Transmission Control Protocol (TCP) and Internet Protocol (IP) provide end-to-end connectivity specifying how data should be formatted, addressed, transmitted, routed and received at the destination.

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2answers
6k views

Is your MAC address revealed when you hit up a website?

When you hit up a site, such as cnn.com, does the TCP/IP packet contain the MAC address of your network card? Could cnn.com theoretically record my MAC address?
30
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5answers
16k views

Why are home networks prefixed with 192.168?

Why are home networks prefixed with 192.168 ? Why those numbers? For some historical reasons?
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3answers
187k views

How do I reinstall the TCP/IP protocol driver on Windows 7?

How do I reinstall the TCP/IP protocol driver on Windows 7?
111
votes
3answers
230k views

What are CLOSE_WAIT and TIME_WAIT states?

When I do netstat -a on my Windows machine, I get a listing of the ports with one of the four states: LISTENING CLOSE_WAIT TIME_WAIT ESTABLISHED What do CLOSE_WAIT and TIME_WAIT mean/indicate?
4
votes
5answers
2k views

Editing the hosts file

I'm looking to edit the Windows TCP/IP hosts file (at c:\windows\system32\drivers\etc\hosts). I'm wondering, what is the best way to do this (on Windows XP)? Let's say that I want to redirect, say, ...
1
vote
3answers
2k views

How do you block specific urls and not entire domain

I want block a URL on specific computer, in this case www.google.com/reader but i not want to block the entire domain of google. It is for my work machine as I don't seem to have enough self control ...
30
votes
3answers
88k views

Why is Windows' default IP address 169.xx.xx.xx?

My Windows system got an 169.xx.xx.xx IP address the other day, and I fixed the issue, but why did Microsoft chose this address as the default? Why not 1.xx.xx.xx or 255.xx.xx.xx? Did one guy at ...
52
votes
7answers
83k views

Is there any benefit to using IPv6 on my home network?

I know that IPv6 is the future because there is only 4 billion IPv4 address, but on a home network, you are not going to have 4 billion users. So are there any other benefits that would make IPv6 on a ...
0
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1answer
363 views

my tcpdump always filters packets?

I've been using tcpdump for about a month now, and recently, it has stopped capturing any packets that were not sent to or from the computer running tcpdump. I've stripped down my command to just: ...
0
votes
1answer
652 views

How to know which Windows application does listen on a particular TCP port? [duplicate]

I have been using a personal HTTP proxy to remove ads and boost caching for a while but have then noticed that my Firefox still works when the proxy application is shut down (while the browser is ...
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votes
2answers
8k views

What layer of the TCP/IP network does ARP belong to? [closed]

I'm working my way through the Sams teach yourself TCP/IP book and it say's that the Address Resolution Protocol belongs at the Internet layer. Is this true? Other sources claim it is a Network ...
14
votes
5answers
116k views

How to tell what MTU is being used in Windows XP

I'm suffering from a really weird problem where I randomly get "The connection to the server was reset" errors when trying to access web pages (HTTP error 12031 according to the Windows network ...
6
votes
4answers
29k views

Any free application to redirect serial communication to TCP/IP? [closed]

Please can anyone suggest a free application which creates virtual serial ports and any traffic on that port is redirected to given TCP/IP address?
6
votes
4answers
21k views

what is TCP Half Open Connection and TCP half closed connection

I am trying to understand what is the difference between TCP Half Open Connection and TCP Half closed connection can any one tell what exactly are they?
7
votes
3answers
4k views

How to mitigate BufferBloat on an ADSL connection?

I've had interesting networking experience before. Before I moved, I've had a VDSL connection, with 3mb uplink. (The down speed was around 30mb but is not relevant at this moment). Whenever I ...
4
votes
4answers
8k views

Windows keeps using a preferred DNS server?

I have trouble using Panera WiFi, and I finally tracked down the problem: Every time I reboot, Windows resets my TCP/IP settings for my wireless adapter to use a specific DNS server, instead of ...
3
votes
1answer
190 views

What happens when I terminate a process and the socket send buffer is not empty?

In Windows (and probably in other operating systems), if a process has a TCP connection with another process on another machine, and then I terminate the process, an RST packet will be sent to the ...
2
votes
2answers
183 views

What are the detailed OSI model steps involved in connecting to a website?

What are the detailed steps involved in connecting to a website, such as superuser.com home page using a newly connected computer (http, and nothing cached)? What is actually happening in the ...
1
vote
2answers
3k views

utorrent stops internet traffic

this is a new problem for me, and I really don't know how to fix it. From time to time i'm using uTorrent for file transfers, but in the past month when i start utorrent, i cannot navigate anymore ...
1
vote
4answers
213 views

What layer of the TCP/IP do MAC addresses and IP addresses belong to?

Can anyone also tell me why we have 2 layered models(OSI AND TCP/IP)? Just having a bit of trouble with the question above. Can anyone kindly help?
2
votes
2answers
678 views

Force command-line tool to use different interface?

I have a service which I want to run over eth1. But all my other traffic still needs to run over eth0. Is it possible to force a command-line tool or other application to use the non default ...
2
votes
4answers
20k views

Can't find a wireless access point's IP address after changing router IP/LAN settings

I have a modem/router, Netgear DG834, and a wireless access point (AP), Netgear WG602. The AP is directly connected to the router. My old working configuration was: Router IP address : 192.168....
1
vote
3answers
2k views

Switching between DNS addresses easily

Sometimes I need to use preferred and alternate DNS server addresses, and sometimes I need Windows to obtain it automatically. The common approach to switch between those addresses is: Right click ...
1
vote
4answers
5k views

Disable access to TCP/IP and DNS Network Settings on Windows 7

here's my question: i have a desktop pc Windows 7 powered with two accounts with administrative rights. One of those is used by my brother. I study abroad so i need to be able to connect to my "home"...
1
vote
1answer
8k views

Not able to ping remote server

I am getting Request Time Out on pinging a remote server. I am on my laptop connected to the this server via Remote Desktop Connection. tried but still not able to ping it. I just want to ellaborate ...
1
vote
1answer
593 views

VMware Workstation isolating guest to a separate internet

I have N1 and N2 network. The host has two ethernet adapters E1 and E2. The host is connected to N1 through E1, but I want to connect a guest to N2, and I do not want N2 to affect the host by any ...
1
vote
5answers
375 views

Only browser causes BSOD — all other TCP operations okay

A few weeks ago I started getting BSODs -- mostly in TCPIP.SYS, but occassionally Memory Parity. I had some viruses which are now all removed. I got new memory -- didn't fix it. Over time I was ...
0
votes
3answers
694 views

Need to track total data transfer using Windows 7 [duplicate]

Possible Duplicate: Software to report internet traffic for home user I'm looking for a utility that can run in Win 7 and tell me how much data transfer my machine does per month. Any ...
0
votes
1answer
1k views

DatabasePath Registry Entry Not Working in Windows 7

I’ve set the HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DatabasePath registry entry in Windows XP and it works as expected; the system loads and uses the HOSTS file in the directory I’ve ...