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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Why is a router needed?

I‘ve been trying to figure out why a router is needed. I know a router can be used for DHCP and some other things, but I’m just thinking of networking with static IPs. So the following: Is it ...
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9answers
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How to identify from a Windows computer the wireless device that is poisoning router?

I live in a house with various other people who all swear that there is nothing wrong with any of their devices. The problem being is that when wireless is enabled on the router, ping sky-rockets and ...
12
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2answers
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Monitor traffic through a home router

We have an Internet connection which is shared on five computers via a home router. One of the computers is using torrents all the time. I want to find out which, and they won't tell me. How can I ...
18
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9answers
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MacBook Air constanty drops wifi connection

My MacBook Air keeps dropping wifi connection on my home network. When I connect to my network, it remains connected for a few minutes, then it drops the connection. I have no idea what's the problem. ...
10
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2answers
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Options for bandwidth management on a shared internet connection

The premise: Rural location, not many options for high-bandwidth internet connections. The fastest by far is Satellite internet, but it's expensive (both equipment and monthly cost, and has latency ...
7
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3answers
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Is it recommended to run a firewall/router on a virtual machine?

Googling found me people saying running a firewall/router as a virtual machine is "dangerous" but none of them gives any reason as to why it is so. I also found posts from people who are successfully ...
11
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3answers
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Windows 7 machine makes router drop ALL wireless connections

Some background: My home network consists of my desktop computer, a two-month old Windows 7 (x64) machine which is online most frequently (N-spec), as well as three other Windows XP laptops ...
9
votes
2answers
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Does 1 Gbit/s port in full-duplex mean 1 Gbit/s send and 1 Gbit/s receive?

I'm figuring out the best router for me based on their performance. When you have a 1 Gbit/s port in full-duplex, does that mean you can send 1 Gbit/s and receive 1 Gbit/s at the same ...
4
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3answers
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Connect to Computers in different router network

I have two routers, router1 one is wireless where I connect my laptops and the router2 is just a regular router that I connect the desktops to. Router one has its own subnet and router two has its ...
18
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7answers
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Is it possible for a router to “go bad” with time?

I've been having problems with my internet connection over the past weeks (intermittent disconnections, slow transfers, etc), and my provider keeps telling me that the problem is not on their end. I ...
4
votes
5answers
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How to connect a smart router to a dumb DSL modem?

Sorry for the very long question but in this case lots of details are necessary. Problem: My crappy Thomson TG585v7 DSL modem/wifi/LAN router reboots many times daily. I think it's because the custom ...
4
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6answers
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router with mixed-mode enabled - does it really cripple speeds for all?

Hey all, If I have a router that has "mixed mode" enabled to allow b, g, and n devices, it is true that n devices will suffer in reduced bandwidth if there are any non-n devices connected? I found ...
3
votes
3answers
10k views

Guest wifi mode on a secondary router

I am trying to configure a router as a secondary WiFi access point, that provides internet access but prevents access to the local network. The router supports both, but I cannot get it to work. My ...
2
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2answers
19k views

Lan to Wan setup how to connect two subnets

I hope someone can help me with issues I have with my home network. I have a Billion 7700N modem/router and currently I added a Western Digital N600 dual band router. By default (following setup DVD ...
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11answers
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Are routers limited to number of devices?

I'm going to buy a new router, but, I've just realised that for nearly all routers I've looked at (Belkin, Netgear, D-Link) don't state the maximum number of devices which can connect concurrently. ...
13
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2answers
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How do I know if my router supports IPv6?

$ ping6 :: PING ::(::) 56 data bytes 64 bytes from ::1: icmp_seq=1 ttl=64 time=0.046 ms 64 bytes from ::1: icmp_seq=2 ttl=64 time=0.053 ms 64 bytes from ::1: icmp_seq=3 ttl=64 time=0.058 ms ^C --- :: ...
11
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2answers
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What is the difference between a subnet mask and a netmask?

Is there any logic in using two different names for determining host ID and net ID? For example, if you type print route in a Command Prompt you get things with netmask, but the IPv4 settings seems ...
9
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6answers
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How can I find the IP address of my client bridge router?

