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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2answers
58 views

Switch with VLAN: How to map between VLANs networks

Assume the following network layout +--------+ ----------------------------------------| Switch |----------------- | ------------------------+-----...
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3answers
2k 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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2answers
48 views

How Access points differentiate stations?

I'm doing a ping from a station to another connected on the same access point. Given the fact that they are both on Wi-fi interface, how can access point know where to forward a packet?
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1answer
146 views

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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1answer
372 views

Alternatives to 802.11* wireless bridge?

Every now and then the question arises for me to link two Ethernet segments over some kind of outdoor wireless connection. It is usually over comparatively short distances (at some places maybe some ...
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1answer
218 views

why use a bridge on two networks without default gateway

I am in the process of understanding a bit deeper the functionality of bridges however i am a bit confused on the matter. I still dont understand why would you pick a bridge over a router when you ...
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1answer
20 views

Multiple Bridges in a single device acting as media adapters

First, the back story. We're doing an addition on a building that is about to disrupt an existing old OM1 fiber run. We are using three pairs from this run: 1 going into the building under renovation, ...
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1answer
127 views

How to connect two routers to the same network via an F-connector? [closed]

To clarify the situation, my ISP gave me a Cisco EPC3928S router which has F-connector input like shown in the picture below. On the second floor they set an additional coax cable for the television. ...
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0answers
873 views

Connecting GNS3 Topology to the Internet

I'm trying to connect my small topology to the internet through the Cloud device, but I'm not able to connect to even my own desktop's IP from the virtual router I have. I have Windows Defender rules ...
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3answers
137 views

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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2answers
163 views

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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1answer
717 views

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
455 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
168 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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4answers
5k views

Ubiquiti UniFi Wireless bridging over two floors

I need a setup like this: +----------+ +----+ | Router | --- | AP | | (DHCP ?) | | | +----------+ +----+ | | wireless | +-----...
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1answer
826 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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0answers
86 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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3answers
99 views

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
3k views

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 ...
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5answers
1k 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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1answer
108 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 ...