The tcpip tag has no wiki summary.
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19 views
Router/modem TG580v2 giving weird results
In my setup, I have the Thomson's TG580v2 router/modem, my PC connected to it via cable, and AppleTV, iPad and iPhone connected wirelessly.
First issue: AppleTV can't find my PC unless it is ...
0
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2answers
56 views
How to kill a particular tcp connection in windows?
On Linux we can kill an Established TCP Connection using tcpkill command.
For example, to drop all connection to/from a particular IP:
tcpkill host ipaddr
Or similary to kill all connection ...
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3answers
58 views
Uninstall TCP/IP Windows XP (uninstall is greyed out)
A laptop displays "aquiring network address" continuously for both wired and wireless network connections. TCP/IP is set to obtain an IP address automatically, and use an automatic DNS address. DHCP ...
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0answers
78 views
Assign IP address to a Virtual Printer
Is it possible to assign an IP to a virtual PDF Printer? Is there any Virtual printer software that automatically can do this?
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1answer
77 views
Windows 7 does not give a warning when subnet on a network with DHCP conflicts with one of the existing static subnets on another adapter
On the client-side, i have a loopback adapter at 192.168.1.1, with a 255.255.255.0 mask. I also have a wireless connection that does not work when the loopback adapter is enabled. Would it make ...
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3answers
62 views
Function of Routers as LAN?
Here's a quote from TCP/IP First Step - Book
Router's role is to figure out what to do with IP packets that it
receives. One thing routers can't generally do is function as a LAN.
They can ...
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2answers
41 views
How do I test the maximum TCP/IP transfer rates of my computer?
In Delphi, I am writing client software for open source message brokers, and would like the transfer rates with a realistic upper limit of what can be achieved on my local computer, or between my ...
2
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2answers
114 views
Is my ISP blocking the ports 5050 and 6060
I want to find out whether or not my ISP is blocking the ports 5050 and 6060 which I need for my voip software on my iPhone. I'm using a 3G stick with a prepaid plan, and I'm using the internet ...
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2answers
58 views
Can't find wireless AP ip after changing router IP/LAN settings
I have a modem/router (Netgear dg834) and a wireless access point (Netgear wg602), the AP is directly connected to the router.
My old working configuration was:
router ip: 192.168.0.1
access point ...
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2answers
91 views
TCP Window Scale
I am searching that, how can two sides determine which scale factor will be using? In syn packets we can give a scale factor and than when two sides have the any scale factor, we can understand that ...
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1answer
85 views
Which free software can convert Serial to Ethernet?
I'm using Serial over Ethernet, but it's not free. Is there any free software that can do the same thing?
3
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1answer
61 views
Why is the DNS setting part of Windows TCP/IP setting dialog?
The DNS servers setting has been part of the Windows TCP/IP setting dialog since the earliest version of Windows as far as I can remember (Windows 95). However, a host may have multiple network ...
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1answer
43 views
Determining cause of TCP/IP connect issue
I need HTTPS access to the host ws.betaqxl.com, but connect fails:
:: curl -k -v https://ws.betaqxl.com
* About to connect() to ws.betaqxl.com port 443 (#0)
* Trying 91.204.81.183... Timed out
* ...
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2answers
145 views
On the Performance of TCP implementations of Linux and Windows
As I understand the implementation of TCP stack in windows and Linux are different. Windows uses a congestion control algorithm known as the TCP Reno while Linux uses Cubic.
How do the 2 protocols ...
2
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1answer
37 views
TCP Throughput testing tools with ability to rate-limit?
I'm looking for test software that can generate test streams with the TCP/IP protocol, but limit the rate of the test data. For example, if using 100Mbps Ethernet, I would like to be able to generate ...
3
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1answer
82 views
Where do I find the TCP/IP stack in Process Explorer on Windows 7?
I was wondering, if the TCP/IP stack is part of the kernel or running as a service? Where do I find the TCP/IP stack in sysinternals ProcExp?
5
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1answer
60 views
If a major telco line is cut to a region of the world, is the “Internet” still available for sites served from within that region?
