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Suppose our organization has been assigned a class /24 subnet Then we subnetted that and used as our new subnet mask, so the network ranges are,, .64 -.95 and so on. Would a PC in - be able to ping a PC in a different subnetwork eg: - without using a router?

And can this be done using VLANs?

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No and No. Moving packets between IP networks (which you created by subnetting) is done by a router.

A netmask and ipaddress determines what other addresses can be contacted directly on an interface. If you want all your machines to communicate without going through a router then use a netmask that covers the whole IP address range and skip subnetting.

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VLANs partition switches, i.e. limiting the ports on which broadcast traffic is flooded or visible. You still need a router or something that can route "in between" VLANs. It's possible some "Layer 2 router" devices may have this feature. It would be a feature specific to your router. – LawrenceC Aug 18 '12 at 17:17

you can even ping two hosts in a different VLAN with out a router provided both hosts should share same network ID.

This can be achieved by playing with NATIVE VLAN.

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