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0
votes
0answers
33 views

CRC Download Errors

I am using a DSL 3Mbit line from my service provider *. I connect to it with a WLAN router. Recently I get a whole lot of CRC errors when I am downloading (For instance when using JDownloader but ...
0
votes
1answer
86 views

How exactly do two powerline adapters search & connect to each other?

Could someone please explain how exactly two powerline adapters "search" and "connect to" each other? (As far as I know, the manual pairing of two adapters is only necessary to exchange the ...
1
vote
2answers
84 views

How to download a file through Telnet using HTTP request? [closed]

I need to download a file, for example: http://gensho.acc.umu.se/debian-cd/7.5.0/amd64/iso-dvd/debian-7.5.0-amd64-DVD-1.iso with usage of Telnet and HTTP request. How can I do that?
1
vote
2answers
213 views

Many sites claim they aren't capable of viewing subscribers' passwords. How does this work? Is it mandatory? [closed]

Many sites claim they aren’t capable of viewing subscribers’ passwords. How does this work? Is it mandatory for websites which allow users to log in? Are there any protocols or laws which obliged them ...
0
votes
1answer
24 views

Protocols in Proxy Server Settings

When I set Proxy Server in Internet Option->Connection->LAN Settings (Windows) which protocols does it support in which layers? HTTP, HTTPS, FTP or...? Download Manager also uses this setting?
2
votes
2answers
64 views

LOCAL SERVER and telnet

Finally, after many attempts and days, I managed to connect 2 computers using the telnet client and the telnet server. The reason of so many attempts is because there are no complete guides for these ...
1
vote
3answers
159 views

CANopen to USB?

I have one of these digital pressure trasmitters that outputs a CANopen (CAN-BUS) signal. What is the best way to get the data via a USB port on my computer? Can I just wire the CAN_H and CAN_L to ...
0
votes
1answer
23 views

Do faulty 100mb half-duplex connections flood a subnet with collision traffic?

I'm on a subnet where a lot of machines are falsely getting set to 100 megabit half-duplex connections. Could this potentially slow down other machines on the network that have proper full-duplex ...
2
votes
1answer
96 views

how to see all network requests made by an application [duplicate]

Suppose i have an application running abc.exe, how to see all the network requests made by this application? Wireshark is good to see all the requests from the pc, but is there any filter for requests ...
0
votes
1answer
77 views

GitHub with HTTP protocol

I read that HTTP, aka http://github.com Doesn't work with GitHub anymore However it seems to work for me $ git clone http://github.com/antirez/redis Cloning into 'redis'... remote: Counting ...
0
votes
1answer
54 views

What is the Discard Protocol actually used for?

What is the Discard protocol used for?
15
votes
2answers
6k views

FTPS versus SFTP versus SCP

I would like to know exactly what the difference is between the following protocols: FTPS, SFTP, and SCP. For instance Unix has an scp tool, FileZilla offers FTP and SFTP, whereas JetBrains PhpStorm ...
3
votes
3answers
481 views

Is it possible for a BitTorrent client to give seeding preferences only to leechers who are also seeding?

I'm not very familiar with BitTorrent on a protocol/technological level. Is it possible for clients to prefer seeding (give more bandwidth, or only connect at all) to leechers who are also seeding ...
-1
votes
3answers
29 views

who provides the tcp/ip functionality? [closed]

TCP/IP is a suite of protocols(telnet, ftp, smtp, DNS, RIP etc) ex: DNS is a domain name server which converts the given website address to the ip address and sends to the default gate way for ...
2
votes
4answers
4k views

Custom Protocol Handler not working in Chrome on SSL page

I've successfully created and registered a custom protocol handler in my web application and it's working fine in all browsers. There's the initial warning dialog about launching an external ...
7
votes
1answer
1k views

Using HDMI port as network protocol interface?

I was wondering if it's possible to use the 10.2 Gb/s HDMI port on several computers as a backbone networking interface for a home made cluster? Is there some kind of HDMI switch? Can HDMI transport ...
2
votes
0answers
91 views

Do you know what protocol is this?

