Networking is the art of connecting two or more devices together so that they can communicate with each other.

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Expanding wireless coverage: What are the differences between LAN to LAN and LAN to WAN when it comes to connecting two wireless routers?

I'm trying to link two wireless routers with an Ethernet cable in order to expand my wireless network. I'd like to know the differences between LAN to LAN and LAN to WAN connections. Both wireless ...
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2answers
7k views

Can ping device from one computer and not the other

I've recently been assigned to work on a diagnostic program done in C++ which communicates with a piece of electronic equipment. Our normal scenario involves communicating via an RS232 interface, but ...
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7 views

OpenVPN starts from CLI but not using “service” or on boot

I've set up an OpenVPN server (loosely following this tutorial) I can start the service using sudo /etc/init.d/openvpn start but if I use sudo service openvpn start I get the following error: ...
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2answers
1k views

Only one wireless connection allowed Internet

I have a TP-LINK TL-WR940N router connected to a cable modem. I have two computers connected via WLAN one of which is a laptop using a 802.11a/b/g/Draft-N card and a PC using TP-LINK TL-WN722N ...
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21 views

Can not bypass mac address filtering

I add a white list filter by mistake to my wifi modem router, so I want to change mac address to that IP. I run this command: ifconfig wlan0 down ifconfig wlan0 hw ether xx:xx:xx:xx:xx:xx ifconfig ...
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7 views

How to config windows firewall so VM Host-only can ping Windows 7

I start a VM (Linux) in host-only network connection (manual IP : 192.168.8.123) under Windows 7. After turn off the VM firewall, I can ping VM from Windows. However, when I try to ping from VM, it ...
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12 views

Gateway set to unexpected PoE interface in ADSL modem

This issue came up during a routine check on my router/modem settings. Details follow. I use a TP-Link TD-W8901N ADSL modem (specs here) facing the internet. The modem manages a 192.168.1.x subnet, ...
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1answer
14 views

How do I find the MAC Address of every networking of my notebook in win 8?

I tried getmac command in command prompt. What are those '3' devices of which the MAC Address is represented? I Also Tried this Command: ipconfig /all Now, What are these "5" Mac ...
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6k views

How to fix “Reset the Local Area Connection errors”

I'm getting errors saying Reset the Local Area Connection - doesn't have a valid configuration or No Internet Access or Reset Network Adapter on Windows 7. Microsoft solves the problems, then in come ...
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2answers
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What is the 'Real' Definition of a PORT? Where are they installed?

I am confused the concept of a PORT in Networking. But am not clear with where do they exist? My Queries... Where do they reside? Can I change them? How does the ISP blocks a Port(I ...
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2answers
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How can I put my CentOS on public IP so that I can access it WinSCP from home?

I have a centOS system at office and I want to access it from home via WinSCP. I have a static public IP at office. Please help!
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calculate speed of transmission in binary system

File 8 GB was sent at the time of 5 hours. Calculate average speed of transmission in Mbps I know this way 8GB = 8192 MB 8192 MB = 65 536 Mb 5 h = 18 000 s 65 536 Mb / 18 000 s = 3,64 Mbps But ...
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4answers
14k views

Shortcut for “Network and Sharing Center”

Is there a control panel link to open the Network and Sharing Center in Windows 7 ?. Edit: I am aware that the command: control.exe /name Microsoft.NetworkAndSharingCenter does what I want, but I was ...
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2answers
17 views

How to initiate remote access from controlled server machine?

Assume our windows 7 machine A has no public IP - it's connected to LAN and has IP like 192.168. This machine has access to Internet. How to initiate remote access from this server machine A to be ...
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1answer
35 views

Permission issue on network share drive

I am using Windows 7 on work domain network. One of the shared drives is mapped automatically when I logon with my domain user. However, when I try to create a file or directory from my workstation in ...
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26 views

Is it possible to track incoming and outgoing internet packages [on hold]

I have a simple program that synchonizes with the internet in certain amount of time. I would like to see what data the program sends and receives. How can I watch this data or at least show the ...
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1answer
11 views

What does 300+300mbps on a wireless router mean?

