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Thread: IPTABLES - Allow Internal HOST with Public IP through Firewall

  1. #1
    redmondmj@gmail.com
    Guest

    IPTABLES - Allow Internal HOST with Public IP through Firewall

    Hello:

    I am new to IPTABLES. I have setup and Ubuntu 8.04 Server running
    ebox. It is running DHCP (192.168.1.0-250), NAT, DNS, Squid
    Transparent Proxy. All of the firewall rules were configured using
    ebox's firewall module.

    Basic setup:
    Eth0 - external interface 12.32.12.2 (GW 12.32.12.1) - Internet

    Eth1 - internal Interface 192.168.1.254

    I have a host on the internal network that I need to assign a public
    IP to allow unrestricted access to the internet. 12.32.12.3...

    I have been told that ebox can not configure this for me and I have no
    idea what I'm doing in IPTABLES. From what I have read it looks like I
    should be able to setup something in PREROUTING and POSTROUTING to
    allow me to do this?

    Any help would be greatly appreciated!!!

    Thanks,

  2. #2
    Ansgar -59cobalt- Wiechers
    Guest

    Re: IPTABLES - Allow Internal HOST with Public IP through Firewall

    redmondmj@gmail.com wrote:
    > I am new to IPTABLES. I have setup and Ubuntu 8.04 Server running
    > ebox. It is running DHCP (192.168.1.0-250), NAT, DNS, Squid
    > Transparent Proxy. All of the firewall rules were configured using
    > ebox's firewall module.
    >
    > Basic setup:
    > Eth0 - external interface 12.32.12.2 (GW 12.32.12.1) - Internet
    >
    > Eth1 - internal Interface 192.168.1.254
    >
    > I have a host on the internal network that I need to assign a public
    > IP to allow unrestricted access to the internet. 12.32.12.3...


    You don't need a public IP address for unrestricted access to the
    Internet. Who told you such nonsense?

    Please describe what exactly you're trying to achieve, and also post
    your current ruleset.

    cu
    59cobalt
    --
    "If a software developer ever believes a rootkit is a necessary part of
    their architecture they should go back and re-architect their solution."
    --Mark Russinovich

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