I have a H.264 standalone DVR from Hexacctv that streams 4 channels from its cameras. I use SkyVizor NVClient to get streaming video from channels. But I need to be authenticated by the the StandAlone ...
1
vote
1answer
518 views

How does a proxy know where to forward the requests to?

When a proxy receives a connection how does the proxy know where to forward the request to? For example in Java we can set a system property for proxy. So we set the IP of the proxy and the request is ...
0
votes
1answer
150 views

Can gnunet-0.8.1 (2 yrs old) be used and useful?

I've configured and started gnunet-0.8.1-alt1.M51.1 service on my system (the reason I use a more than 2 years old version is that the system is an old installation of ALTLinux 5.1, and I wanted to ...
2
votes
2answers
3k views

Why is my UDP so slow?

I'm using Iperf on two VMs and when using TCP I find the performance is as follows: notroot@ubuntu:~$ iperf -s ------------------------------------------------------------ Server listening on ...
2
votes
0answers
1k views

tcp port numbers reused on wireshark

I used raw socket to build a tcp client program on machine A to reproduce tcp 3-way handshake with a simple regular tcp server on machine B I captured packets on the client host and server host, and ...
0
votes
1answer
88 views

sent packet is different from received packet

I use raw socket to create TCP packets, with focus on the sequence number and TCP flags(SYN, ACK) I used one machine S to send a tcp ACK packet (flag ACK is set to 1) and another machine R to receive ...
14
votes
2answers
1k views

If two devices are emitting a wifi signal in the same frequency at the same time and reach an antenna at the same time, how can the data not overlap?

I mean, I know each packet is sent with a MAC address, but what about streaming? What happen if while the router is receiving one packet, a packet from another device arrives? How can the router ...
0
votes
1answer
590 views

Copying files over home network (windows 7 laptops) is super slow

I have two Windows 7 laptops (one Dell and other Toshiba). I have a shared folder on the toshiba-pc, and both are connected to a wireless router. When I copy a large folder from toshiba-pc to dell-pc, ...
1
vote
2answers
699 views

How does an adsl modem discover the network upon physical setup?

I have some basic knowledge about protocols and the OSI model, i know for example a good deal about how the HTTP works and how FTP works or the diferences between TCP and UDP, but I never studied much ...
4
votes
1answer
117 views

Is there a program that would make it easier to look at how network protocols work?

I'm interested to know more about how certain network protocols work (like SSH or FTP for example). Is there a program that can facilitate connecting to computers on the network and communicating with ...
2
votes
1answer
2k views

How do I figure out if my wireless network has WEP, WPA or WPA2 security via command prompt on Windows XP?

I understand how to check what security protocol my wireless network connection is currently using by going to the Wireless Network Connection window like in the following example but how does one ...
0
votes
2answers
1k views

How to use specific proxy address for specific application in Windows XP?

I have a chat client application. When I connect to internet & chat with other person via that application, the application uses the IP of my ISP to connect to internet & transfers data via ...
3
votes
4answers
399 views

How do Internet (ISP/AS) routers send IP packets to each other

I know how computers in a LAN communicate with each other (all the Ethernet/MAC address/NAT etc stuff), but I wonder, how do Internet routers communicate? Are they connected into some kind of giant ...
2
votes
0answers
56 views

Most network protocols occasionally fail

My Windows 7/64 machine has suddenly started to act funny. Everything will be running fine, when suddenly most network access methods will fail. These things continue to work: Accessing network ...
0
votes
1answer
178 views

Why does Knoppix mess up my internet connection?

I have this problem that when I boot Knoppix on my Windows box, it screws up the internet connection somehow, so Windows cannot get an IP when I reboot back to XP. I use Verizon FIOS. Normally I have ...
4
votes
2answers
258 views

What protocols did the ARPANET use?

The ARPANET is often mentioned as the Internet's precursor. But what protocols did it run with if not TCP/IP?
1
vote
1answer
216 views

Unknown Inbound UTP Packets

I need some help figuring out something. I was looking at my network traffic using Wireshark and I saw a bunch of inbound UTP (uTorrent Transport Protocol) packets to my IP. About 10 different IP's ...
6
votes
1answer
5k views

Chrome doesn’t handle custom protocols correctly

For example, if I enter steam://connect/127.0.0.1 in the Omnibox, it will search for the URL instead of launching the program that handles that protocol. How can Chrome be configured to treat custom ...
1
vote
2answers
367 views

Why is there an interface field in routing table?

