For questions on connecting devices together so that they can communicate with each other, as well as on networking equipment such as routers and switches.

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350 views

Diagnosing an Internet Radio's network problems

I bought an Internet radio: a box with speakers, built-in CD player and FM tuner, Ethernet connector, WiFi antenna etc. It's a new model, released about 6 months ago. When I try to set it up, ...
17
votes
2answers
702 views

What is a hostname?

I'm setting up a Fedora 15 box in my local network. It's going to have Internet access and share media stuff like photos. In one step of the installation process it asks for "hostname", what could ...
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3answers
1k views

Access home network via internet

At home I have a little network. It is mostly wireless componentes hanging together. I have a wireless router and a Time Capsule hanging from it. I would like to be able to connect my Windows pc to my ...
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1answer
661 views

eth1 ethernet adapter stopped loading in Ubuntu

I have had a working setup for 3 weeks which suddenly stopped working this morning. I can't identify what changed. I have two network interfaces on my main (Ubuntu 10.10) PC; eth0 is an ethernet card ...
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2answers
6k views

Theory regarding MAC and IP address in network packet and frame content?

Okay, network theory and protocol questions for you guys: Assuming a router is using NAT, is a device's MAC address every actually exposed to the Internet? Or, does the router transmogrify (wow, ...
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4answers
2k views

TCP/IP network over USB

I have a Ethernet cord with a forked end, one connector is USB, the other normal CAT5 (and the other normal CAT5). I'm trying to get a Windows 7 laptop that has a broken NIC connected to the internet ...
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2answers
1k views

HomePlug units on different ring circuits?

Can I connect two HomePlug units to two different ring circuits in the same house, and expect them to be able to talk to one another? Both circuits terminate at the same consumer unit.
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2answers
1k views

Configure Fedora 14 server to have two networks

I have a server running Fedora 14 on a local subnet and configured with a static IP address. It communicates to other devices on that subnet through a switch. I would like to connect this server to a ...
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2answers
9k views

How do I check which process is using port 1099?

From my java application, it gives me an error like this: I am using Windows XP. Could anyone give me any recommendations as how to figure out which process is using port 1099? My firewall is off ...
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0answers
232 views

Internal network speed deterioration

I am having internal network speed issues on my network. The Server (Windows 2008 R2) has two network cards. One provides 802.1x authentication to the outside world. The second, shares this using ICS ...
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2answers
1k views

What is best lan network monitoring tool? [duplicate]

Possible Duplicate: Monitor all and any internet traffic from my home PC - what should I use? What is best lan network monitoring tool?
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2answers
1k views

Windows 7 - ICS - Xbox360

I am trying to connect my Xbox 360 to the Internet through ICS using my laptop. I have done this a few days ago using the exact same hardware(so no hardware problems) The laptop can browse the ...
3
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2answers
887 views

Is my ethernet port broken?

Im on a macbook (black, model 4,1), and it seems my ethernet doesn't work. When I plug in the cable, System Preferences > Network says: This suggest that the ethernet card is at least partially ...
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7answers
881 views

How do I get more information on a potential network freeloader?

I have a home network set up, complete with a relatively good password. I'm in Mac OS X 10.6 (Snow Leopard) and have been noticing, on occasion, a computer showing up in my Finder's Shared section, ...
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2answers
790 views

How to extend the range of a wifi router using another router?

I dont want to buy a signal booster because on some occasions I would like to use the router independently too. But is it possible for 1 router to relay the wireless signals of another router ?
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2answers
417 views

How to understand these download speeds?

In uTorrent when downloading something I see speed around 200 kB/s, however when I did a speed test I got these results where the download speed shows 1.81Mb/s. Can you explain me the differences in ...
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1answer
2k views

How to remove a ghost connection in the task manager?

After disabling most of my connections (all except one actually) I am surprised to go to the task manager, network tab and see two connections there. Picture of the connections in control panel: ...
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2answers
34k views

How do I access files on a Mac OS X Server under Windows?

