Cannot ping Specific IP

[jim.christou]

Hello everyone,

Here is my topology

(1)Router Cisco 2651XM ---> (2)Core Switch WS-C3560-24PS ---> (3.1, 3.2...)Several WS-C3560-24PS Switches

I have a server connected on Core Switch (2) ,a computer on Switch (3.1)  and a SIP phone on the same switch (3.1) among other.

From the computer I can ping to all the switches, server and Phone.

From the Server I can ping to all switches and the Computer, but not the Phone.

I think for some reason every device can ping any device on the entire network except the SIP Phone which can be pinged only from computers in the same Switch.

Can anyone Help on that?

Thank you.

[Jon Marshall]

Are the PC, server and phone in the same vlan.

If not what vlans are they in and where is the routing for the vlans done ?

Jon

[jim.christou]

There is only one vlan and all are in the same one. 

I forgot to mention that I am not an expert on cisco setup.

so any suggestions are more than acceptable.

Thanks,

Jim

[Jon Marshall]

Jim

I'm not familiar with SIP phones so you may want to move this post to the VOIP forums.

If they are all in the same vlan the only thing that occurs at the moment is to check the subnet mask setting on all the devices and make sure they are the same.

Jon