66
votes
9answers
5k views

“Turn off router for 10 seconds” - Quantifiable? [duplicate]

Is there any quantifiable evidence to support power cycling routers for 10 seconds or any arbitrary amount of time, instead of just unplugging and plugging back in?This is related to troubleshooting ...
58
votes
2answers
12k views

If my Wi-Fi speed is 64 Mbit/s why do I get nowhere near it?

I was transferring a file from one computer to another. When my two computers were far from the router I was getting 1 megabyte per second, but when I had my laptop next to the router I was ...
48
votes
6answers
9k views

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 ...
45
votes
9answers
6k views

Why are subnet-masks relevant for the individual computer on the network?

I understand how subnet-masks are used to divide a network into sub-networks, but, why does every computer in the network need to know the subnet-mask and not just the router? I could understand it, ...
43
votes
4answers
9k views

How does a router obtain its IP address?

So let's assume I connect a secondary router to my first. An Ethernet cable from one of the LAN ports to the secondary router's WAN. Now, how does my secondary router actual obtain its IP address? ...
38
votes
4answers
6k views

How should I connect 7 devices to a switch module with four ethernet interfaces? Is there a preferred topology?

I have a router/switch with four switch ports on the back, to which I need to connect seven devices.Is there a reason to prefer one or other of the below topologies, or would a completely different ...
38
votes
5answers
3k views

What keeps you from changing your public IP address and wreaking havok?

An interesting question was asked of me and I did not know what to answer. So I'll ask here.Let's say I subscribed to an ISP and I'm using cable internet access. The ISP gives me a public IP address ...
34
votes
5answers
4k views

What stops an internet router from sniffing my traffic?

Packets travel through internetworks, and take many routes through internet routers. On each route that forwards traffic to another until reaching the ultimate destination, what stops them from ...
32
votes
10answers
28k views

Can I make two wireless routers communicate using the wireless?

I want to make a setup like this:cable modem <-cable-> wireless router 1 <-wireless-> wireless router 2 in another room <-cables-> PCs in another roomBasically, I want to extend my ...
32
votes
2answers
66k views

Do different positions of the antenna on a wireless router make any difference?

Often, the antenna of a wireless router can be moved in many directions. Does it make a difference as to which way it points? Should it point toward the device(s) using it? Should multiple antennas ...
31
votes
6answers
151k views

Why does just splitting an Ethernet cable not work?

I thought the Ethernet is logically a one-line communication bus (for argument's sake, I am excluding hubs). All machines attached on the bus hears the same signals and the machines themselves try to ...
31
votes
13answers
164k views

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. ...
31
votes
2answers
50k views

What is the difference between ARP binding and DHCP address reservation?

In my TL-WR1043ND I have these functionalities and both of them pair an IP address to a MAC address. What is the difference?I read that ARP is for security reasons, others say it is for Wake-on-LAN. ...
27
votes
4answers
12k views

Two Routers are fighting each other on LAN

My apartment is quite large and most rooms have several walls, meaning Wifi signals drop easily.To combat this I found a spare DSL Router I had previously and placed that in the Kitchen and ...
27
votes
2answers
20k views

Does All LAN Traffic Travel Through A Router

I have a very simple question: if I have a router (DHCP enabled - leasing IP addresses between 192.168.0.2 and 192.168.0.254) with a switch plugged in, and I plug two computers into the switch, will ...

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