I'm looking at a router on amazon, the netgear n600. I'm getting it for the dualband. Well one of the features say 300+300mbps. Does that mean each channel operates at 300 mbps? Does it achieve ...
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2answers
3k views

Remote Desktop via Ad-Hoc on Windows 7

Is there a way to connect two PCs running Windows 7 via a wifi ad-hoc network and then use Remote Desktop from one of the PCs to the other? In addition to this the Remote Desktop host PC should still ...
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3answers
2k views

Why does my ADSL disconnect sometimes?

I have a Linksys wireless ADSL modem. Sometimes I find that my Internet access is lost, so I'm forced to either: Turn off the wireless application on my laptop and back on again Turn off the modem, ...
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Debian server management GUI

I have to manage a number of Debian servers (one as the KVM host, and the others as virtual servers for File management, Infrastructure management - DNS, DHCP etc, and finally a Debian based ...
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2answers
19 views

Advantages of Multi-Tier and Multi-box firewalls? [on hold]

I'm currently doing a University project and am having trouble getting my head around a few concepts. One reason is the looseness of terms in IT, with network tiers referring to several things ...
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20 views

How to Identify Class A, B and C IP addresses that look similar?

The question I had come up on my CompTIA test was Which of the following is a private Class B IP address? The choices were A 10.0.15.1, B 172.16.0.1, C 172.16.1.1, D 192.168.1.1 We know that within ...
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Internet sharing

I want to share internet connection from my wireless adapter, my modem router combined in one device is configured on bridge mode that allow only one connection at time.... the cause is my internet ...
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25 views

accessing outside my network through a server

I have: A user-machine (embedded device where I can't log in to console or ssh) , that doesn't have access to lan 192.168.5.x B a server debian that sees the A's network , but is in 192.168.1.x ...
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Need to access DSL with VPN

My Windows 2012 R2 server is connected to cisco VPN router with static IP. I want to connect to internet. I have connected second eth card to ADSL router. But there is no internet connection. The ...
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51 views

Unable to login CPE's configuration page

I have OUTDOOR WI-FI CPE installed by my ISP for internet connection. Manufacturer: "Telenet systems" Model: "TWI 1040 - PE" The specification on their website says it supports HTTP web based GUI ...
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HTML5 web content really slow, somehow caused by ethernet driver

HTML5 content is really slow for me, browser independent. It seems that my ethernet driver crashed recently, causing HTML5 videos and other content to load slowly, get stuck etc. I updated the driver ...
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1answer
2k views

how to split up network into two subnets with only one router

I have one router on my home network. This acts as the main WiFi access point for all devices, as well as being connected to a simple switch for my home lab. I would like to be able to isolate my home ...
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3answers
189 views

I need to share my internet connection every time I turn on the PC

I use USB internet connection. It has a dialing software which saves my username and password and auto connects after turning the PC on. I bought a wireless router (TP Link TL-WR720N). I want to use ...
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Windows 10 unable to connect to Internet through proxy

I am on Windows 10 Insider Build 10162. I use a proxy to connect to internet. Internet works fine on both Microsoft Edge and Google Chrome. But when I try to ping Google.com from cmd, it says "Request ...
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8 views

How to configure charles to monitor traffic with local server? (osx)

I'm trying to set up charles to monitor traffic with a server that is running locally. I think I got this working before with another server but for some reason it's not working with this one. The ...
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2answers
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ipTables, how to block all services requests on port 80 for an IP?

On a linux server/router, I want to block port 80 only for one IP (example : 1.2.3.4 ) I have been given this example : ### Block Incoming Port Requests (BLOCK PORT) # To block port 80 only for an ip ...
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wan was exceptionally disconnected

i have asus router and i have problem . i saw my router system log and here was one unknow text "WAN was exceptionally disconnected" but 4 second again access net , what should do i that don't ...
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1answer
2k views

xtreamer doesn't see Window 7 shares

Weird situation after reinstalling Windows 7 on my PC. Suddenly the xTreamer (media streamer) that's connected to the same LAN doesn't see shares by my PC. Other PCs (and even a MacBook) on the same ...
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1answer
22 views

Pushing routes in OpenVPN not working on iOS?

