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

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Link-local (zeroconf) networking with multiple hosts/interfaces

I have a machine (hostname foo) with two wired network interfaces, eth0 and eth1. When I connect another host bar to one of them (eth0), I can see in either one's NetworkManager that it's using ...
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5 views

Limited network connectivity when SSHing through an OpenVPN tunnel

I have setup an instance of OpenVPN with a public IP to allow access to a private subnet on Amazon EC2. I am able to SSH onto machines on the private subnet through OpenVPN but when I do I have ...
1
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1answer
14 views

Centralized Captive Portal

I have a client want to do captive portal on their hotel, where when user connect to their wifi, they will be redirect to their hotel website before can start using wifi. The problem is, their ...
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1answer
15 views

Overlapping address error in Packet Tracer (subinterfaces)

I have two subnets. 172.24.99.64/25 and 172.24.99.192/27. for some reason when i input 172.24.99.190 255.255.255.128 in g0/0.10 and then input 172.24.99.222 255.255.255.224 in g0/0.20, it says ...
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6 views

Is the Mercury router dropping PPTP packets?

I managed to connect my PPTP VPN server with Huawei router + Asus Ap at work. When I get home with my Mercury router, I can establish connection to the server which means at the server side, has ppp0 ...
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1answer
14 views

How to force application using localhost:9000 to shut down

So I'm not the smartes fellow when it comes to ports and networks and things like that, maybe why I now is in this situation. So I'm trying to connect to localhost:9000 with a AngularJS project I ...
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3answers
19 views

SSH broken pipe kills foreground process

I have 2 hosts that I can connect them through SSH. In one host, after a while, I get the error Write Failed: broken pipe. In the other host, I don't get this error. I don't understand why in one ...
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0answers
11 views

What are some software solutions to manage “off-the-shelf” printers [on hold]

I manage a small company with 30 employees. We have 6 HP 127FN Scanner/Printer's on our local network. Each printer connects to the LAN via Ethernet, and gets an IP address from our router. Each ...
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0answers
6 views

Troubleshooting connectivity issues a remote windows server 2012

We have a remote server one of our clients dials into. There are around 50 users logged into this. OS is Windows Server 2012. We are finding it difficult to troubleshoot connectivity issues because in ...
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0answers
13 views

Setting up wifi network with OpenWrt

I have router MR3020 with OpenWrt. I need wifi network with access to an admin panel of the router and the Internet from the another network. I have another network "BigWifi" (not mine), and I ...
1
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2answers
27 views

Can not go to the router admin page through 192.168.1.1

Just install the router and can not access to router admin page when I go to cmd and type ipconfig, it show something like ipv4 1.64.23.97 child network mask 255.255.255.255 default gateway 0.0.0.0 ...
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1answer
27 views

ping error two nic cards in linux pc

The problem I'm having is two NIC in my RHEL 6 server with different IP-addresses. PC1 eth0 - 10.10.0.1 eth1 - 192.168.1.1 The other computer is setup the same way. PC2 eth0 - 10.10.0.2 ...
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0answers
7 views

openvpn on load-balanced network

I'm running Tunnelblick (OpenVPN client) on OS X 10.10.3 to connect to my server back home. Everything works once the connection is made; that's not the problem. The issue is that I, the client, am ...
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0answers
17 views

Unable to connect to OpenVPN outside LAN

I've setup OpenVPN behind a router, and port forwarded 1194. The VPN is using the subnet 10.3.15.0/24 and has 192.168.1.14 on the LAN. It works when I'm connecting locally, or from my home network ...
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0answers
21 views

Command to see my current ip if proxy is applied only for a certain website

It might not be a relevent question here on so, but I tried on http://networkengineering.stackexchange.com and there are less users + they redirected me here. So, I am not a networking guy and I have ...
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0answers
20 views

Trouble at Setting Up Webserver

I decided to use a Raspberry Pi (with Raspbian) as a home webserver and NAS. I have installed on it Apache, Owncloud and Samba (for an easier approach for accessing files inside home). I also ...
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1answer
30 views

Possible to assign a domain name an IP adress on a router?

