A router is a device that forwards data packets across multiple networks. Questions tagged with router can cover router hardware, software, and network configuration.

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Apache server in local computer needs to be run on internet

I have gone read your answer for "What is port forwarding and what is it used for?" question.Your explanation is great.I have one doubt please clarify that. I'm running a apache server application in ...
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How can i send message to router to know different interface ip block from my local pc? [closed]

If i connect in a wifi hotspot than i get a ip and gateway through which i can ping router but is there any way to communicate with router for which i can know it's another interface ip block from my ...
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Printer wasn't working. Gave it a Static IP and now it works! But why?

I was toying with my printer to get it to work. Originally, the printer was automatically given an IP of (169.254.248.206) However... I read that manually setting the printer's IP outside my ...
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Ports open in router settings, Firewall disabled, no DMZ's, port's still appear as closed, why?

So I'm currently attempting to host an IIS and opened the nessesary ports, I can connect to it via localhost and on other machines in the network, however when attempting to connect to it over WAN I ...
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viewing the dvr from wan failed

I have a DVR in my store with four cameras . I have port forwaded it and used no ip service to fix my ip adress . Now i can view the DVR when i am inside the network by typing the local ip adress of ...
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38 views

Sniff wifi traffic with TCPDump

I am trying to sniff traffic coming from or going to a smartphone on the local WiFi network (in a legal way). For that purpose I use the command TCPDump on a computer connected to the same wireless ...
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22 views

NETGEAR router-firewall setup

I have a NETGEAR WNDR3400 and it is connected to a NETGEAR FSV338. Do I need both the router and firewall to protect my network, or does the router act as a firewall too? In addition, the firewall and ...
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compiling c program in openwrt [duplicate]

-2 down vote favorite I'm using attitude adjustment SDK and Ralink/Mtk platform to compile c program in openwrt. Can any one help me step by step procure to execute the program
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67 views

Can two routers be in same IP-range?

I'm having a modem with a built-in router, that connects to the internet through the 4g-network (productname: Huawai). To this modem, I have a router connected in Lan1 (productname: ZyXEL). So my ...
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1answer
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Why do some of my devices show up twice on my routers DHCP list?

I bought a new router yesterday, but I dont think that's relevant because on my previous router it happened too. The only difference now is that my first router wasn't dualband and this new one is. So ...
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Belkin set up page not available after enabling access point

I was looking to figure out why my sling player wouldn't cast to the tv... read a couple things that ap isolation was at issue... went to the belkin page and saw access point button so I followed down ...
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2answers
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Why does a device show up twice on my dhcp table? [duplicate]

I bought a new router yesterday, but I dont think that's relevant because on my previous router it happened too. The only change is that my first router wasn't dualband and this new one is. So that ...
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1answer
29 views

Multiple nodes with same IP

At my current office over the years people have added more and more hub/switch/routers to the network without proper settings. I am thinking since most if not all of these devices have their default ...
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TL-WR740N Disconnects shared folder

I have a network 1 server 2 client PC and 4 laptops When only the 3 PC are turned on, shared folder works fine but when all units and laptops(not wireless,connected with LAN cable) are connected the 2 ...
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1answer
28 views

SSHing into VPS with single IP

I have Comcast Internet for my home, and have a single IP. I've set my hardware router to direct SSH to a physical Linux server. On my physical Linux server, I've created a virtual private server ...
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1answer
34 views

Is it possible to get ip address of a router thru mac id?

Is it possible to get ip address of a router thru its mac id (router) ? also I am connected in the same network (ISP)
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Change bash to default login shell on AC66U running Merlin and Entware

I'm trying to switch from sh to bash as my default login shell, on an AC66U running the Merlin firmware. I have bash installed in entware's partition, but when I switch user:x:0:0:user:/root:/bin/sh ...
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1answer
74 views

How to find out who is DDoSing you

So I (had) a friend who now hates me and he said he would take me offline if I blocked him on Skype. I did not believe him and I said "I don't care, do your worst". Big mistake - he found out my IP ...
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dhcp bridge w assigned ip address

You seemed to be the most helpful from what i read on most threads, so i'm gonna run this problem by you and see what we come up with. ill start with the problem my xbox 1 says i have an open NAT and ...
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18 views

Unable to Connect Marantz receiver on Ethernet on D-link 2750U

I was using a Netgear router, which was connected to my BSNL internet connection working as a Modem and a Router, it was connected to my Marantz receiver as well which I use to connect through my ...
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2answers
55 views

Problems in Installation of OpenWRT on Dlink DIR-825

I am trying to install OpenWRT on my Dlink router DIR-825 with hardware version B1. I have Firmware version: 2.06EU. and I when I try to upgrade Firmware and select the OpenWrt image file ...
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1answer
38 views

What is the name of a some hardware-device feature which displays user's internet connections?

