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Network bridging describes the action taken by network equipment to allow two or more communication networks, or two or more network segments, to create an aggregate network. Bridging is distinct from routing which allows the networks to communicate independently as separate networks. A network ...

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Accessing shared folders on repeater routers [closed]

Hi everyone. I'm new to this repeater/bridge thing, sorry if I am asking a common thing. As it shown on my network diagram here, I both computers can access the internet without any problem. The ...
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2answers
82 views

Cisco Catalyst 3850 router VLAN bridge no routing

New to Cisco stuff so bear with me (only a little L2 Procurve experience). I have a development network connected to an Aruba/HPE managed switch feeding a trunk with tagged VLAN's to an internal ...
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24 views

Isolate 2 devices in specific VLAN connected to the switch from other devices in the same switch with the same VLAN

I need to isolate 2 devices in specific VLAN 11 which are connected to the switch from other devices which are connected to the same switch with the same VLAN 11. You can see network schema on ...
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5answers
162 views

What is a VLAN (really)?

My question is about the literal and precise meaning of the term "VLAN". According to IEEE 802.1Q-2014, a LAN is a single segment of a medium. A cable connecting a PC to a switch port is a single LAN. ...
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1answer
27 views

Discovering public ip from wifi signals, shodan, parent router NAT [closed]

MAC addresses innately do not change right? and you're able to scan for broadcasting APs where you'll be able to detect different nearby mac addresses of each AP.. Public IP addresses change, ...
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17 views

How to secure management wired network for public use (Mikrotik + UBNT + Zyxel) [duplicate]

In a network there is a router from Mikrotik, switches are ZyXEL GS1900-24HP and the access points are Unifi UAP AC-LR. I have configured three VLAN's: public, staff and management. All the access ...
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1answer
155 views

Bridging networks without NAT: how it's done?

I have quite limited networking experience, so probably i'm asking about very simple things. I'm reading about linux bridge interfaces, and documentation states that there is no NAT by default and ...
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2answers
237 views

How to make virtual devices on GNS3 be able to ping the physical host

I have had this problem already and figured out its reason. Basically the problem is that the virtual devices on GNS3 cannot ping the physical host and also the physical host cannot ping the virtual ...
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1answer
325 views

Cabling two access ports on the same switch from different VLANs

Theoretically would I be able to connect two switch ports together with a simple straight/cross cable on the same switch. If the two ports are in different VLANs (eg. 2 and 22) and ports are in ...
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1answer
49 views

Wifi ap bridge WLAN network with WAN network

Googling "WLAN Bridge" mostly gives results about WDS bridge (wifi device to wifi device communication) What i want to do is basically bridge the router's WLAN and WAN interface (disabling NAT, ...
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1answer
31 views

How to access to virtual interface with static IP thanks to VPN?

Question : Is it possible to use a VPN solution to access to a remote PC in the following context ? Context : Objective : We need to connect a specific software (that uses a particular port) to a ...
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1answer
203 views

Phone and PC network sharing one wifi bridge

We have a Cisco router from our T-mobile provider, two subnets on two ethernet ports: one subnet for PC data network, one subnet for IP phone network. The subnets have different IP addressing. As per ...
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3answers
393 views

Force VLAN traffic through specified interfaces

I have two VLANs, VLAN1 for "clients" and VLAN2 for (web)servers. Both VLANs have two ports in etherchannel (one Cisco switch). I would like to put transparent (WAF) device in bridge mode between the ...
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1answer
155 views

Cisco router under workgroup bridge AP

My question is about addressing a Cisco router interface so that I can use both bridging through an access point as workgroup-bridge and also connect to the access point to configure it. Apologies ...
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1answer
197 views

Can a network bridge be viewed as a two port switch?

I never worked with bridges because they were no longer used when I first got internet at home, and I have some troubles understanding what exactly was the role of the switches. From my search I ...
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2answers
61 views

Working of bridges not making sense

I am reading the book on Data Communications and Networking by Behrouz A. Forouzan Suppose a device A on LAN 1 wants to connect to the device B on LAN 2 . Initially the bridge table is empty . ...
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1answer
446 views

Bridge for collision domains

I have read that a bridge/switch can be used to increase the number of collision domains in the network, but somewhere I also read that a bridge reduces collision domains. Is it possible for bridge to ...
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1answer
46 views

Cisco ISO - Are all interfaces assigned to bridges automatically?

