Catalyst VLAN issue

Discussion in 'Cisco' started by dakranon, Jul 13, 2007.

  1. dakranon

    dakranon

    Joined:
    Jul 13, 2007
    Messages:
    1
    Hi,

    I've configured vlans on a Catalyst 3550 switch as follows:

    "
    int vlan 2
    ip address 10.0.0.1 255.255.255.0

    int vlan 3
    no ip address

    int fa0/1
    switchport mode access
    switchport access vlan 2

    int fa0/2
    switchport mode access
    switchport access vlan 2

    int fa0/3
    switchport mode access
    switchport access vlan 3

    int fa0/4
    switchport mode access
    switchport access vlan 3
    "

    I then plug a device (call it D1) with IP address 10.0.0.101 into fa0/1 and a device (call it D2) with IP address 10.0.0.102 into fa0/4.

    Ok, now I can ping the switch's vlan 2 ip address (10.0.0.1) from D1, but not from D2.
    Also, I can't ping D2 from D1 or D2 from D1.

    Next I connect a cross over cable from fa0/2 to fa0/3, which connects vlan 2 to vlan 3.

    I can now ping D1 from D2, and D2 from D1, and I can still ping 10.0.0.1 from D1, but I can't ping it from D2.

    So my question is: why can't I ping that address from D2?
    Is there something else I need to set on the switch to allow me to do this?
     
    dakranon, Jul 13, 2007
    #1
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