Problem: I'm trying to find a small hardware device (eg. a modem/router? firewall?) that can tell me who (private LAN IP addresses) is connecting to what other (public) IP's and their up/down ...
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1answer
25 views

Number of devices connecting to wireless router are limiting

I have NETGEAR DGN2200 wireless router in my home. I have configured it to support any device can connect to it. But after 15 devices, no other device can connect to the router. Please suggest what ...
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2answers
53 views

Waiting for google.com

I'll be the first to admit I'm not an expert at administering a home network. I'm a software engineer by trade so my expertise lies in code operations, not networking or administration. I'm having an ...
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22 views

Boost wifi range from laptop to connect to university network from my home

I bought a Netgear R7000 hoping that I could use it to access my University network from my home, which is very close to the university (across the street). Netgear technical support showed me how to ...
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1answer
70 views

Using tcpdump to monitor Chromecast activity

Background: On my home setup, all traffic is routed through a single TP-link router which currently has OpenWRT intalled. I set up DNS ad blocking with a pixelserv setup, so all devices on my network ...
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Belkin AC1200 Router - not resolving DNS requests

In setting up a Belkin AC1200 Modem Router for a family member, I've noticed a weird problem. It connects to the ISP fine and gets their DNS servers etc. However, no device connected to it can resolve ...
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2answers
124 views

Connect to a computer behind a router I do not control

My ISP has assigned a single IP address for my entire apartment building (the ISP has an exclusivity contract with the building). The 'WAN' address my router sees is '192.168.1.130' which tells me I ...
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I cannot capture DHCPv6 packets on GNS3 using Wireshark

I have got a router set up as a DHCPv6 server connected to a host that gets an IPv4 & IPv6 addresses from it, however I am not able to capture any DHCPv6 packets at any point of the connection. ...
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14 views

How to ensure iptables DNAT redirect all, to work with domains?

When redirecting all sources (any port) to my router IP, it works with IP. I do this with iptables, Nat/DNAT PREROUTING. $ iptables -t nat -A PREROUTING -i wlan0 -p tcp -j DNAT ...
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2answers
32 views

Wireless network setup for 4 story townhouse

I currently have a Wireless N router + DOCSIS 3.0 modem on the 3rd floor of my home, and would like to have wifi access on every floor. I have very little background in networking, and was wondering ...
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What is the procedure of gaining and maintaining wireless internet?

There are a lot of parts in the procedure of having and maintaining a Wifi connection (or lack thereof) that sometimes makes me confused as to what the heck is going on when I try to connect to a ...
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45 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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Weird FIOS router issue started TODAY and b0rked Windows PCs only

So this morning when I woke up, I experienced something I've never seen. All of my windows PCs (4 of them) could get on my Wifi, but not access the internet. All internet addresses would ping to ...
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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
23 views

how to take wifi network in cable & again cable to wifi

I am web developer, only have limited knowledge about networking. My Problem is, I have a wifi notwork on first floor of building and living at 8th floor.(First floor wifi is not mine, but i have ...
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1answer
24 views

home router + tp link access point + tp-link router

I'm in my beginning of the journey of studying to CCENT exam and I got myself confused regarding the home setup. I was looking at the ip address of my home network where we have one black box ...
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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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Mapping network drive from a shared external HDD

I am using Windows 7 OS. I have recently changed my Linksys smart router to an Asus RT-AC87U. The router has an external HDD connected to it that serves as a file server and can be accessed from the ...
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2answers
162 views

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. Both routers need to provide wired and wireless Internet access. I'd like to know the ...
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21 views

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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2answers
48 views

Cable modem and wireless routers set up

I have cable internet, 60meg. I have just bought a Asus rt-ac56r wireless router. I also have a Linksys wrt320N. I tried to get the Linksys to be a repeater by downloading and installing dd-wrt but ...
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1answer
31 views

Laptop doesn't connect to internet while other computers are connected

Having problems connecting wirelessly a laptop to home internet router. Other computers see the network just fine, but when this one is attempting to connect it fails and the whole network goes down, ...
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2answers
59 views

External IP Addresses, Subnet Masks, and SSH - How does it all work?

I'm really confused as to how I can connect to a specific computer on my network on a computer in another network over the Internet. For example, I have a beowulf cluster constantly running at my ...
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Frequently need to restart router maybe by low memory [duplicate]

Often my network stops working and after a router restart it works again. I think that is caused by memory fill up in the router. This is what I get when the router stops working. What should I ...
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1answer
39 views

BT Home Hub as Wireless AP

I have recently left some accommodation where we were using a BT Home Hub 5 (Type A) Router. We've cancelled the contract with BT and they advised we don't need to sent the router back to them - ...
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1answer
41 views

Can I connect Range Extender's Ethernet Port to another access point/router?

I have a home network with 2 Netgear Routers: 1 Modem+Router, 1 Router only. I have DELL Laptop, with Windows 8.1. Presently, the router + modem gets heated up due to being on since months! And so ...
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1answer
39 views

IP address appears instead of hostname on LAN to network router

In the CentOS 6 servers the hostname command displays the name, but in the "PC NAME" field in the Actiontech router it displays the IP address. How can I make sure the CentOS servers are communicating ...
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Bypassing router's DNS settings not working

From researching around the web, I found out how you are able to bypass the DNS settings that are configured on the router by naming the DNS servers you want to use on your PC. Supposedly, the PC DNS ...
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Connection interruptions on Debian router, possibly due to excessive duplicate ACKs?

I have a Debian server as a house router, which for a year has been working flawlessly. However, I recently moved and switched service providers from FiOS to Comcast, and possibly as a result am ...