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    Join Date
    Dec 2006
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    Ubuntu 14.04 Trusty Tahr

    Understand bridged networking with KVM

    I am a KVM-newbee and have a question about KVM and bridged networking for Ubuntu 12.04.

    I am investigating how to setup a virtualized firewall, Sophos UTM 9 and has not fully understand how to configure the KVM-host bridged networking.

    The KVM-host has three phsyical NICS:

    • Internal - eth0
    • Wireless - eth1
    • External - eth2


    Internal network
    Network: 192.168.1.0/24
    GW: 192.168.1.1 (UTM9 NIC IP-adress)

    UTM9 is both DHCP-server and gateway for the Internal Network, has the static IP-adress 192.168.1.1. The KVM-host has a static IP-address on this network, 192.168.1.250

    Wireless network
    Network: 192.168.4.0/24
    GW: 192.168.4.1 (UTM9 NIC IP-adress)

    UTM9 is both DHCP-server and gateway for the Wireless Network, has the static IP-address 192.168.4.1
    The KVM-host shall not have IP-connectivity on this network.

    External network
    Network 147.13.10.0/25
    GW: 147.13.10.1 (ISP gateway)

    UTM9 has a static IP-adresses on External, 147.13.10.2.
    The KVM-host shall not have IP-connectivity on this network.

    My question is how I shall setup bridged networking on the KVM-host? Can anyone give me an example how to configure /etc/networking/interfaces with bridged networking on the KVM-host according to above?



    Cheers
    Last edited by Erik-NA; February 2nd, 2013 at 05:24 PM.

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