A network switch or switching hub is a computer networking device that connects network segments.

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1answer
33 views

Is there any defensive element for non-standard voltages on networks?

Assume that an attacker join to our network as a good person and we give him a cable that is connected to one of our switches. Now, If he connect the wires of that cable to a high voltage (60v for ...
0
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1answer
23 views

How Duplicate address is detected in lan for ipv4 networks

If i have two pc's connected to a switch , and i statically configure the same ip address on both the pc's, then how the pc's come to know that there is a address conflict (duplicate address) on the ...
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0answers
18 views

Why does my managed switch report a short in my cable? Is it accurate?

I'm using a Dell PowerConnect 2824 and it has a built-in Marvell Virtual Cable Tester. Is it accurate? It's reporting "Short Cable" on many of my cables that are working perfectly. However, two new ...
1
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0answers
36 views

Possible to route multiple networks through same Switch? [closed]

I am not sure if I phrased this question correctly so I drew it out as best as possible My dilemma is I am on a budget and Nano/Booksize PCs with dual RJ45 connections are twice as much as the lower ...
0
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2answers
42 views

Switch after Router seems to create own subnet

I have a Router (Easybox 802) connected to the Internet. It has sockets for LAN-cables and a wifi-antenna. One socket of the router is connected to a switch (netgear fs605 v2) in another level in the ...
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0answers
15 views

(Un)managed switches (R)ARP tables size?

The question in short : What is the address storage capacity of (un)managed switches nowadays ? Or does it not matter anymore ? Question in long : I remember that back in 2005 you had to make sure ...
0
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0answers
66 views

NAS can't connect via switch but works directly on router

I own a WD MyCloud 3TB and a TP-LINK TL-SG1005D Switch (10/100/1000Mbps 5-Port Gigabit Desktop Switch) as well as a Linksys X3000 Modem-Router. If I attach the NAS to the router it connects without ...
1
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2answers
63 views

Adding a switch hangs my network

In my current setting, I have a Cisco EPC3982AD router running it's own DHCP server, and handing out addresses on the 192.168.150.X subnet to machines connected to it, on the LAN interfaces. In the ...
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1answer
37 views

Router as switch between wall and main router

Here is the situation: I have an old SMC router that I want to configure as a switch (or bridge, I'm not sure what it would be...) to act as a device that is connected to the internet outlet in the ...
1
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1answer
32 views

Connecting to a computer on a switch from a computer directory from router

So I have 3 Computers: Computer 1: Connected Directly to router. Vendor: Cisco, Model: DPC3939 Computer 2: Connected to switch. Vendor Dynex, Model:: DX-E401 Computer 3: Connected to switch. Vendor ...
1
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1answer
99 views

IPTV and NET over one cable - VLAN

My scenario: House with 2 floors. 1st floor equipment: ONT (fixed on this floor) - with four ports - three for IPTV and one for Internet Netgear Switch GS105E NAS (fixed) Computer (fixed) ...
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1answer
46 views

Monitor switch traffic load on specific port (CISCO managed switch)

For troubleshooting networks problems I need to know how to monitor the traffic (work load) on a managed switch. I read about SPAN for CISCO switches. But it seems to be overkill since it does mirror ...
0
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1answer
16 views

Make CISCO RVS4000 into hub mode

I am trying to do packet analysis with a RVS4000 Cisco device that has four computers connected. The device is not broadcasting packets to the other devices connected to the device. For my lab, I ...
0
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3answers
31 views

can I use eth0 interface to connect to two different networks

I'm using Ubuntu on PC. I have switch with 5 ports, and Rasberry. how can I connect to raspberry via eth0 using static network (192.068.0.0/24) and in same time connect to internet using another ...
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2answers
19 views

Can just modem + hub distribute internet to the computers without router?

As I asked in question header, without router can we share the internet with modem+hub or modem+switch?
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1answer
55 views

Router as VLAN broker bridge on single managed switch?

