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Need help with VLSMing the following topology

Discussion in 'General Cisco Certifications' started by packet_sniffer, Jan 21, 2009.

  1. packet_sniffer

    packet_sniffer New Member

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    Hi.
    I need help with VLSMing the topology that is attached to the post.

    The point is that I have been assigned public subnet IP 192.1.1.0/24, and I have to VLSM it for all WAN connections and outside address range of 5 IPs. For LAN subnets I need to use use private IPs of my choice, for example:
    class A on ISP with class B subnet mask, and class B on Sydney and Auckland with class C subnet masks.

    I've just almost understood simple subnetting, and now this came up and Im really confused.

    Thanks
     

    Attached Files:

  2. HaDeS666

    HaDeS666 Bit Poster

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    There is no point of us doing your home work for you, as you will never understand.

    But here goes:


    1st WAN link
    192.168.1.0/30 (subnet address)
    192.168.1.1 (first interface address)
    192.168.1.2 (second interface address)
    192.168.1.3 (broadcast address)

    2nd WAN link
    192.168.1.4/30 (subnet address)
    192.168.1.5 (first interface address)
    192.168.1.6 (second interface address)
    192.168.1.7 (broadcast address)


    ISP:

    10.0.0.0/16

    Sydney:

    172.16.0.0/24

    Auckland:

    172.16.1.0/24

    I don't really know what you mean by " outside address range of 5 IPs "

    Try this to get to grips with VLSM:

    http://www.tcpipguide.com/free/t_IPVariableLengthSubnetMaskingVLSM.htm
     
    Certifications: A+ and CCNA
    WIP: MCSA then onto MCSE

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