01-22-2009 12:49 PM - edited 03-06-2019 03:35 AM
what is vlan?
if we have three vlans and pc1 in vlan1 and pc2 in vlan2
can pc1 see the pc2 or not
if pc1 can see pc2 what is the problem in the vlans
01-22-2009 12:53 PM
A vlan is a layer broadcast domain. So two devices in the same vlan can see each other without needing the presence of a router.
If you have 2 vlans and a device in each vlan then you need to route between the 2 vlans and for this you either need a router or a L3 switch.
Jon
01-22-2009 01:16 PM
Just to add a bit to Jon's post, you can have more than one subnet in a vlan.
Take vlan 10.
interface vlan 10
ip address 10.10.0.0 255.255.254.0
The subnets for vlan 10 are:
10.10.0.0/24
10.10.1.0/24
A device with address 10.10.0.5 can reach 10.10.1.5 without the need of a router because they are in the same Layer 2 broadcast domain - in other words, in the same vlan.
HTH
01-22-2009 03:35 PM
A device with address 10.10.0.5 can reach 10.10.1.5
+if i want stop device see etch other what can do to stop this+
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