That highly depends on what you're trying to simulate. From the picture, it looks like the 1800 in the middle is simulating an ISP/PSTN connection. If so, you could use one of the switches plugged into each of the other 1800s to simulate two offices that would then connect to each other over the simulated WAN. So, from a switchport on the 3560 (configured as a trunk) plug into a FastEthernet port on one 1800. From a switchport on the 3750 (configured as a trunk) plug into a FastEthernet port on the other 1800.
From router to router, or switch to switch, you'll need a cross over cable.
From router to switch, you'll need a straight through cable.
However, the 3560 and 3750 should support auto MDI, if auto is enabled on port (which by default, it normally is). I.e. They should work with either a cross over or straight through cable to any other device.
I don't know whether an 1800 also supports auto MDI.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.