1. New to Christmas lighting? Get started with the AusChristmasLighting 101 Manual:

Configuring a 2nd Network Card for your ECG multicast traffic

Discussion in 'EthConGateway by Joshua 1 Systems' started by neilric99, Oct 30, 2010.

  1. neilric99

    neilric99 Full Time Elf

    May 20, 2010
    Likes Received:
    Irvine, the OC, CA
    Find Me On:
    Heres some setup steps that worked for me when setting up my windows 7 system to use a seperate network card for the EthConGateway traffic.

    Issue: Madrix sACN has limited setup to allow network traffic to be directed to an network interface, and only allows Multicast configuration. Due to the high network utilisation this caused a slowdown on my default network.

    resolution: Create a Static route on your windows network routing table to send the multicast traffic to a 2nd Network card.

    1. route print to get the interface

    C:\Windows\system32>route print
    Interface List
    14...00 1e 2a b2 3f df ......Realtek RTL8169/8110 Family PCI Gigabit Ethernet NIC (NDIS 6.20)
    11...00 21 85 36 ba 91 ......Realtek RTL8168C(P)/8111C(P) Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)
    1...........................Software Loopback Interface 1
    12...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
    13...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface

    I identified 14 as my 2nd Nic on

    To create a route for the subnet (sACN Multicasts on 239.255.x.x)

    subnet netmask gateway
    route -p ADD MASK METRIC 1 IF 14

    note -p for persistent to keep in routing table after reboot

    I have my 2nd NIC connected to its own switch which also has the DR4 and DR8 plugged in to it.

    So here are the results of my changes to my routing table

    route print

    IPv4 Route Table
    Active Routes:
    Network Destination Netmask Gateway Interface Metric 266 On-link 266 On-link 266 On-link 266 On-link 306 On-link 306 On-link 306 On-link 266 On-link 266 On-link 266 On-link 1 On-link 306 On-link 266 On-link 266
  2. j1sys

    j1sys There are no rules, and those are the rules. Community Project Designer

    May 19, 2010
    Likes Received:
    Knoxville TN USA
    I had sent Neil a head's up based on linux routing knowledge and the hope that it would translate to the windows environment.

    Only one addition I would add - YMMV, IMHO, Not Safe For Children Under ....

    This solution could work great for you, but then it also could mess up some other software/hardware configuration you are using.

    So proceed with caution but it should not cause any permanent harm.

    It is also possible that refinements to this technique would work that would narrow the net starting address and netmask down to a block of 256 universes (or more or less) and then you could route block #1 to one interface and block #2 to another.

    All of this is only needed if you are working with Madrix or MagicQ or some other software which does not allow control of multicast destinations. Our Vixen plugin and the LSP driver (which is a derivative) do not need this. They have interface control at the universe level.


Share This Page