Contents
How do different VLANs communicate?
Two separate VLANs must communicate through a layer-3 device, like a router. Devices on a VLAN communicate with each other using layer-2. Layer-3 must be used to communicate between separate layer-2 domains.
How do devices on different networks communicate?
Using the Internet, computers connect and communicate with one another, primarily using the TCP/IP (Transmission Control Protocol / Internet Protocol). Think of TCP/IP as a book of rules, a step-by-step guide that each computer uses to know how to talk to another computer.
Which devices is used to communicate between different subnet?
Routers use IP address to locate and forward data between devices on different networks. Subnetworks, or subnets, are created by taking a single private address range and dividing it into multiple separate networks using a subnet mask.
How do you communicate with two VLANs?
The simplest way to enable routing between the two VLANs to simply connect an additional port from each VLAN into a Router. The Router doesn’t know that it has two connections to the same switch — nor does it need to. The Router operates like normal when routing packets between two networks.
Can a router be added to the routing table?
When you plug in a network cable or join a WiFi network, windows automatically adds some routes to the routing table. It is possible to exert some influence on this using the GUI tools. For example, one can set both through Control Panel / Network Connections / Interface Properties / Internet Protocol Version 4 / Properties / Advanced:
How to route traffic through different network interfaces?
In part of the route table, you can see where the destination network is (with a subnet mask), and which interface to talk to it on. You can specify more “specific” routes to take, and the most specific rules will prevail. For example, if you had a home network at 192.168.0.0/24, your default route table knows to use Ethernet.
How to use multiple network interfaces ( NICs )?
NIC 1 Connected to Corporate Network and NIC 2 Connected to Local Network IP Address: 192.168.50.8 IP Address: 10.0.3.7 Subnet Mask: 255.255.0.0 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.1.1 Default Gateway: 0.0.0.0 (or blank)
How are two computers communicating on a remote network?
For example, to communicate between two computers on remote networks it may be necessary to pass through several routers. At a low-level, one packet must be sent between the sending computer and the first router, then another packet from the first router to the next, and so forth until the final packet finally reaches the destination computer.