Re: DHCP with Static Addresses

From: H.S. (hs.samix_at_gmail.com)
Date: 11/28/05

  • Next message: Edward J. Shornock: "Re: Mutt & 2 accounts" 
    To: debian-user@lists.debian.org
Date:  Sun, 27 Nov 2005 21:53:38 -0500

    Jim McCloskey wrote:
    > |> o printing to one of the machines running CUPS ... again, I must
    > |> specify the addr of the print server machine
    >
    > This was why I wanted to assign a fixed address to my desktop machine at home---
    > it has a printer on the parallel port and it serves as printserver for all of
    > the other machines that use the home network (laptops mostly).
    >
    > But this very simple solution works here. I just have in /etc/network/interfaces:
    >
    > iface eth0 inet static
    > address 192.168.1.100
    > network 192.168.1.0
    > netmask 255.255.255.0
    > broadcast 192.168.1.255
    > gateway 192.168.1.1
    >
    > and the DHCP server in the Linksys router (a Wireless-B) is happy to always assign
    > the 192.168.1.100 address to the machine in question.

    No, DHCP is doing nothing in this. You have given your machine a fixed
    IP address in your LAN and it works perfectly.

    Here is what I did to give a machine (laptop) a fixed DHCP address:

    In the machine which acts as a router and DHCP server, I have this para
    in /etc/dhcpd.conf for my laptop:
    #added by HS,08May2005, to assign fixed address to the Dell laptop.
    #info from http://www.siliconvalleyccie.com/linux-hn/dchp.htm
    host red {
    hardware ethernet XY:AB:CD:EF:GH:IJ;
    fixed-address 192.168.0.120;
    }

    Where XY:AB:CD:EF:GH:IJ is the mac address of the interface card of the
    laptop and 192.168.0.120 is the IP address I want DHCP server to assign
    to the laptop and "red" is the hostname given to the laptop. The
    hostname is in combination with this line in the dhcpd.conf file:
    option domain-name "myhome.domain";

    which makes red.myhome.domain the complete domain name of the laptop.

    IIRC, I used this method so that the laptop may be configured to always
    look for an address from a DHCP server whether it was at my school or at
    home or anywhere else where a DHCP server was running. Having a fixed IP
    address was not working in that scenario then. Now, I guess, there are
    other more modern methods to make a laptop perfectly mobile in Linux.

    Let me know if you have any more questions.
    ->HS 

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