I'm trying to connect to a server at work which is run on a Mac but I have a PC (windows 7) at home. I have path to connect in the format of afp://server.com/files. Is there a client that I need ...
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1answer
33 views

Name a Windows app that will open-up the internet connection of a remote Windows machine so that I can browse as the remote from my home office?

I need the following set-up for some app testing. I would like to use the connection of a remote Windows machine from home. I've been looking for some kind of tunnelling app for Windows that would ...
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2answers
2k views

Windows 7 can't reconnect network drives on startup

I have this annoying problem that Windows 7 won't reconnect to my network drives on startup. The shares are on an Ubuntu machine. I've tried every possible solution I've found: Enable password on ...
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1answer
517 views

Network connection does not get disconnected on pressing the disconnect button

Most of times, it happens that I connect my computer to broadband and then i am unable to disconnect it through connection wizard in windows 7. probably this is happening due to some fault in my ...
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votes
4answers
726 views

Can a file being copied over my LAN be sniffed?

I'd like to know if a file (PDF, JPG, or whatever) that I copy with .NET code between two computers in my LAN can be easily sniffed and obtained. If so, what would it take to do it? How trivial would ...
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1answer
418 views

Why is 192.168.1.0 needed in route table?

My home network is configured as follows: Computer -- Route -- Internet If I run route on my computer, I see ~ route -n Kernel IP routing table Destination Gateway Genmask ...
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1answer
624 views

Setting 3 routers with GNS3

I have three routers in GNS3, each router connected to first router forming like this, /\ I am using class B address 142.55.0.0 with subnet mask 255.255.255.0 to configure the network. Moreover, I ...
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3answers
538 views

Where in my network should I set DNS servers for the best performance?

I have a DSL modem, a router, and a Windows machine. Each piece of equipment can set the DNS server IP addresses or be set to automatic. Where/how should the DNS servers be set for best performance? ...
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1answer
1k views

iptables simulator [closed]

Looking for software under any OS in order to simulate IP table rules, then deploy to real system.
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1answer
96 views

Hosting and accessing my server behind a router?

I'm testing a network library called enet. When I make connections on port 1720 using 192.168. IPs, my laptop (client) connects to my PC (host) no problem. When I connect my PC with PPPOE and use the ...
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1answer
6k views

Alert when someone connects to my PC

I'm sharing various folders on my Windows 7 PC. When I go to the Computer Management section, I can see if there are any open sessions in my shared folder. When I connect to the PC from another ...
3
votes
2answers
576 views

MacBook Pro not obtaining IP address after replacing logic board

I just got my MacBook Pro back today from having the logic board replaced. While in the Apple store the Internet worked ok. I got home and it was able to connect to my WiFi, but could not obtain an ...
13
votes
6answers
16k views

Why is my router assigning the wrong address via DHCP

I have a WRT54G router that is set up to serve out addresses via DHCP. It correctly serves up addresses to every other machine on the network, including another PC, my macbook when connected via ...
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0answers
2k views

PING: transmit failed. General failure

I'm getting this error when trying to ping anything. Yesterday all was ok, no new software installed and no any other OS changes. My connection is ADSL router via Ethernet port. Router's indicators ...
2
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0answers
298 views

Can't connect to Windows 2003 Server from WAN via mac RDP client

Question: How to connect to server from WAN? I have no problems connecting from the LAN, that works fine. What I have done: set up port forwarding on router for port 3389, and it points at the ...
5
votes
2answers
8k views

What can cause auto-negotiation to fail on network?

Imagine you have both computer with a NIC that do gigabit with a router that do gigabit. What can cause auto-negotiation to fail on network ? (with proof if possible)
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1answer
288 views

Wake-on-LAN WITHIN network, is this possible without router tweaking?

