ADSL thourgh hardware router to a linux box router

From: H. S. (g_reate_xcalibur_at_yahoo.com)
Date: 12/27/04

  • Next message: Allen McIntosh: "Re: trace routing question" 
    Date: Sun, 26 Dec 2004 19:44:59 -0500

    Hi,

    Currently I have an ADSL connection whose CAT5 cable goes to my Linux
    box running Debian and acting as a router. The CAT5 cable from the
    second NIC of this computer routers goes to a switch to which my home
    LAN computers are connected. The linux router is running iptables in
    which internal interface INTIF is eth0 (which connects to the switch)
    and external interface EXTIF is ppp0. The script does not depend on my
    IP which I get from my ISP (new one for every connection).

    I am considering experimenting by connecting the ADSL's CAT5 cable to
    the WAN port of a hardware router (USR 8054) and connecting the
    USR8054's one output (LAN) to the NIC of the linux router. Basically, I
    am considering inserting the USR8054 router between the ADSL and the
    linux router.

    In this new scenario, will my current iptables work? Or, will I need to
    make any changes? My router table has this:
    > /sbin/route -n
    Kernel IP routing table
    Destination Gateway Genmask Flags Metric Ref Use Iface
    w.y.x.z 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
    192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
    192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
    0.0.0.0 w.y.x.z 0.0.0.0 UG 0 0 0 ppp0

    where "w.x.y.z" is the IP I get from my ISP using PPPoE. As you can see,
    my internal network is 192.168.0.abc. And eth1, the NIC currently
    connected to the ADSL modem, is on the network 192.168.1.abc.

    Thanks,
    ->HS

  • Next message: Allen McIntosh: "Re: trace routing question"

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