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Questions tagged [bridging]

For questions about network bridging or bridge network devices, where it is a computer networking device that creates a single aggregate network from multiple communication networks or network segments. This function is called network bridging.

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Bridges, hubs, switches and repeaters in subnetting

I'm learning to subnet and I'm constantly doing exercises on paper about this topic. I'm trying to breakdown a network into smaller subnets, given the number of hosts for each one. For now, I only ...
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Bridged Mode Networking vs. Network Bridge

I have just learned about bridged mode networking in VMWare and I wonder how is it different from the "bridge" used in physical world networking? According to what I've found myself so far, I guess ...
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VirtualBox “Bridged” network analog in GNS3?

There is "Bridged adapter" network solution in VirtualBox when your virtual machine gets IP-address from your real physical router (like 192.168.1.62). Is there a similar thing in GNS3 (on Linux ...
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How does Kismet find WIRED devices when scanning Wi-Fi? [closed]

In an effort to better secure my Wi-Fi network by finding its weaknesses and mitigating them, I have employed the use of Kismet, a well known Wi-Fi security scanning tool. When I use Kismet to scan ...
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1answer
106 views

What's the difference between dot1dTpFdbPort and dot1qTpFdbPort, and what are the octets before the last 6 (

So ... I kinda struggle to understand the difference between dot1dTpFdbPort Either the value '0', or the port number of the port on which a frame having a source address equal to the value of the ...
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2answers
43 views

What is the bridging decision when getting ARP request?

Setup: Assume I have 3 VMs. VM1 VM2 and VM3. VM2 has two interfaces, say eth1 and eth3. eth1 is connected to VM1 physically and eth3 to VM3. I create a bridge on VM2 using brctl with eth1 and eth3. ...
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0answers
60 views

802.1Q-2014 I-Tag and MAC addresses

I am reading IEEE 802.1Q-2014 for interest. This incorporates I-Tags, which define backbone service instances. In a few places, the standard implies or states that the I-Tag includes the C-DA and C-SA....
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1answer
467 views

Routing and Bridging on a Layer 2 or Layer 3 device

The thing that intrigues me is, say I have a router and I configure it’s interface as a Layer 2 and have 2 Vlans on the same router. So if I want to transfer the data from one Vlan(say VLAN-10) to ...
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5answers
784 views

How can Layer 2 frames be encapsulated?

How Can Layer 2 be encapsulated (in order to add some information) and sent over the internet. On the receiver side the added information will be used, and then the packet will be decapsulated to get ...
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2answers
1k views

How transparent bridging Wi-Fi with Ethernet works?

The way I understand (two-port) transparent bridging is that the bridge simply forwards packets to another segment on the network. But since the MAC address of the ethernet interface is different to ...
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4answers
2k views

Ubiquiti UniFi Wireless bridging over two floors

I need a setup like this: +----------+ +----+ | Router | --- | AP | | (DHCP ?) | | | +----------+ +----+ | | wireless | +-----...
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1answer
89 views

Etherchannel configuration!

I´m trying to test this etherchannel configuration but did´t work properly. The goal is: I want to entablish a L2 communication channel between A and B, but i neet to put on the middle 2 equipments ...
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3answers
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why does bridge terminate vlan header

I'm referring to the following article, where it mentions "The MAC layer header can be maintained if the router is bridging the network layer protocol. However, regular bridging still terminates the ...
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3answers
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Same subnet, 3 different VLANs - How?

A customer has a network: 10.0.0.0/24. The gateway 10.0.0.1/24 is represented by an SVI for VLAN 10 on a core switch. Downstream there is an ACE Load balancer, which has a BVI. This BVI's IP address ...