I did a bit of searching around, and it's possible that I didn't understand what I was reading, but I didn't see anything all that relevant. At work, we've just been asked to shut down our desktops ...
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3answers
5k views

Interpret Wireshark Captures

I am troubleshooting wireless connectivity problem in my home network. My Thinkpad X200 laptop which use Intel Wifi Link 5100 AGN is not able to surf the internet stably. Sometimes it works, but most ...
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5answers
117 views

Can't go over 10-12MBytes/sec in my network

I have both computers on Gigabit NIC, a router with gigabit ports.. and a Cat5 wire between them. When i transfer a file from the computer 1 to computer 2 i can't go further than 10-12 MBytes per ...
8
votes
1answer
14k views

On Windows, how to determine route for IP destination?

How can I determine the IP route taken for a specific IP destination (without looking at "route print" and figuring it out manually)? In OS X there's route get 1.2.34 and in Linux there's /sbin/ip ...
-1
votes
1answer
786 views

Convert phone line to Ethernet signal

I have DSL which comes into my house through the phone line. I then have a modem that it plugs into which handles connecting to the remote ISP. The modem has then several eithernet ports that can be ...
0
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1answer
151 views

After auto secure no RIP updates sent

I was configuring/testing a Cisco router (sorry, I don't know the model since I was using NETLAB), and I had RIPv2 updates propagating/updating correctly. I then used the auto secure command to harden ...
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2answers
716 views

My printer sharing in windows 7 has stopped

I have a wireless home network with 2 Windows 7 machines. I have created a homegroup which they are both part of. I shared the printer from the desktop and some files, and this all worked fine for ...
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2answers
2k views

Can I use two network connections at the same time in Windows XP?

I'm using my work computer with access to all my work stuff (database, apps, mail...) and I have limited Internet connection, with some blocked sites. Fortunately, I have my Android device which I ...
0
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1answer
3k views

How to configure wired router? [closed]

I had got a internet connection from ISP. The etho mode is 10 mbps half duplex. i have a router of dlink DES-1008D (wired switch ). I want to configure a home wired network so I can connect my ...
2
votes
2answers
1k views

How to share a 3G connection through Ubuntu to Windows?

I have a laptop with Ubuntu 10.10 installed and internet connection through a 3G modem. I set up a wireless network on Ubuntu, set up its IP to 192.168.0.1, netmask 255.255.255.0 and gateway ...
0
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0answers
5k views

Tool to map network cabling between patch panels and switches

I'm planning a switch from the spaghetti wiring of my current networking rack to an organized cut-to-length system. I'd really like to plan ahead as much as possible. The best way I can imagine doing ...
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1answer
255 views

Internet on Ubuntu Virtualbox without ICS?

is it possible to get internet on my Ubuntu Virtualbox without activating ICS on my Windows XP host? Best, T EDIT: I think it is not possible on my machine due to network policies...
0
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1answer
84 views

Limit scope of Network Adapters?

Is it possible for me to limit the scope of my network adapters? The situation is this: I have an active LAN connection, AND I'm tethering my phone. Both have internet access, but only the LAN ...
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1answer
91 views

Is there a driver for a hub?

Is there a driver for a hub/switch? So that I can control the flow of data from the other computer that currently uses bandwidth, so that I could get higher bandwidth.
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4answers
2k views

What kind of tools exist that can change the IP source address of an IP packet?

I'm looking for a tool for Linux or Windows that modifies an IP header, to be precise the IP source address. I know it's impossible to get the answer to such a packet since you do not own the IP and ...
3
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3answers
2k views

Different network classes in the same physical network

Imagine one small network with one switch (or hub) and, say, 10 users. Is it possible that 5 of them would be in the 192.168.1.0/24 network and the rest 5 be in 192.168.2.0/24 network? Would there ...
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3answers
591 views

How can I set up a Local Area Network without a router?

I have a reliance bandwidth connection and I want to set a local area network without using a router. How can I do this?