Is it possible to assign a fixed adress for some hostname on a router? What I mean is not to assign IP adresses to a local machine, rather to sepcify an adress for some specific host (like google.com) ...
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0answers
19 views

Viewing Xbox One Network Traffic

I am trying to view the HTTP/HTTPS traffic going from my XBOX one so I can see what is being requested. I started off trying to use Charles proxy like this https://www.youtube.com/watch?v=MP4ZcwSHxbw. ...
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1answer
17 views

Laptop can't access Desktop, but Desktop can access laptop [on hold]

My Windows 8 laptop sees my Desktop Windows 7 machine, but is denied access. The Desktop, however, has no such problem: it can access files on the laptop.
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1answer
15 views

Serva Login 0x35 NetPath not found, wrong credentials, or unreliable net

I'm trying to install Windows 8 via PXE network boot, I'm using Serva for this. When I get to the ServaPENet screen on my client I can't connect. Drivers are installed (I tried three different ...
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2answers
961 views

Steps to find the public IP address of a computer from scratch

I am aware of services like http://whatismyipaddress.com/ that allow a user to find his public IP address. What I'd like to know is, HOW such a service gets written from scratch? I don't need the ...
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0answers
16 views

Network issues when connecting to certain people/networks [on hold]

My problem is pretty unique to say the least. Me and my friend noticed this problem a couple months back but i didnt really care about it. Okay so the problem is that im only laggin to certain ...
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0answers
11 views

Long SMB session setup delay

I have a Windows machine connecting to an SMB share on a local Debian server. Everything works flawlessly, when it's connected, but the first connection (either after a boot / reboot, or after ...
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1answer
18 views

Why can't I reconnect to WiFi without reenabling “plane mode” in WIndows 8.1?

If I connected to any network, I should enable and disable "plane mode" to connect to other network or reconnect to the same. If I try to connect without this, I see monitor with red cross in tray for ...
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2answers
21 views

Bridging Firewall to Public Wifi

My building offers wifi to its residents. It is not managed by IT professionals. I would like to use this internet source some of the time, but would like to be protected from machines on that ...
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0answers
24 views

Connecting 3 PCs in a LAN

I'm running on GNS3 and in my topology I've connected 3 PCs. PC1 is connected to PC2 via eth0 and PC3 is connected to PC2 via eth1. I can only ping between PC1 and PC2. I cannot ping between PC2 and ...
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0answers
18 views

Forcing *BSD to accept both IPv4 and IPv6 traffic on a single socket

I have tried a ton of stuff and keep coming up entirely empty handed. Allow me to frame the situation: I have a *BSD Jail setup in FreeNAS that runs a Plex Media Server (Plexpass). It has IPv6 ...
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1answer
23 views

VPN across cellular routers

Let me preface this by saying that I'm not a networking guy. I am outside my element on this project, so any advice, suggestions, or buzzwords are appreciated. I want to design a network where ...
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0answers
11 views

Wifi bridge doesn't work on OpenWrt->ZyXEL Keenetic Giga II

Here's the situation: main router ZyXEL Keenetic Giga II which provider's wire plugged into. another router (TP-Link TL-WR1043ND) flashed with OpenWRT Barrier Breaker 14.07. a Samsung Smart TV which ...
3
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1answer
59 views

Is it proper to route default gateway to the modem instead of the DHCP/DNS server?

My setup is a modem (no DHCP or DNS) connected to a network switch. The network switch is connected to a Raspberry Pi that acts as a DHCP+DNS server using dnsmasq. The thing is, all traffic from the ...
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0answers
26 views

Sudden bluescreens when interacting with the Steam platform

I recently made a build for a friend and things are running great, except he always gets bluescreens that indicate a hardware issue when interacting with the Steam platform. Bootscreens often occur as ...
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9 views

Adding the route to openvpn server on the fly

I would like to connect to my openvpn server without a default route for internet (just a route for DNS), and to dynamically add the route to the server once the server ip is resolved. The purpose is ...
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0answers
15 views

Ip Addresses and VMware issue

So I am doing this lab which requires using VirtualBox. Problem: I need to make three different Ubuntu VMs with different IP addresses. The IP information I am getting for my three VMs are ...
0
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1answer
21 views

Two separated networks with the same ISP

I have one ISP and I want to create two different networks in two different floors. I have 2 wireless routers and the ISP modem which has an integrated router with 4 ethernet ports. I want the two ...
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1answer
10 views

Where is Host-only Networks setting on VirtualBox 4.3.12?

