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Learn All Networking Concept In Easy Way



Learn All Networking Concept like Dynamic Host Configuration Protocol, Ethernet,DNS,Local area network,WAN,Router, Universal Serial Bus, Wide area network,Differences Between Hubs, Switches, and Routers,Capturing LAN Traffic,Install DMS and your 3G Modem



Updated: 2017-09-17T14:26:41.537-07:00

 



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2011-10-30T08:55:10.360-07:00

Its fuller reaches underneath the hammer!
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Set Up Internet Connection Sharing

2011-05-24T07:49:08.837-07:00

  1. 1
    Click Start, and then click Control Panel.

  2. 2
    Click Network and Internet Connections, Click Network Connections.
  3. 3
    Right-click the connection that you use to connect to the Internet.
  4. 4
    Click Properties. Click the Advanced tab.
  5. 5
    Under Internet Connection Sharing, select the Allow other network users to connect through this computer's Internet connection check box.
  6. 6
    If you are sharing a dial-up Internet connection, select the Establish a dial-up connection whenever a computer on my network attempts to access the Internet check box if you want to permit your computer to automatically connect to the Internet.
  7. 7
    Click OK. You receive a message, Click Yes.

On the Client Computer

  1. 1
    Click Start, and then click Control Panel. Click Network and Internet Connections. Click Network Connections.
  2. 2
    Right-click Local Area Connection, and then click Properties.
  3. 3
    Click the General tab, click Internet Protocol (TCP/IP) in the This connection uses the following items list, and then click Properties.
  4. 4
    In the Internet Protocol (TCP/IP) Properties dialog box, click Obtain an IP address automatically (if it is not already selected), and then click OK.
  5. 5
    In the Local Area Connection Properties dialog box, click OK.
  6. 6
    Open your browser to check, if what you did works.
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How to Set up an Ftp Server on XP

2011-05-24T07:43:33.939-07:00

  1. 1
    First, you should start by retrieving your Windows XP CD.

  2. 2
    Next, click the Start button and go to the Control Panel.
  3. 3
    After that, select "Add/Remove Windows Components."
  4. 4
    Select "Internet Information Services" under "Windows Components."
  5. 5
    Click "details" and select the "File Transfer Protocol (FTP)" service. (Remember that this will also automatically select "Common Files" and "Internet Information Services Snap-In.")
  6. 6
    Click OK and follow the instructions for the install Wizard (or you can just push next if you don't feel like reading). Be prepared with your Windows XP CD, because it might prompt you for it if you haven't already installed it. Once it is done, you might have to restart your computer after this.
  7. 7
    After that, all you need to do is just paste the files you want to be public into "C:\INETPUB\FTPROOT." Note that by default, these files are read-only and public. Public meaning that anyone who knows the IP address may download copies from it.
  8. 8
    Now, you need to configure your router's firewall to let FTP traffic through. This can be done through your router's administration menu. Note that this will vary depending on your router.
  9. 9
    After letting your router firewall let FTP connections in, you will have to configure your regular firewall to let FTP connections in through a certain port.
  10. 10
    Finally, after done with everything, you may access your FTP site through your browser. All you need to do is type ftp://xxx.xxx.xxx.xxx/ in the URL where "xxx.xxx.xxx.xxx" is the WAN address of your computer.
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How to Set up Port Forwarding on a Router

2011-05-24T07:41:56.849-07:00

1The first step is to go to your router's "web page" Caution: You'll need your pc connected with a wire, this is called a LAN (Local Area Network) connection.2Open up your web browser, and enter the standard IP (internet protocol) for your router. This is normally: 192.168.1.1 or 192.168.0.1 (check your computer's Default Gateway start > Run > cmd > ipconfig /all) Enter 192.168.1.1 Into your address barIf your router asks for a username and password, the default setting is no username and the password is "admin"on Linksys routers its "admin" for both user and password.on Netgear Routers its "admin" for username and "password" for "password"3 Look for a Tab with a Name Similar to this Look for a tab with a name like, "Port Forwarding" or "Applications and Gaming"4Next, enter the desired ports. If your router asks you whether to open ports for TCP or UDP select both. The Page Should Look Like ThisSome routers offer a from port ___ to port ___, if you only want one port open enter the same number into both blanks.5Next, enter the IP address of the computer you would like the data from that port to be sent to. An IP address is a random number assigned to a computer by a router. ipconfigTo find your IP address, open up the start menu, select "Run" and type in "cmd" This should open the command prompt. Into the command prompt, type "ipconfig" this should tell you your IP address.Pay specific attention to the last three digits, most routers will only ask for these.6Make sure you press the "Save Settings" button, or your changes will not take effect.[...]



