RE: Network Setup Opinion Needed

From: Otto Haliburton (ottohaliburton_at_comcast.net)
Date: 09/30/03

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    To: <redhat-list@redhat.com>
Date: Mon, 29 Sep 2003 18:14:40 -0500

    Remember that Ethernet is a collision based system i.e. the more collisions
    the less performance. Hence large networks are typically have low
    performance because of the greater number of collisions. So option 2 would
    give you better performance because it is broken up into smaller areas hence
    fewer collisions, also there are fewer route table updates. So while the
    second is more complicated it is actually a better setup. Token ring would
    be better for your option 1. That’s my 0.02 cents.

     

    -----Original Message-----
    From: redhat-list-admin@redhat.com [mailto:redhat-list-admin@redhat.com] On
    Behalf Of Enroth Björn
    Sent: Monday, September 29, 2003 5:47 PM
    To: redhat-list@redhat.com
    Subject: SV: Network Setup Opinion Needed

     

    Hi,

     

    Why complicate things when not needed? The only thing you can gain from
    separating the clients is less broadcast, and maybe some increased security
    between the groups of clients. The Linux box would also have more to do in
    your second option. My suggestion is that you go for option 1. Remember to
    NOT set any default gw at the internal interface. This could confuse the
    routing daemon.

     

    Regards

    /Bjorn

    -----Ursprungligt meddelande-----
    Från: Harish Sabnani [mailto:harish.sabnani@cyberhutoman.com]
    Skickat: den 29 september 2003 19:45
    Till: edward@tripled.iinet.net.au
    Kopia: redhat-list@redhat.com
    Ämne: Network Setup Opinion Needed

    Hi Ed,

    Thank you for taking interest in my queries,I need a suggestion from you on
    the way I should set up my network,I had posted this mssg on the mailing
    list but had no response,hence I am mailing this to you,your suggestion will
    be highly appreciated.

     

    Hi All,
    I have set up a Linux Box with NAT/MASQ, and Squid as an Internet server for
    my local LAN with one system on a trial basis and I see that the performance
    has been great.However I am apprehensive about the way the way traffice and
    loadbalancing will be hadled by Linux box as there will be 50 Machines
    banging in with requests,hence I have thought of two ways to connect,pls
    have alook below and pass your valuable comments. I have a 128 Kbps leased
    line coming thru a router.

    Option1
    50 Windows Cleints with IP Adressese 192.168.0.1-50 GW 192.168.0.100
    Linux Server Eth0 with Ip Adress 212.72.11.89 GW 212.72.11.201
    Linux server Eth1 with Ip Address 192.168.0.100 GW 192.168.0.100

    so I will use Ip NAT/MASQ techniques where all requests on Eth1 will be
    forwarded to Eth0.

    Option 2
    3 Sepearte Networks
    Network 1 Ip addresses 192.168.0.1-15
    Network 2 Ip addresses 192.168.1.1-15
    Network 3 Ipaddresses 192.168.2.1-20
    Linux Server Eth0 with Ipaddress 212.72.11.89 GW 212.72.11.201
    Linux Server Eth1 with Ipaddress 192.168.0.254 GW 212.72.11.89
                  Eth2 with Ipaddress 192.168.1.254 GW 212.72.11.89
                  Eth3 with Ipaddress 192.168.2.254 GW 212.72.11.89
    In this case I will have to NAT all requests from Eth1,Eth2,Eth3 to Eth0.

    Router Details
    Serial IP 212.72.11.202 Mask 255.255.255.252
    Network 212.72.11.88 Mask 255.255.255.248
    Gatway 212.72.11.201
    Host Ips 212.72.11.89
             212.72.11.90
             212.72.11.91
             212.72.11.92
             212.72.11.93
             212.72.11.94
             212.72.11.95
    I have abt 6 dedicated host Ips is there a better way I can utilise this,Pls
    suggest, I dont want to have a dedicated FTP or webserver.

    Thanks and regards

    Harish 

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