Can the Internet work independently within various regions of the world or are there safeguards in place that take down portions of the Internet-network (yes, I see the redundancy) when a major telco ...
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0answers
55 views
TCP/IP optimization in XP and higher? [closed]
I heard TCP/IP settings were just optimized for 10/100 LAN. Would TCP/IP optimization for broadband like cable make any difference to performance?
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2answers
95 views
Three way handshake conundrum
I am attempting to understand the three way handshake however have difficuly understanding how this applies to a real-world
scenario. For example if I am using a web browser such as Mozilla Firefox ...
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1answer
63 views
Can't access HTTP server, but ping works in LAN
I encounter a problem when configure the connection. My computer resides in a LAN, I want to assign it a static IP address.
Thus with the help of port mapping on the router, I will be able to access ...
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1answer
60 views
Windows connection limit
Windows XP is said to have a connection limit. There are some patches that increase this limit to 100 or higher. I was just wondering if my download speed (from torrents, etc.) or number of ...
0
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1answer
32 views
LAN server emulator application
I am looking for a LAN server emulator application capable of doing the following:
Can connect to it from another application via TCP/IP
Can send some binary data to my applications
Of course I ...
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1answer
123 views
How TCP/IP works, step-by-step [closed]
In early days, I "googled" looking for a detailed guide/manual on How TCP/IP works; specially data flow; By example, What happens when I type "http://superuser.com" in web browser and it's receive ...
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1answer
39 views
TCP/IP Drivers for QNX 4.2
Does anyone have, or know where I can get my hands on TCP/IP Drivers for QNX 4.2
qnx.com wants ~ $400 for the drivers.. I'm hoping someone has written their own or knows of some good free ones.
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1answer
666 views
How to change TCP “time wait” delay in Windows 7 / 2008 Server?
Windows Server 2003 "offers two methods of controlling TIME-WAIT behavior."
The TcpTimedWaitDelay registry value under the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters ...
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1answer
100 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 ...
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1answer
45 views
Opening multiple web links causes pages to 404 or timeout
I'm using chrome/firefox on windows 7, on fiber, at the office. When browsing the web and opening multiple concurrent pages some of them will 404, timeout, or hang. This doesn't seem to happen to ...
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5answers
853 views
Does Windows XP only allow 10 inbound TCP/IP connections at any one time?
I tried to connect 40 clients to a webservice that is on Windows XP and I get no connection.
Are the inbound TCP/IP connections on Windows XP limited to 10 at any one time?
3
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1answer
150 views
Detect changes to routing table or address resolution protocol on Windows 7
On two different Win7 PCs we're having a very specific problem where connecting a device which uses a RNDIS driver sometimes disrupts the PC's network adapter connection (we detect this because we ...
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0answers
40 views
How *NAT* was Implemented in Home Based Routers? [closed]
Different Types of Home-Based Routers Exist, and those routers provide NAT Feature as well e.g; and most of them are Port Restricted.
Q-1 : What kind of Base Softwares Manufactures use to develop NAT ...
0
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1answer
99 views
Random BSOD, even when the computer idles
I get a random BSOD, even when the computer idles.
Already tried:
memtest - ok
scandisk - ok
netsh int ip reset
Winsock fix.
tcpip.sys+2c13e 21.06.2011 15:21:00 DRIVER_IRQL_NOT_LESS_OR_EQUAL
...
2
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3answers
177 views
SQL Server Ports
The Microsoft website states
The firewall must be configured to permit port 1433 incoming (or the port numbers that SQL Server listens to on TCP/IP), and ports 1024 to 65535 outgoing.
Does this ...
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1answer
241 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?
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6answers
145 views
TCP segment or packet
Is TCP segment is not part of TCP packet?
Here's what I've read,
A segment is a piece of application
data chopped into a transportable size
by TCP and wrapped with a TCP header
Isn't TCP ...
2
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1answer
62 views
TCP/IP for windows and unix
Are the protocol implementations in TCP/IP same for all platforms or is there a specific requirement for each platform? I have this question when I read Windows and UNIX use different functions to ...
