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[dakranon]

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?