Questions tagged [bridge]

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 bridge is a network device that connects more than one network segment. In the OSI model bridging acts in the first two layers, below the network layer.

Filter by
Sorted by
Tagged with
3
votes
1answer
781 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 ...
2
votes
2answers
259 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 ...
2
votes
2answers
232 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. ...
1
vote
2answers
101 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 ...
2
votes
1answer
8k 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 AP ...
1
vote
1answer
31k 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....
1
vote
1answer
1k 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 ...
1
vote
1answer
564 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 ...
0
votes
2answers
932 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 ...
1
vote
1answer
516 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, ...
1
vote
2answers
177 views

Combining Two Networks With Hardware [closed]

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 ...
0
votes
4answers
626 views

What is the security purpose of a bridge? [closed]

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 ...
0
votes
2answers
495 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 ...
2
votes
1answer
3k 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: ...
2
votes
2answers
6k 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 ...
5
votes
1answer
10k views

Difference between Linux Bridge and Open vSwitch [closed]

What are the most significant differences between how a Linux bridge and an Open vSwitch work?
2
votes
2answers
299 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 ...
0
votes
1answer
1k 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 & ...
4
votes
1answer
4k views

Cisco ASA and BVI interfaces

I'm in the middle of equipment migration and the setup is somewhat similar to Mike's (Configure Cisco ASA in Transparent mode: Layer2 DMZ w/ Vlan translation) but with a difference that I need the ...
8
votes
3answers
3k views

Advice for network & device configuration using Comcast Modem?

Summary My ultimate goal is to run a VPN through my Cisco Router, which to me means getting the Comcast Gateway out of the way. To this end, I would like to place my Cisco Router (and/or Switch) ...
-1
votes
3answers
71 views

link several powerline networks using wireless? [closed]

|---------| |---------| |---------| |---------| | | | | | | | | | PLCnet1 | <-WIFI-> | PLCnet2 | <-WIFI-> | ...
2
votes
1answer
2k views

Reach to LAN device from a different subnet

I have my network configured this way: The ISP router giving internet access (192.168.1.1/24) through wifi (SSID wlan01). Connected to this wifi I have a Nanostation2 (192.168.0.20/24) in bridge ...
1
vote
1answer
121 views

wifi bridge mode [closed]

I've a typical situation: server1 - switch1 - link-bridge (AP1) <----> link-bridge (AP2) AP1 and AP2 are 2 dlink-dap1360 (wireless N) with wpa2 so, if I connect my laptop to AP2 via cable I ...
1
vote
1answer
562 views

Extending Optimum WiFi range [closed]

How would one go about extending an optimum wifi connection? I would assume a bridge would be better than a repeater so the network wouldn't suffer from reduced bandwidth, however I have learned I ...
1
vote
0answers
61 views

Bridge mode: will traffic go to the router or not? [closed]

I have a timecapsule connecting to my ISP router in bridge mode. My question is: If i'm connected to the timecapsule, and exchanging data with the router, will the traffic go to the router to come ...
5
votes
5answers
2k views

Why do we need repeaters since there are bridges (or switches)?

I was reading the HowStuffWorks article on ethernet. From the article, I understand that bridges are just like repeaters, but with the added benefit of not cluttering up other collision domains. So I ...
1
vote
1answer
658 views

How to bridge two networks with Ubiquiti hardware?

I want to connect two networks using a wireless bridge. My networks are in different subnets and each have their own router (and DHCP server, and independent internet connection). I tried a basic ...
1
vote
2answers
397 views

How can I access switch port protected by 802.1X thats in a seperate collision domain seperated by a T1 bridge

I want to be able to remotely access an Ethernet switch-port protected by 802.1x. The switch I want to access is at a distant site, but I have a T1 circuit that goes from that site to my office. I ...
5
votes
2answers
322 views

Bridging LAN networks privately in office environment

I've begun looking into network bridging, must most of it is witchcraft for me so far. I currently have the following setup: I use PC 1 as my development station and PC 2 as a deployment/test station....
3
votes
2answers
517 views

PAgP over transparent wireless point-to-point links

We have 2 buildings which are interconnected by 2 wireless P2P links. One is used as main connection, the second one is for redundancy and backup. So far, we have these 2 buildings in flat L2 network ...
1
vote
1answer
138 views

Difference between coupling with bridge and router

(warning: this is an old exam question, for which I don't have a solution): Assume 2 local networks LAN1 and LAN2, with Endsystems A,C in LAN1 and B,D in LAN2. The networks are coupled with a bridge. ...
0
votes
1answer
183 views

SNAT packages to the wrong destination while bridging [closed]