Because of a certain public government firewall with deep packet inspection preventing OpenVPN out of the country, I am trying to run OpenVPN over SSH. I also wanted all traffic to run through ...
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How would I configure a dedicated server only to be accessible via vpn

I have a server inside my lan. It runs owncloud and some applications for development purposes: docker, wildfly, tomcat, samba ... My workflow: I use a openvpn appliance to get inside my lan and then ...
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1answer
2k views

tracert command is not working but able to access the same site through browsers

tracert [site name] is not working in cmd prompt. But the same site has been working in all of my browsers . Please find below output of command. I need to use this command in my batch file but there ...
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17 views

Disconnecting from networked computer

I was given my old computer at work when our company merged with another, but its still connected to the work network and requires my work user name and password.. Is there a not terribly complex way ...
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3answers
1k views

Prevent Windows From Creating New Network Names when Tethering with Android

How can I stop Windows 7 Home Premium from creating new network names each time I tether my Samsung Tablet to my Laptop using Androids USB Tethering Option? Yesterday, it was Network 10. Each time I ...
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3answers
8k views

Issues with ForceBindIP on Windows 7 (x64)

I am desperately needing a solution to binding certain applications to specific network interfaces. ForceBindIP seems to be my only solution. Although the website claims it works up to XP, Google says ...
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Ubuntu server as DHCP server for dual stack

I currently have an Ubuntu server on VirtualBox set up to give hosts on my GNS3 topology IPv4 addresses, and it is working without issues. However, I would like to have that same DHCP server give out ...
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1answer
47 views

Router causing slow internet speeds

I got a new modem that supports up to 300Mbps, and when I plug my Mac mini directly into the modem, I get speeds of up to 350Mbps. However, when I put my router (Netgear wndr4500), which has ...
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12 views

Wifi hotspot, what's wrong with this redirection structure/code?

My linux machine provides a Wifi access point (made with hostapd package). Interface wlan0 is thus accessible by machines around. When clients webbrowses my machine, I would like any IP/url to be ...
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1answer
15 views

What is MASQUERADE made for?

A simple redirection is used on my server, with iptables rules : $ iptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT --to-destination 13.37.42.1:80 $ iptables -t nat -A POSTROUTING -j ...
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2answers
89 views

How to redirect LAN traffic to a L2TP/IPsec client connection on a gateway?

I established a L2TP/IPsec client connection on the gateway, and I'm trying to redirect my host on LAN to use this connection when accessing the Internet. Here is the network topology. This is my ...
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1answer
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Why rdp local drives don't work until I view the settings and reconnect?

I have some users that use remote desktop connection and recently they cannot access their local network drives within the remote session. When I view the settings under local resources and click on ...
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How may multiple LAN connected users control a single Windows instance (or run multiple Windows instances) simultaneously?

I am thinking of something like the combination of Synergy and TeamViewer but where multiple mouse pointers and keyboard inputs can work in parallel. Does anything exist to achieve this? Some ...
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1answer
22 views

Can I mix and match ethernet over powerline plugs?

A while ago I purchased a TP-Link ethernet over power kit from my local Aldi. It works really well, and I'd like to add more, but they no longer sell that particular product. If I were to buy a D-Link ...
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1answer
90 views

Multi-Gateway Routing - Fedora Kernel 3.17 & 3.18

I know the discussions on multi-gateway source (policy-based) routing have been hashed many times, but am yet find an answer to my current problem. The server (running Fedora 21, Kernel 3.17 or 3.18) ...
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0answers
50 views

Can I add multi-mode fiber optic media converter at any point of my network previously distributed in single-mode fiber optic?

I have used single-mode fiber optic media converter in my whole network. But my Fiber Optic cables have 2-pair of optical wires. I only use one of them for single-mode purpose. Now I want to introduce ...