I'm currently looking at configuring a second bridge on a cisco switch, however it appears that all interfaces are 'automatically' in the first bridging interface because they are part of Vlan1, which ...
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2answers
711 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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3answers
446 views

Is there an “active” network tap (not just passive)? [closed]

Passive network taps seem to be pretty simple. What if I want an "active" network tap? Let's say I want to change some HTTP packets, for example add info etc. Another thing that would interest my ...
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1answer
100 views

How can I bridge multiple interfaces to a single one a Cisco ISR C891F but making each one able to communicate only to the destination interface?

As the question says: How can I bridge multiple interfaces to a single one on a Cisco ISR C891F, but making each one able to communicate only to the destination interface? Let's say I have ...
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1answer
165 views

How can I prevent VLAN bridging on a Cisco switch

A Cisco switch (IOS) on our network configured with VLAN 7 and VLAN 8 as access VLANs (7 being the native for the trunk on the switch) had the VLANs bridged by someone who connected a patch cable from ...
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2answers
59 views

What is EB (Ethernet Bridge)? [closed]

I'm new to centos and networks and I was reading documents about how to use direct commands on centos7 firewall-cmd using man 1 firewall-cmd I saw this line: The first argument of each option has ...
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1answer
328 views

Accessing Internet from a different VLAN. Cisco 200-26

I have just had a cisco 200-26 smart switch with 24 ports. I have set the IP of VLAN1 (also management Lan) to 192.168.1.254. All ports except port 10 and 11 are assigned to VLAN1. Furthermore, I have ...
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2answers
75 views

Need of routers and IP addresses

I dont know if my research is enough or not but I could not find answers on the net. My question is why not use bridges instead of routers. We know bridges can connect two different networks. Using ...
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1answer
274 views

Merging two networks

I am new to networking and I want to understand how to merge (bridge) two networks and what all things (parametres) change when the nerworks are merged. Can somebody explain more in an educational way?...
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1answer
451 views

Cannot bridge point-to-point between autonomous AP and lightweight AP

I'm doing some tests in a company, and I have some problems. My mission is to configure an autonomous AP Cisco AIRCAP-2602E, and do a Wi-Fi bridge point-to-point between a Cisco lightweight AP and ...
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1answer
797 views

Use iperf to split multiple tcp streams between 2 NIC on same client (similar to IxChariot)

I have 2 PCs connected to each other using two 1 Gbps ethernet link, to have an aggregate data bandwidth of 2 Gbps. In IxChariot, I can create multiple TCP pairs and split them into: PC1_LAN1 <-&...
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1answer
831 views

Bridge two QinQ interfaces on a juniper router

On a Juniper MX router I've got 2 interfaces that I need to bridge together. Interface A has QinQ configured: vlan-tags outer 0x8100.1 inner 0x8100.600 Interfaces B has QinQ configured vlan-tags ...
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1answer
223 views

Regarding Bridge domain and L2 vpn

I am trying to understand the usage of bridge group command.Please refer the following config(on switch ASR9k): l2vpn ! bridge group TEST1 bridge-domain BD1 interface Bundle-Ether1.500 ...
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1answer
111 views

Different between VLAN broadcast behavior on a Cisco switch and a Linux bridge

When will a packet be tagged/untagged with a VLAN tag in these cases: On a Cisco switch On a 8021q subinterface in Linux (for example, eth0.10) On VMWare ESXi (with VLAN ID in VMNetwork setting) ...
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1answer
483 views

What is WDS and how can it cause a broadcast storm?

Recently I was told that we leave WDS off ,whenever we can, where I work. It was explained to me that a broadcast storm is created when a routers' broadcast gets back to itself, perpetuates itself and ...
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2answers
165 views

Bind IP To Port

I have a Cisco 877 router, running IOS Version 12.4(24)T3, with 4 Ethernet ports and multiple external IP address attached to the internet connection. I usually just nat the external addresses to ...
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2answers
173 views

Join internal networks

we've expanded our business to a nearby building with its own network and i am trying to join the two so that the workstations can see each other, but they continue to use their own internet access. ...
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2answers
54 views

Can 802.11a connect or can bridge to 802.11n?