I have a Raspberry Pi physically between my switch and my client. The switch uses 802.1x authentication with an radius server. If I setup my Raspberry in transparent bridging mode everything works ...
1
vote
1answer
1k views

setup VXLAN forwarding to multiple destination on Linux [closed]

I can't setup forwarding of all zero (unknown, I assume)/multicast ethernet frames to multiple unicast IPs (virtual tunnel endpoints), although it seems that it should be supported (also mentioned ...
5
votes
2answers
3k views

Difference between Switch and Linux Bridge

In my network, I need some manageable switches. So, somebody advised me to configure the Lab Linux servers as bridges using brctl. Those new bridges should act like switches. What should be the ...
1
vote
2answers
125 views

How do I create hard wired communications between multiple lans with individual wan connecitons [closed]

First off, I assume this is a simple question, but I do not have a background in networking. Nonetheless, I am responsible for setup and maintenance. I would appreciate any help. I have the ...
1
vote
1answer
302 views

Internetworking devices

Are hub and repeaters the same? And the same applies for switched and bridges? Since I am finding hub/repeaters and switch/bridge in some books while hubs/switch in others. Also in which layers do ...
3
votes
1answer
5k views

Wireless options for connecting two buildings together (300ft)

Situation: Previous company setup each building on their own ISP/Modem. They then used cisco routers to create a VPN connection over the internet from the looks of it to the other building. This from ...
1
vote
4answers
256 views

How, if possible, extend WiFi network over Internet?

sorry if my terminology is way off, I'm not well versed with networking. Can any combination of hardware and software make following scenario a reality: In location A there is a WiFi network called, ...
5
votes
1answer
1k views

802.1Q VLAN over Deliberant APC wireless bridge - am I doing something wrong?

I've previously run a Cisco based network (Catalyst switches, ASA and PIX firewalls) which segmented a medium sized business network into 8 VLANs with little issue. I've recently started in a new ...
1
vote
1answer
148 views

Should Consumer Router plugged into dotx (802.1x) enabled port see only WAN MAC address?

Probably a quick question. I am testing my dotx (802.1x) deployment on an Access Layer switch. I want to know if I plug in a consumer router, like a Linksys or Netgear, will the dotx only see the WAN'...
1
vote
4answers
225 views

Bridges and switches

Bridge forwards frames between PCs based on S/W. Switch forwards frames between PCs based on H/W. What does S/W and H/W mean?
1
vote
1answer
2k views

Can't access Bridged DMZ IP's from NATed LAN

I've configured my pfSense router with two bridged WAN to a DMZ (OPT2). Everything is fine to access web server from external with public IP directly on servers behind DMZ. The setup is pretty much ...
2
votes
1answer
2k views

Problem bridging two networks with Ubiquiti hardware

I want to bridge two networks using a Powerstation 5 22V and a Nanobridge M5 from Ubiquiti but I'm having serious problems with it. Here's a small doodle describing how the network looks like: Now ...
4
votes
1answer
27k views

MikroTik - problem with port bridge over LAN using 2 switches [closed]

I have RB2011UiAS-2HnD-IN router in my network. It has two switches - "switch1" with 5 x 1Gb ports and "switch2" with 5 x 100Mb ports. There is only one LAN addressing pool - 192.168.1.0. All 5 ...
1
vote
3answers
802 views

Can a mikrotik 750GL have the same IP as the DSL router connected in a different port? [closed]

On a simple network of about 10 computers setup with static IPs in the 192.168.1.x range, the ISP's DSL router occupies 192.168.1.1. All computers and the router physically connect to a simple network ...
-1
votes
1answer
1k views

Can a Bridge forward frames with the destination as broadcast/multicast

I have a question regarding multicast and broadcast frames on a network bridge. Will the bridge forward these frames from one network segment to another network segment ?
6
votes
1answer
9k views

Mobile devices behind wireless bridge not getting IP address

I'm trying to get a wireless link set up to a building about 1/2 mile away from the rest of my network. I'm using a pair of Engenius EOC2611P radios, and as far as I can tell everything is set up ...
6
votes
1answer
36k views

Difference between gateway, router, switches and bridge

I am going through a course of networking and want to know the difference between the mentioned devices. I have heard that the switches: Establish a temporary connection between the devices connected ...
9
votes
2answers
8k views

pfSense multi-wan Bridge, NAT, Load balancing and CARP

Context I currently have : 1 pfSense 2.0.2 router (on a Firebox X-Peak X5000) 2 WAN 1 LAN 3 Servers My interfaces WAN1 68.XX.XXX.98 to 69.XX.XXX.102 WAN2 65.XXX.XXX.58 to 66.XXX.XXX.62 LAN 192.168....

1
2