GNS3 interface problem

damien2008

Hi,

When using GNS3 and VPCS I have 2 PCs connected though a generic Ethernet switch.
VPCS1 can successfully ping VPCS2 – everything OK - see 1st pic

When using a 3700 router issued with the no ip routing command to act as a layer 2 switch I cannot ping between the 2 VPCS PCs
I have put a NM-16ESW slot in R3 – see 2^nd pic
The show ip interface brief command from R3 lists f 1/1 and f 1/2 as line status UP but protocol DOWN. – see 3^rd pic
This is not expected on a switch interface, I have tried issueing a no shutdown command under the interfaces but still cant get them in an UP and UP status.
Anyone experienced this ?

Just to be clear I am talking about the f 1/1 and f 1/2 R3 interfaces and not the f 0/0 and f 0/1 R3 interfaces which are administratively shut down.

gns3.JPG

slot.JPG

last pic.JPG

OfWolfAndMan

Do your show command in VPCS. Do you have the right UDP ports configured on the host?