Can 802.11a connect or can bridge to 802.11n? I do search the internet but it doesn't gave me a clear idea. I also searched in this site, but I saw, b to n, or ac to n. I'm an amateur in this kind of ...
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1answer
4k views

What is the difference between “Client Mode” and “Independent Bridge” in an AP?

Considering the 5 modes of operation of wireless access points described on this page, there a among them: Mode 2 - Bridge. Most APs can also be configured as a Bridge. In such Configuration the ...
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1answer
15k views

Configurating VLAN access and trunk ports on RouterOS/Mikrotik [closed]

I have RouteBOARD RB951G-2HnD, RouterOS 6.34.2 and I am trying to achive a network configuration something like what is depict on the next picture. The picture is from Mikrotik Wiki http://wiki....
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1answer
980 views

Can bridging two networks in Windows Server 2012 lead to an external attack?

I have two LAN networks on my server. I tried to bridge them, but the server got attacked post bridging. Does bridging open additional ports on the existing connections, and can bridging alter the ...
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1answer
177 views

Network/Socket Connection Issue

Problem Socket Connection between 192.168.1.1(Server) and 192.168.1.12(Client) can NOT be established (See Fig. 1). Tests Test 1: "Ping" ping 192.168.1.2 -S 192.168.1.1 -> Success ping 192.168.1.12 ...
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2answers
522 views

Connect to wireless network on different subnet

I have a lift motor that has an app that allows me to move the lift up and down. The lift creates its on Wi-Fi network with a default gateway of 192.168.4.1 My existing network is 192.168.1.1, I have ...
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1answer
314 views

Port-selective transparent forwarding with routing?

I'm trying to sanity check my lack of understanding of a colleague's network planning exercise. It doesn't make sense to me, but maybe I'm missing something. My general networking knowledge isn't bad, ...
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2answers
95 views

Combining Two Networks With Hardware

My office has two internet connections and two routers and two networks. One network is used for the Internet connect and has great speeds. The second network runs our IP phones and is a backup ...
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4answers
110 views

What is the security purpose of a bridge?

Linux bridges operate at layer 2 and therefore can only switch packets between interfaces whose mac addresses are contained in a single bridge; a full router operates at layer 3, and thus allows ...
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2answers
360 views

WLAN Bridge connected over WLAN to the internet

I need to establish a WLAN Bridge over a distance of approximately 400m. I found this equipment: https://www.ligowave.com/products/apc-propeller-2 As I understand it needs to connect over LAN to the ...
3
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1answer
1k views

Why do my network adapters do not show IP addresses when bridged? [closed]

I've set up an Ubuntu 14.04 virtual machine with two network adapters. eth0 (bridged adapter) - 192.168.0.105 eth1 (NAT) - 10.0.3.15 I have performed ping commands to ensure everything is fine: ...
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2answers
3k views

Understanding Linux Bridging

I am trying to understand Linux bridging. Lets say I have a Linux bridge with two veth interfaces and a vNic. Bridge: br0 Interfaces: veth1, veth2, and eth1 Now, if I do brctl showmacs br0, it ...
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1answer
8k views

Difference between Linux Bridge and Open vSwitch

What are the most significant differences between how a Linux bridge and an Open vSwitch work?
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2answers
228 views

Cisco 1841, Bridge T1 WAN to hosts with public IPs?

We currently have a Samsung router given to us by Covad. It is configured like this: PPPoFR T1 WAN (samsung router) x.x.x.49/29(public address) gateway ...
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1answer
790 views

Secure connect & access across 2 separate LAN Subnets using PFSense/ Sophos?

Secure connect & access across 2 separate LAN Subnets using PFSense/ Sophos? Following is an older diagram of a 2+1 level Small Business/ Startup + Co-working space, with recent expansion & ...
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1answer
1k views

Which switch MAC addresses are used for the Bridge ID in STP?

Lets imagine that I have big LAN environment with many switches and many VLANs, for example, VLANs 5,15 and 50. I have PVST+ activated, and all of my switches have same (STP) priority. I connect a ...