Will the network configuration below work? [ 8-port Managed Switch ] VLAN_1: Port 1 = Cable Modem VLAN_2: Port 2 = Router WAN VLAN_3: Ports 3-8 = Other Can the router on VLAN_2 broker between the ...
1
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0answers
68 views

Cant get Vlan to work on tomato shibby (AP)

Im setting up a small network. The hardware used is: HP 4330s with pfsense( As a router ) -> Broadcasting vlan1000(Admin) and vlan1001(Guest) Zyxel gs1900-24e (Switch) Asus RT-N66U firmware replaced ...
0
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1answer
37 views

Multiport connection between home router and switch for better LAN bandwidth

I have quite a few GigE devices at home that I’d like to have better LAN speed between them, but at the moment, all I have available are 3 ports on my (GigE) FTTH router (It has 4 but can’t use one of ...
10
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2answers
1k views

Multiple switches - how does it work?

I was reading about networking hardware some time ago and came across an explanation on how network switches work - basically, it said that a switch keeps an internal database of what MAC address is ...
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0answers
14 views

Where does the OS fetches the MAC address before encapsulating frames?

packet arrives from application->...Network->(IP encapsulation added here as per IP configuration)->goes down to Data Link Layer Here the Framing is Done and SourceMac and Dest Mac is added for LAN ...
0
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2answers
37 views

How can I separate networks so users can only see computers in their own department? [closed]

With 5 different departments, I want people to see and ping only one's department computers. 60 computers are connected in LAN environment through various switches, routers and one Cisco Managed ...
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1answer
30 views

Can we build a network switch chip by ourself? [closed]

Looks it it simple enough - just forward package to other port. I am wondering if is possible to build it on some common ARM SOC. Didn't need care about the speed or advance feature.
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4answers
108 views

Is a switch just a simple router?

A switch connects computers together. As an example we set up a switch to create a network. When computer A wants to speak to another computer B, it sends the packet to the switch (it has the ...
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0answers
120 views

10/100Mbps router overwhelmed by Gigabit switch & its devices?

I believe I've got the scenario outlined in this SU answer, where my 10/100Mbps router is being overwhelmed by a Gigabit switch and the devices connected to it. This comes into play with frequent ...
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1answer
25 views

How do I get a switch to refresh connections faster?

The process I'm using is as follows: Setup a repeated ping from one machine (that's already connected to the switch) to the IP address of a second machine. Plug the second machine (which is powered ...
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4answers
60 views

Is it possible to use a ethernet switch to provide two different routers with the same internet?

Say I wanted to created two networks. One for the more privileged group of people. The restrictions on this network would be less severe. Then the other network would be for the "guests" or those ...
0
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1answer
25 views

Connected Gigabit switches with 100 Mbit devices

I need a network with two unmanaged switches. Each switch will have two, 100BaseT devices attached. 100Base devices on one switch communicate with devices connected to the other switch. If I ...
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2answers
57 views

Control communication flow between devices on a network

For simplicity, let's say my network looks like this: [Internet/Modem] | [Standard home wi-fi Router] | [Windows/Mac PCs] ...
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0answers
17 views

where to place network switch now that wires are run?

I just had my house reno'd with about 1000' of CAT6 everywhere, for both internet and phone Currently, nothing but cables dangling from the walls, gathered in the basement I've never wired up a ...
0
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2answers
63 views

Cisco Catalyst 2950 Console to DB-9 female to USB Linux

My dad has given me a secureworks iSensor with centOS, 3 ethernet cisco catalyst switches and a the wires needed to connect them. I am trying to connect several computers via ssh, and eventually a ...
0
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1answer
52 views

Modem not able to easily establish broadband connection. Takes several restarts

I had asked similar question here. But instead of reviving it, I thought I would post a new question with additional details. The issue is establishing broadband connection initially. I have a DSL ...
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0answers
36 views

Computers connected to same switch cannot access one another

I've connected multiple computers to a ASUS 8-port switch (all have IP address in range, mask 255.255.255.0, and same gateway). I use them mainly to RDP into one of the computers, which acts as a ...
0
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1answer
47 views

Are there any unmanaged gigabit switches available without indicator LEDs? [closed]

I need to put a switch into my home theatre stack and am looking for something without blinking indicator LEDs. I’ve debated taping over them but that looks ghetto and actually requires some precision ...
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3answers
213 views

How to add an additional ethernet jack in a room already wired?