How to Set up DHCP on LAN

2011-05-24T07:40:12.292-07:00

  1. 1
    Decide what range of IP addresses you would like to use

  2. 2
    Set the IP address of your computer to 192.168.0.2 with a subnet mask of 255.255.255.0 (an address in the same subnet as the addresses in the pool, but not an address in the pool itself!)
  3. 3
    Download dhcpd32 from http://tftpd32.jounin.net/
  4. 4
    Unzip the file to your computer and run dhcpd32.exe
  5. 5
    Set the "IP pool starting address" to the address you want the first computer to use DHCP to have. (192.168.0.100 if you're not sure!)
  6. 6
    Set the "Size of pool" to a little more than the number of computers and devices you think you'll need on your LAN. (if in doubt, 50 is a nice number)
  7. 7
    Leave the "Boot File" field blank
  8. 8
    If you have a DNS server on your network, or one accessible to the machines on your network, enter it's IP address in the "WINS/DNS Server" box. If you don't, or don't know what it means, leave it blank.
  9. 9
    Set "Mask" to your subnet mask. If you don't know what that is, follow my addressing scheme and set it to 255.255.255.0
  10. 10
    Leave the "Domain Name" and "Additional Option" boxes as they are.
  11. 11
    Press "Save".
  12. 12
    Your DHCP server is now set up!
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How to Spoof a MAC Address

2011-05-24T07:38:00.472-07:00

  1. 1
    Plug in your adapter and install the needed software (drivers).

    Know Your Customer

    Comply with OFAC, FFIEC, gaming regulations using IP Intelligence
    www.quova.com
  2. 2
    Plug in the network cable.
  3. 3
    Go to ControlPanel -> NetworkConnections and select the corresponding connection.
  4. 4
    Right click on the connection icon and select properties.
  5. 5
    Check the text box labeled "Connect using". The name in this text box should be the name of the network adapter you wish to spoof.
  6. 6
    Click the "Configure" button.
  7. 7
    Click the "Advanced" tab.
  8. 8
    From the list of properties in the left, select the one named "NetworkAddress".
  9. 9
    Set the desired value in the textbox in the right.
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How to Use Windows Remote Assistance

2011-05-24T07:36:05.034-07:00

  1. 1
    Make sure that both your computer and your friend's computer is connected to Internet.

  2. 2
    Start the windows messenger by Start->All Programs->Windows messenger.
  3. 3
    Log into it by using your hotmail or msn account.
  4. 4
    Add your friend(whom you are going to assist) in your friends list.
  5. 5
    Select your friend's name by clicking on it.
  6. 6
    See various options such as"Start Web Cam","Send Files" etc..
  7. 7
    Check for the windows remote assistance option and double click on it.
  8. 8
    Now a Remote Assistance window opens displaying your friend's computer screen.
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How to Connect One Router to Another

2011-05-24T07:32:08.051-07:00

  1. 1
    Unplug one of the network connections from your old router.

  2. 2
    Use this open port to connect the old router to the new routers WAN(wide area network) port.
  3. 3
    Connect the computers to the ports on the new router.
  4. 4
    Configure the new router settings to match the old router settings.
  5. 5
    Use IPConfig to check you current IP address
  6. 6
    Use this information to create a static IP on the computers connected to your network.
  7. 7
    Set the Default Gateway to the IP address of the router in which the computer connects.
  8. 8
    Check that all computers can access the internet and "see" each other on the network.
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Configure a Router to Use DHCP

2011-05-24T07:30:21.122-07:00

1Connect to your router (by typing 192.168.0.1 or 192.168.1.1 into the URL bar) and log in. Check your user manual or documentation if you do not know the log-in credientials. 2 Router Setup tab Make sure you are in the Setup -> Basic Setup category.3 DHCP is Disabled Scroll down until you see 'DHCP Server' - if it is disabled, select 'Enable'4 Enable DHCP If you want, you can change the number that the DHCP IP assigning starts. This is optional, and is totally dependant on personal preference.In this picture, the maximum number of DHCP clients is 3. You may need to increase this number according to how many people will need a dynamic IP address on your network. Once the max is reached, no one else can get an address until one expires!5Use the DNS servers provided to you by your ISP, or use the following DNS servers: 205.152.37.254, 205.152.132.235, 205.152.132.23; There are many DNS servers out there. It's best to use your ISP's if possible.6 Don't forget to save! Scroll down and click 'Save Settings'7Open up the network configurations for the computers on your network (Control Panel -> Network Connections -> Local Area Connection or Wireless Connection) and select 'Obtain IP address automatically'[...]



Configure DHCP in Your PC

2011-05-24T07:28:11.840-07:00

  1. 1
    Log into Windows XP with administrator rights. This makes setting up the network for you, and other users, easier as you can make all the necessary changes to settings.

  2. 2
    Look for the Network Neighborhood or My Network Places icon in your desktop. If it is not there, try your Start Menu.
  3. 3
    Right-click the Network Neighborhood/My Network Places icon. A drop-down menu will appear.
  4. 4
    Choose the "Properties" option, generally found at the bottom of the menu.
  5. 5
    Look for an icon named "Local Area Connection". The icon looks like a pair of computer connected by a link. Double-click this icon.
  6. 6
    Click the "General" tab, if it is not already selected. You will see a list of protocols to choose form.
  7. 7
    Scroll down and choose Internet Protocol (TCP/IP), and then click the button that is labeled "Properties".
  8. 8
    Again, click the "General" tab, it it is not alreay selected. You will see two choices:

     
    1. "Obtain an IP address Automatically"
    2. "Use the following IP address..."
  9. 9
    Choose option 1.
  10. 10
    You have effectively configured DHCP for your PC
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Check a Computer Ip Address

2011-05-24T07:24:42.535-07:00

  1. 1
    Go to your start menu and find 'Run'

    (image)

  2. 2
    Inside the box, type the letters 'cmd'

    (image)
  3. 3
    Command prompt should open and be waiting for input.