I have a client bridge (LinkSys WRT54GL router with DD-WRT firmware). I specified an IP address of 192.168.1.2 for the device, however, when I run ipconfig, the default gateway is now 192.168.0.1. ...
8
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5answers
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Are there any wireless routers that allow bandwidth monitoring and throttling?

Are there any wireless routers that would allow me to see what clients are hogging up bandwidth and that would let me limit them so that they can't grab it all? Both wifi-wise and internet-wise. I ...
7
votes
2answers
2k views

WiFi cannot connect to internet in two router setup

I am struggling to setup my home network. I have the following setup, also shown in the diagram below (sorry for the MS Word screenshot!): My landlord has an ADSL connection, established by Router ...
7
votes
5answers
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How to record and replay http interactions?

Is there a tool I can use in Windows to record and then programmatically (i.e. under a script or batch file) replay a specific interchange between a browser (either Firefox or IE) and a website? ...
7
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4answers
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What does static DHCP mean? Static Dynamic is confusing

I've found some home wireless routers/ADSL+ modems (ZyXEL 660) talking about Static DHCP, when refering to assosiating a specific MAC to an IP, but still serve the configuration over DHCP. Doesn't ...
6
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2answers
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How to determine what type of wifi networks are supported by your driver on Linux

On Linux (specificially Ubuntu) what's the easiest way to determine what types of Wifi protocols your hardware and driver support? I have a router running DD-WRT that supports broadcasting in both a ...
5
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2answers
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“Private” MAC Address

I'm not new to home networking and I've been running DD-WRT routers for years. I'm a software developer, so "technologically" curious by nature but admittedly have never really researched in-depth low ...
5
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3answers
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Is it possible to change your local IP to something other than 192.168.x.x?

There's no particular reason for wanting to change my prefix for my local IP, I'm just wondering if it's possible. So can I change my local IP from 192.168.x.x to something of my own choosing? I ...
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5answers
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How to ssh a computer over a router

At home I have a linux machine behind a router. How can I ssh it?
4
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4answers
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Can I Chain Two Routers Together Keeping DHCP on Both?

I have read that I can connect a second router by turning off DHCP and NAT, but I want the second router to assign DNS (I'm using it as an access point for my kids, and will use OpenDNS family service ...
4
votes
1answer
3k views

How to configure QoS on home router

I have a USR9105 router and I'd like to configure its QoS to prioritize web traffic (browser) over everything else (e.g. torrents). I'm confused by its interface though: "IP precedence" allows ...
3
votes
2answers
827 views

Internet keeps dropping. 5 different routers have failed, changed modem, etc.

Sorry in advance for the long post. I've been working this issue for the past 4 months and I am at my wits end. I work for a small business that moved into a new office in December. When we moved ...
3
votes
1answer
9k views

Why does my D-Link Router keeps dropping my Outlook and Lync connection?

my configuration is as follows: Internet connection coming from the office (don't know details) => D-Link DIR-632 => Desktop Computer (Win 7), printer, Vonage. I have Microsoft Lync and Outlook 2010. ...
3
votes
1answer
4k views

Using a Wi-Fi router as bridge to increase the signal?

A friend of mine lives in an appartment building whose structure is such that the Wi-Fi signal is very weak. Even a USB key won't work. I was thinking of buying an entry-level Wi-Fi router and ...
2
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1answer
8k views

iptables duplicate traffic to another ip

This blog post has a template iptables rule to forward traffic, to and from the router to another ip address. iptables -t mangle -A POSTROUTING \ -d [IP to spy on] \ -j ROUTE –tee –gw ...
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3answers
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Switch or Router for LAN party?

I was wondering, if I want to play games with lots of my friends, without clogging up my house's router's connection (my grandma will be using it at the time), whether I should buy a network switch ...
2
votes
1answer
9k views

DD-WRT: dnsmasq headaches with static hosts

I am using dd-wrt (r23503, for the record) on my new Asus RT-AC56U router. Unfortunately, dnsmasq configuration is giving me nothing but headaches. Here's what I want: DNS queries from the ...
2
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2answers
38k views

How to share PC Internet over Wireless Router on Windows?