I have a router and switch in the basement and have set up ethernet jacks here and there on the first floor. During some remodeling, I had an electrician pull Cat6 cable up to my 2nd floor. Now I ...
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0answers
35 views

Network interference from a PC wired into router/switch?

Is it possible for a desktop PC directly wired into a switch to have a bad ethernet port which causes problems for other devices wired into the switch? I noticed whenever one of our desktop PCs is ...
3
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1answer
44 views

Ever have bad voltage on an ethernet jack on a router/switch?

So I've got a bit of an odd problem I'm trying to solve. I have an ASUS RT-N66U router which has a desktop, xbox, and my brand new NAS directly wired into it. Whenever I hook the brand new NAS up ...
1
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1answer
184 views

Setup Switch HP 1810-8G - Internet connection with several VLANs

I'm newby to this, indulge me. We bought a new HP switch with VLAN. The goal is to have two separate VLANs. The first port is for the router/internet connection. I've two groups ( A, B ) using the ...
1
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2answers
54 views

How do I manage two internet lines going into one router at home? [closed]

I have a normal home WiFi network with some 10-15 devices connected. I have one regular use 2Mbps ADSL internet source and one high-speed 50Mbps cable line. I don't need to use both simultaneously, as ...
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0answers
19 views

Is there any way to persist the usage stats of a router even if it reboots due to power failure?

I have a router (Tp-Link WR841N) for home use. I need to be aware of how much bandwidth is used in a particular time period(for example- a month) to avoid data caps applied by ISP. I can monitor my ...
0
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1answer
36 views

Router and Switch MAC Address

There is a MAC address for each router and switch interface. But, is there a MAC address that represents the whole device?
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0answers
10 views

Random Slowdowns on Linksys Switch

I have a CentOS server on a Cisco-Linksys EZXS88W EtherFast 10/100 8-Port Workgroup Switch. I normally get network speeds of 100 Mbit/s, as advertised, but every once in a while, the network speeds ...
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0answers
12 views

VLAN routing query on HP Swtch

I have Layer 3 HP switches throughout my organisation. They are set up to perform routing between all the VLANs connected to them, and everything is working. I am pretty proficient with using them, ...
0
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4answers
97 views

Networking, Switches, and Running Cables

I have a three floor home with the basement about to be finished. Here is my issue: I want a hard line to the basement as my wifi doesn't quite get there, and the basement will be the new ...
0
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0answers
45 views

Mixed HyperV and VirtualBox network running across multiple pcs connected by a switch

I have access from time to time to 3 laptops (each of different age/spec) and would like to make use of the resources to setup a network/windows domain (or multiple domains) connecting the laptops to ...
0
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3answers
2k views

Can I use a ethernet splitter to connect a router to two devices? [duplicate]

I have a portable mini wireless router with different functions (AP/Client/Router). Can I use a ethernet splitter to give internet access to two devices? The router only has a ethernet port and ...
0
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1answer
35 views

Tagging VLAN1 on a switch

I have a Nortel switch which dates back to 2006. It has an egress tagging function which I think tags all VLANs including native VLAN1. This is my scenario: I plugged my laptop into that port which ...
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0answers
30 views

HP 5120 vlan not working

So I have this odd issue with our HP 5120 switches. The VLANs will not pass traffic unless a interface with a IP is assigned to the VLAN. Problem is there is a limit of 8 VLAN interfaces that are ...
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1answer
102 views

Why does our Netgear FS105 Port Splitter no longer work at our new apartment?

I have a Netgear FS105 5-way port splitter for splitting an internet connection from a router. At our previous apartment, the combination of a router hooked to our Time Warner Cable Coaxial internet ...
0
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1answer
25 views

No ethernet link with certain combination of devices and cables

I have a problem that seems odd to me. I have a small patch panel in my home which is wired to various outlets. Until recently, I was running my router (an Asus RT-N66U) near the panel but am now ...
1
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1answer
68 views

Applications continue to use original audio device, even though I selected a different default audio device

Problem example: Default Audio Device is my Headset. ITunes playback through headset. I switch Default Audio Device to Monitor. ITunes continues playback through headset. This happens visa versa ...