I'm using VirtualBox 4.3.12 r93733 (with Ubuntu as guest OS, and Windows 7 as host OS). Trying to configure a Host-only Network, I expected to see the following window (or similar): However, ...
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4 views

Route everything over virtual interface without dropping backend connection

I've got vpn-ws setup on my server. I'm connected to a public wifi which has blocked many ports blocked (obviously not 80 and 443). When I connect to domain.tld/vpn and run dhcpcd, I get IP address ...
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0answers
6 views

VPN failover on Tomato Router

I've configured two VPN clients on my router to ensure some of my traffic secure. One of the client is the major one and the other is the alternative one. I'm now using custom routing tables and IP ...
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0answers
20 views

Home Fibre Broadband User, 30+ devices, best solution [on hold]

I have a BT Infinity Fibre broadband connection (72mbps), with over 30 devices connected to my home network via WiFi (Bt Home Hub 4). Devices include MacBooks, iPads, 4x iPhones, 4x Kindles, 2x SMART ...
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0answers
12 views

Wireless internet has 10 minute periods of lag

I have a windows 8.1 asus desktop computer that connects to the wireless router and gets an ip address (dhcp) and is able to surf the internet. After about 2-5 minutes of using the internet, it ...
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0answers
34 views

Setup website for home which works offline (No Internet)

I know that though I don't have internet, I can access and set my router configuration via http://192.168.0.1 (or other similar IP addresses). I want to know if I can set my website same way like ...
0
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1answer
18 views

www prefix is not working locally

Hi i recently put a web page online on a synology NAS, the problem is the following: When typing www. before my domain name the page is not loading This is what i got so far: Added both ...
0
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1answer
15 views

VirtualBox bridged adapter not working with one network

I have been using VirtualBox bridged adapter with some networks and it has worked right. But a few days ago I have tried it with a new network and this time it has not worked. The only difference in ...
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3answers
39 views

Is IP address assigned to a network interface?

I heard MAC address is assigned to a network interface. A computer or router can have multiple network interfaces, so can have multiple MAC addresses. Is IP address assigned to a network interface ...
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0answers
20 views

asus router avoid plug internet line into local port to avoid parental control [duplicate]

I am setting the parental control for my son. But he always plug the internet line into local port of router and then he can access internet without parental control. How can I disable the local port ...
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1answer
20 views

can i apply QOS for the attached network diagram? [on hold]

is it possible to apply QOS for the attached network diagram? all traffic passes through the gateway pc. i want to know if the QOS policies i created on this pc controls all the traffic that comes ...
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3answers
22 views

VLAN trunking on interface only pingable from hosts on its VLAN

I am trying to set up subinterfaces on my Ubuntu 14.04 server for each VLAN. I believe I have successfully set them up using vconfig, but the subinterface is only pingable from hosts on its own VLAN. ...
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3answers
45 views

Why does my Linksys WRT54G have three MAC addresses?

I am using a wireless network created from Linksys WRT54G. From 192.168.1.1 (the web for configuring WRT54G), I saw an MAC Address: xx:xx:xx:xx:xx:20 From the bottom of the WRT54G device, I saw ...
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3answers
30 views

Why does Linux accept traffic on unconfigured loopback addresses?

On at least two version of Linux (Ubuntu 9 and Debian 7) I've noticed that, even though I only have a single loopback address configured on lo (the standard 127.0.0.1 one), it happily accepts packets ...
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0answers
10 views

Browsing network shares (SMB) causes spike in latency

I've managed to narrow down an incredibly frustrating problem with intermittent latency spikes on one PC on my LAN (Win7 Pro x64) to connecting to SMB shares. I have other Win7 Pro PC's that don't ...
2
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1answer
30 views

Which layer of network stack does access point operate?

Which layer of network stack do access points operate? (My question also leads me to wonder Which device can create a new network?). My question arises when reading Tanebaum's Computer Network: ...