help!!!! Cisco Catalyst 3560 unable to ping VLAN default IP

[minishep]

Hi there peoples, hope you can help, i have just recieved a new batch of cisco switches running software 12.2. The problem is when i create a VLAN and interface it i cannot ping the Default IP address for the vlan. Yet on all of the older switches it works fine. arghhhh what am i doing wrong.....

 

[VinceWhirlwind]

Have you trunked that VLAN back to your network?

ie, added the VLAN to your uplink port and then ensured the interface on the other end of that uplink also carries that VLAN.

 

[minishep]

I don't have the cisco plugged in to the network yet, it is just on my bench hooked up to the laptop. Previously we were able to set the laptop to the same range as the switch (laptop 10.205.65.200 switch 10.205.65.16) and ping the address of the VLAN eg 10.205.72.1 IP routing is enabled.

Cheers

 

[VinceWhirlwind]

So long as you have the switch address on the VLAN interface for VLAN X, and you have VLAN X configured as an Access VLAN on the switchport your laptop is patched to, they should communicate.

Watch out for whatever filtering you might have enabled on the laptop, eg Windows firewall, etc...

 

[vipergg]

Make sure your L2 vlan is created . Do a show vlan and make sure your vlans are there.

 

[minishep]

when i do the "show VLAN" command they are all listed but on the far right it says the protocol is down? I have discovered since my first post that you can ping the vlan from the cisco ios but not from a pc (have tried different pc's)but when you tie the VLAN to a port and plug anything in (it doesnt even need to be in the same range)you can ping the DG address of the VLAN........
The plot thickens..... I am thinking it must be somethnig weird with the new version of IOS because i'm positive the older 3560's i was using didn't do it.

Cheers

Minishep

 

[vipergg]

Nope nothing new , you create the L2 vlan , create the corresponding L3 SVI for that vlan and plug in a pc to a port that is assigned to that vlan and the SVI should go to a up/up status and you should be able to ping it if your pc is in that same subnet space and your default gateway of the pc is the SVI address. You need at least one active device in that vlan otherwise the SVI will not be up and you cannot ping it .

 

[minishep]

Thanks for all of your responses, much appreciated. Now for more cisco practice............

Thanks again.