Switch Router vlans l2 l3 help

Discussion in 'Cisco' started by Anis, May 4, 2007.

  1. Anis

    Anis Guest

    Hi i have Switch he is layer2 and have Router Layer3
    when i make on switch 2 vlans with difrent subnets and then they can not
    see, i know i need to make something on router only what maybe can help me
    something like logical interface

    interface fastethernet 0/0.100
    ip address
    description for vlan 100

    and i ge this when i try to setup ip address on logical interface
    % Configuring IP routing on a LAN subinterface is only allowed if that
    subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q,
    or ISL vLAN.

    and interface fastethernet 0/0
    ip address
    desscription for vlan 1 default

    pls help how to make that 2 vlans can see ....
    Anis, May 4, 2007
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  2. Anis

    Trendkill Guest

    Is the switch a layer 3 switch? Is the router a separate device? If
    so, you need to trunk the VLANs out to the router and assign the IPs
    there and ensure routing is turned on. If this is a layer 3 switch,
    then you need to put the fast ethernets in vlans, create the vlans
    (interface VLAN1), give them IP addresses, and turn up routing.
    Trendkill, May 4, 2007
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