Imagine that we have an IP-packet, and we need to figure out which interface it should be sent through. There is an eth0 (for example) corresponding with our packet destination address. But what if ...
1
vote
3answers
100 views

In which network layer is the data located that lets a gateway(using NAT) know which computer a packet is meant for?

Main questions: In which network layer is the data located that lets a gateway(using NAT) know which computer a packet is meant for? Could someone explain how the process works? In explaining the ...
1
vote
3answers
204 views

Why do I not get to the same website when using this IPv4 address instead of the url?

When I capture packets using the packet analyser wireshark while visiting http://en.wikipedia.org/wiki/Hydrogen I can see packets that use the HTTP protocol (e.g.a GET request). My Get request uses 4 ...
1
vote
1answer
12k views

What does `Type: IP (0x0800)` in the Ethernet II part of a ping packet mean?

If I ping to another pc in my network I send a packet that consists out of an ICMP part, a IPv4 part and a Ethernet II part. I can see this using the packet analyser 'wireshark'. Now the Ethernet II ...
0
votes
1answer
277 views

Can two network adapters work in different IP protocols simultaneously?

My laptop has two network adapters, one is wireless and connected wirelessly to a wireless router, another one is wired and connected to a network supported IPv6 with cable. The question is , can I ...
0
votes
1answer
137 views

Implementation of protocols [closed]

I want to know how different protocols are implemented. For instance, take example of TCP/IP. This protocol is used for the transmission of data (if I am right). Now, I want to know how this protocol ...
2
votes
5answers
17k views

How do I limit packet capturing in Wireshark to only a specific protocol?

I would like to listen to HTTP traffic on port 8080. When I start capturing packets in Wireshark, it's flooded by packets using the SSDP protocol on port 1900. I would like to limit the packet ...
1
vote
2answers
913 views

Ethernet a protocol or cable?

Is ethernet a protocol or cable? How it is different from Cat-5 cables? I'm very confused when I hear the term 'ethernet' for a protocol and cables.
3
votes
2answers
21k views

How to download and install IPX on windows 7

From where I can download IPX for windows 7 and how to install it? Thanks alot for your help.
0
votes
2answers
48 views

Sharing internet connection.- Complex

Scenario 1 Desktop , 2 Laptops , one wifi router , one network cable . All computers are on win XP Laptop A and Laptop B are connect to the network of wifi Router, they can access internet. My ...
1
vote
2answers
366 views

What is `gopher` and is it still used?

Reading some rather old computer books, I have seen the gopher protocol mentioned frequently. What is it used for? And, is it still used today?
3
votes
3answers
1k views

What are ports and protocols really?

I hear people talk about ports and protocols (in relation to computer networking), and they often provide analogies for them (for example: "a port is much like a shipping port, it sends and receives ...
2
votes
2answers
236 views

Is the sound quality of wireless earbuds inherently limited? [closed]

There are many different types of devices that emit sounds directly to the ear, ranging from the wired headphones often used by audiophiles —I presume— to the wireless earbuds often used ...
1
vote
0answers
172 views

Allow only HTTP/HTTPS comunication with Agitum Outpost Security Suite Free

Hi I use Agitum Outpost Security Suite Free and I would like allow only HTTP(80) a HTTPS(443) protocols for IN/OUT and also allow local ports for Oracle database, etc. I try use Network Rules -> ...
0
votes
1answer
117 views

IPv4 address to Netmask mapping and Multiple default routes feasibility?

We have, Class Range NetMask Bits Bits hosts# ---------------------------------------------------------- A 0-127 255.0.0.0 8 24 16777216 (i.e. ...
7
votes
4answers
1k views

Is there a good example for acknowledged, connectionless network protocol?

According to what I've read, there are three main connection types in computer networks: Unacknowledged, connectionless (e.g. UDP) Acknowledged, connectionless (e.g. ?) Acknowledged, ...