney
    Moderators, Arts Moderators Posts: 35,925 Mod ✭✭✭✭


    My current setup is as follows but I need to expand it, presumably with the addition of a couple of extra PLC plugs. I just need to know if I'm thinking along the right lines or not.

    The fibre modem is close to the entrance and can't be moved. It's plugged into a PLC(1).

    In the living room, the router is plugged into another PCL(2) and the phone and first PC (ethernet) are plugged into that. All works fine.

    I now want to add the TV box, which connects to the router, but the TV setup is in the far corner of the room and dragging an ethernet cable from the router to the TV box is not feasible.

    So I'm thinking of adding another PLC(3) beside the TV, moving the router and connecting it to this PLC(3), connecting the TV box and phone to the router and connecting the PC directly to the PLC(2).

    Will this allow me to use the PC, box and phone? I'm not certain if and how the PC will communicate with the router in this scenario.


Comments

  • #2
    ED E
    Registered Users, Registered Users 2 Posts: 36,170 ✭✭✭✭ED E


    Are you using the French for PLCs?(Homeplugs, Powerline adapters)

    Doing this is theoretically wrong as your LAN side devices are multi homed (1 is the public internet) but assuming VLAN tags are being used its safe enough as DHCP requests should never reach the OLT/Agg.
    NB: This advice may not hold outside Ireland, you don't want your STB on the public internet.

    EDIT:

    No, I did the mental diagrams incorrectly. Your STB wouldn't have LAN side access at all. Won't work. You'd have to buy two more adapters and run concurrent parallel networks which would cause both to be real slow. Cable it.


  • #3
    pickarooney
    Moderators, Arts Moderators Posts: 35,925 Mod ✭✭✭✭pickarooney


    ED E wrote: »
    Are you using the French for PLCs?(Homeplugs, Powerline adapters)

    Doing this is theoretically wrong as your LAN side devices are multi homed (1 is the public internet) but assuming VLAN tags are being used its safe enough as DHCP requests should never reach the OLT/Agg.
    NB: This advice may not hold outside Ireland, you don't want your STB on the public internet.

    EDIT:

    No, I did the mental diagrams incorrectly. Your STB wouldn't have LAN side access at all. Won't work. You'd have to buy two more adapters and run concurrent parallel networks which would cause both to be real slow. Cable it.

    Oops, correct guess on the CPL/PLC mix-up, changed it now!

    I tested the setup partially, putting PLC2 in the socket into which I've plugged the router, and into the router I've plugged the TV box and phone. I put a WiFi dongle in the PC in the living room.

    The TV and phone work and the PC gets a not particularly impressive 30 Mbps. Cabling would involve about 25 metres of cable and going around French windows for the main PC for a gain of max 70 Mbps. For the second PC there's just no workable solution with cables and the WiFi signal is atrocious in that room. If I do get another pair of PLCs I'm still not sure if they'll get a signal from the router.


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