Re: DHCP with Static Addresses

From: Joseph H. Fry (fryjos_at_udmercy.edu)
Date: 11/29/05

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    To: debian-user@lists.debian.org
Date: Tue, 29 Nov 2005 12:45:14 -0500

    On Thursday 24 November 2005 1:29 pm, Kenneth Jacker wrote:
    > [ sarge ]
    >
    > Looking in interfaces(5), it doesn't appear that I can include an
    > "address" line (where I could specify a desired address) within
    > /etc/network/interfaces for a 'dhcp'-configured interface.
    >
    > However, what I'd like to do somehow is make my RFC1819 addresses
    > remain the same at home, but still use DHCP for DNS, etc. Depending
    > on what I boot when, the addresses all change thus messing up firewall
    > settings and other "stuff".
    >
    > Maybe I must just go with "iface ... static" instead of "iface ... dhcp"?
    >
    > What would people suggest for this?
    >
    > Thanks,
    > --
    > Prof Kenneth H Jacker khj@cs.appstate.edu
    > Computer Science Dept www.cs.appstate.edu/~khj
    > Appalachian State Univ
    > Boone, NC 28608 USA

    I solved the problem by configuring a second IP to the interface statically
    in /etc/network/interfaces:

    # The primary network interface
    auto eth0
    iface eth0 inet dhcp

    # Server IP
    auto eth0:1
    iface eth0:1 inet static
    address 192.168.11.10
    netmask 255.255.255.0

    There are a couple advantages to this.... my favorite is that I can portmap to
    the static address in my router and only bind those services to the static IP
    while services I use internally (such as samba) are hosted on the dynamic IP.

    I hope this helped!

    Joe 

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