1) The default gateway that you define will depend on what address you configure for the switch in its management interface. The switch will communicate with other networks by going through the layer 3 switch. It may help if we are clear that the layer 2 switch makes forwarding decisions within each VLAN (subnet) based on the MAC address of the destination. The layer 2 switch can not communicate directly with different networks but requires the services of a layer 3 device.
2) In a layer 2 switch you can not use different network IPs to communicate. see the explanation in (1).
3) In a layer 2 switch separate VLANs are fine. The layer 2 switch understands VLAN and will forward traffic within a VLAN. But the layer 2 switch can not forward between VLANs. To forward between VLANs you need a layer 3 device. From the layer 2 switch you would probably need a trunk to connect to the layer 3 device. The layer 3 device will know what subnet is associated with each VLAN but the layer 2 switch does not know about different subnets.
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.