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Mac address port forwarding problem

  • 17-09-2015 1:16pm
    #1
    scomp1
    Registered Users, Registered Users 2 Posts: 15 ✭


    Hi
    I am trying to port forward a number of ports to a device in my household but instead of my broadband recognizing the devices mac address, instead it is taking the mac address from the router that it is connected to and taking the ip from the device. I am with eircom and the modem is the f2000. I am using a router which has ddwrt installed on it. I hope someone can help me.


Comments

  • #2
    bonzodog2
    Registered Users, Registered Users 2 Posts: 6,285 ✭✭✭bonzodog2


    https://www.dd-wrt.com/wiki/index.php/Port_Forwarding


  • #3
    mass_debater
    Closed Accounts Posts: 3,072 ✭✭✭mass_debater


    scomp1 wrote: »
    Hi
    I am trying to port forward a number of ports to a device in my household but instead of my broadband recognizing the devices mac address, instead it is taking the mac address from the router that it is connected to and taking the ip from the device. I am with eircom and the modem is the f2000. I am using a router which has ddwrt installed on it. I hope someone can help me.

    Mac addresses will not pass a router. Mac address is layer 2, IP is layer 3, you should port forward by IP address.


  • #4
    scomp1
    Registered Users, Registered Users 2 Posts: 15 ✭scomp1


    mass_debater wrote: »
    Mac addresses will not pass a router. Mac address is layer 2, IP is layer 3, you should port forward by IP address.

    Is there any way to change the f2000 modem from port forwarding through mac addresses to ips or is there any other way around during this


  • #5
    ED E
    Registered Users, Registered Users 2 Posts: 36,170 ✭✭✭✭ED E


    scomp1 wrote: »
    Is there any way to change the f2000 modem from port forwarding through mac addresses to ips or is there any other way around during this

    Its not fwding MAC. It cant. Its mapping a fwd to a device by its mac, so that if the IP of the "server" on your network changes, the forward doesnt break. It saves you setting up static IPs/DHCP reservations.


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