I just bought a Wireless Router that has 4 Ethernet LAN Ports and one WAN port. The manual that came along with the Router asks to connect a Broadband (Cable/xDSL) modem to the WAN port. However, I do ...
2
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1answer
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Unable to get access to Router even though internet is working

I'm able to access internet but when I type 192.168.1.1 in the browser address bar, I'm unable to get router access, the page just won't open and I'm not even reaching password screen whereas earlier ...
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5answers
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New laptop with Intel® Dual Band Wireless-AC 3160 has inconsistent wireless connection

So, I got a new Toshiba L50-B-103 (Windows 8.1 64-bit, specs) which comes in with the wireless card indicated in the title, Intel® Dual Band Wireless-AC 3160. I use this computer mainly for gaming, ...
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1answer
121 views

I have 4 Ethernet RJ45 ports which were limited to 200KB per second. How to use all 4 ports to speed up my network connection?

I have 4 Ethernet RJ45 ports under my desk. The speed of those ports were limited to 200KB per second. Is there a way to use all 4 ports to speed up my network connection? What I want is 200KB X 4 = ...
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3answers
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How can I monitor the bandwidth usage of all devices on my local network?

I have a router which doesn't show what speeds each wifi device uses from the WAN. Is there a program or tool which tells me the current upload/download speed on the network of any connected devices? ...
1
vote
1answer
2k views

Is there a program to know internet usage for each computer in a network? [duplicate]

Possible Duplicate: How can I monitor internet usage in my network? Monitor bandwidth on personal network I would like to know if there is a program which can, at the end of the day, tell ...
14
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2answers
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Does the order of entries in the routing table matter?

Does the routing order matter: > route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 123.x.x.151 0.0.0.0 255.255.255.255 UH ...
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4answers
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How to get wireless coverage over my whole house? [duplicate]

Possible Duplicate: What’s the best way to increase the range of my 802.11g router? My wireless router does not cover my whole house... Can I do something maybe with multiple routers, ...
5
votes
2answers
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Can't get IP on Windows 7 after extensive troubleshooting

My Windows 7 system is not able to pull an IP from my router's DHCP. This just started a few days ago, and I've done quite a bit of troubleshooting. Here's what I've tried in roughly chronological ...
5
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4answers
9k views

1 modem, 2 routers, 2 different networks

Setup: ISP + + --------------------- ----------------------------------------- + | Internet Modem | | Router 1 | + | | | ...
5
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3answers
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Why is D-Link DIR-825 not accepting a MAC address?

I am trying to reserve an IP address for my desktop PC in a DIR-825 and when I type in all the details and press the Save button it tells me that the MAC address is invalid. My MAC address looks ...
5
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1answer
3k views

Wireless router with repeater setup

I have 2 netgear routers "WGR614 v6" and "WNR2000". How to set these up (one as a repeater) to get wireless access throughout my large house?
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7answers
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How to assign a static IP with a linksys WRT54G2?

For all my googleing it appears the best you can do is tell your computer not to use DHCP; I cannot find a way to do this at the Access Point level. EDIT: This is not for port forwarding. This is ...
3
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3answers
3k views

Slow Internet speed when HomePlug combined with router

I'm using HomePlug AV2 600 devices to connect upstairs with downstairs (router is downstairs). A check with iperf shows bandwidth of ~100Mbps, and data transferred on the local network from downstairs ...
3
votes
1answer
3k views

Home network with two routers and just one Wifi

I know it is a pretty lame question, but I am not a pro in networking, so I will still ask it. And I will try to explain details where possible. I want to create the following setup: Phone line is ...
3
votes
2answers
955 views

Port forwarding in D-LINK DIR-524 router

I have Tomcat installed and I want to access it via internet. I can access it locally via localhost:8080/appname, but not from internet via http://externalip:8080/appname. I have configured my D-LINK ...