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0answers
425 views
why does my time warner cable modem connection enter dead period states every 20 mins?
My wifi connection (from my MacBook running Snow Leopard) to a Time Warrner cabel model and router has a recurring connection problem. Every 20 minutes or so it will enter a "dead state" where no ...
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2answers
163 views
How to keep a static network local IP for all the connected machines, and still dynamically assign all the incoming ones?
I have read the manual and could find no word on this, so I'm asking here.
I have a couple Macs on a wireless network, this router model: http://homesupport.cisco.com/en-us/wireless/lbc/WRT54GL
Now, ...
2
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3answers
217 views
What are the other computer communication protocols other than TCP/IP?
What are the other computer communication protocols except for TCP/IP? I know about only this and in interview they asked me about Can two PC's communicate without TCP/IP protocol suite and I did not ...
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1answer
408 views
Why has Microsoft never implemented a loopback interface in Windows?
First things first: I know that you can install a sort-of-a Loopback Adapter in Windows.
But what I really found strange is that there exists nothing like lo on Windows. At all. From The missing ...
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1answer
421 views
network will not work properly after having run TCP optimizer, but safe mode settings work perfectly. how to restore?
I was experiencing some issues with my connection while playing online and I tried to optimize it by running TCP optimizer on my PC (Windows 7 64bit professional). I thought maybe the situation could ...
0
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1answer
90 views
is there a single-end available bandwidth measurement tool
i am doing my graduation thesis,currently i need a tool that is capable of measuring the
available bandwidth between client and servers.i have googled that, the link
...
2
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1answer
348 views
Adding a second network card (dedicated connection to a network music streaming device) to a PC already on a home wireless network
I have a pretty normal home wireless network with a combined adsl modem/router which all my (Windows XP/Vista) computers use DHCP to connect wirelessly to and share resources among each other in a ...
0
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2answers
152 views
How is it called when listening(connecting) two sockets and exchanging data between them?
There is more then one way to do simple TCP proxy.
socat tcp-l:1234 tcp:1.2.3.4:1234 is "relay" or "port forwarder" (if I am right).
How to call socat tcp-l:1234 tcp-l:1235 and socat ...
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0answers
179 views
TCPMon correct configuration
I use SoapUI(3.6.1) application to mock web services.
this error returned:
org.apache.axiom.soap.SOAPProcessingException: First Element must contain the local name, Envelope , but found html
Look ...
1
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1answer
63 views
Is it possible for a programmer to know the network capacity?
I am interested in knowing the maximum bandwith of our network. Can I use some freely downloadable utility or tool to find out if my intranet is 100BASET or 1000BASET, etc. or what is the maximum ...
3
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1answer
42 views
Is there a way to know WHEN a connection has been established?
I'm working with mobile IPv6 and was dealing with lots of zombie connections. I set keepAlive to true and want to test whether old connections are being discarded.
I'm using lsof to list the process ...
2
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2answers
248 views
Using localhost TCP/IP communication in a program - always safe?
I have an application which is separated to several parts (processes) communicating over TCP/IP, using a pre-defined port on localhost.
Is this always safe? Can some kind of a firewall (corporate, ...
0
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3answers
239 views
Windows Vista: TCP/IP stack is smashed, how to reinstall the LAN-Devices?
the TCP/IP stack is smashed, thats why no LAN-Connections are running. I want to download the LAN drivers from another computer and uninstall and reinstall the LAN devices on this system. Hopefully ...
1
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1answer
2k views
TCP segment of a reassembled PDU
In wireshark sometimes I see this:
478195 5738.896809 192.168.1.79 61.213.44.124 TCP [TCP segment of a reassembled PDU]
What is a PDU? Was it reassembled? What does this mean?
3
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1answer
851 views
Is there a hard limit of 65536 open TCP connections per IP address on linux?
Is there a hard limit of 65536 open TCP connections per IP address on linux?
I read somewhere that there was, but someone is asking for confirmation and i just can't find it.
I seem to remember it ...