    (image)
  4. 4
    Type 'ipconfig' and press enter.

    (image)
  5. 5
    It should list not only your computers IP address, but your router's as well.

    (image)
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Chat Using Lan

2011-05-24T07:22:59.108-07:00

  1. Open Notepad and type the following:
    @ echo off
    :A
    Cls
    echo Messenger
    set /p n=User:
    set /p m=Message:
    net send %n %m
    Pause
    Goto A

  2. 2
    Save the file as "messenger.bat", making sure the file type is All.
  3. 3
    Run the program by double clicking the file.
  4. 4
    A black window will appear where you will be shown:
    User:
    Message:
  5. 5
    Input the IP address of the computer you want to send your mesaage to in the User field.
  6. 6
    Input your message in the Message field.
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How to Backup Exchange Server

2011-05-24T07:19:29.041-07:00

How to Backup Exchange Server 2003 With NTBACKUP 1Make sure the Exchange System Manager is installed on the backup server. 2Left-click on the start key and choose "run." Type in "NTBACKUP" on the command line.3Click on the prompts to the next screen. Choose a folder to save the backed up files to. Name the backup. Choose whether to verify the data after the backup. This will take longer, but ensures a successful backup.4Wait for the backup to finish running. How to Backup Exchange Server 2010 With Windows Server Backup 1Install the Windows Server Backup feature on the local computer.2Disable the Exchange Replication Service VSS writer if it is running.3Log on to the Exchange server as a user with permission to backup and restore mailboxes.4Open Windows Server Backup from the programs folder.5Select "Backup Once" from the actions menu.6Click "Different options," and then click "next."7Choose the type of backup and click "next." "Full server" is recommended to back up all volumes. With "custom," specific volumes can be selected for backup on the next screen. Volumes that include operating system applications or components are backed up by default.8Pick the location to store the backed up data and click on "next." 9Specify "VSS full backup" on the advanced options page. Click "next." Confirm the backup options and run the backup.10View the backup status on the "Backup progress" screen. Choose "close" when the backup is complete. 1Check with Microsoft and the vendor to make sure the third party application is supported by Microsoft and meets requirements for backing up Exchange. 2Install Exchange Agent backup software on the backup server.3Decide whether to run online or offline backups. 4Choose whether to do full, incremental, or differential backups[...]



Backup Active Directory

2011-05-24T07:15:33.526-07:00

  1. 1
    Understand what constitutes a good backup to properly plan a backup schedule.
  2. 2
    Log on to the Domain Controller locally as an administrator or a backup operator.
  3. 3
    Left-click on the start button. Navigate to Programs, Accessories, System Tools. Select "Backup." Click on the backup wizard button and choose "next."
  4. 4
    Choose "back up selected files, drives, or network data."
  5. 5
    Select "System State" on the screen that asks what items to back up.
  6. 6
    Click the plus sign next to the drive letter that contains the system files to expand the selection. Select "system disk." Click "next."
  7. 7
    Specify a folder or tape device to backup to in the "Where to Store the Backup" choice.
  8. 8
    Name the file if using file backup, or select the tape to be used if using a tape in the "Backup Media or File Name" box.
  9. 9
    Make sure the selection "Prompt to replace data" is included under the "How" category. If necessary, select the Advanced button and follow the prompts until reaching the Media Options screen. Choose "Replace the data on the media with this backup."
  10. 10
    Follow the prompts to the "finish" screen. Choose "yes" to overwrite data.
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Create Account when Setting up a VPN

2011-05-24T07:14:05.282-07:00

  1. 1
    On the User Permissions screen, Click Add.

  2. 2
    Enter a username.
  3. 3
    Enter their full name.
  4. 4
    Enter a password.
  5. 5
    Enter the same password in the confirm password screen.
  6. 6
    Click OK
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Step to Make a Network Cable

2011-05-24T07:11:45.662-07:00

1Unroll the required length of network cable and add a little extra wire, just in case. If a boot is to be fitted, do so before stripping away the sleeve and ensure the boot faces the correct way. 2 Carefully remove the outer jacket of the cable. 3 Inspect the newly revealed wires for any cuts or scrapes that expose the copper wire inside.4 Untwist the pairs so they will lay flat between your fingers.5 Arrange the wires based on the wiring specifications you are following. 568B - Put the wires in the following order, from left to right:white orangeorangewhite greenbluewhite bluegreenwhite brownbrown568A - from left to right: white/green, green, white/orange, blue, white/blue, orange, white/brown, brown. You can also use the mnemonic 1-2-3-6/3-6-1-2 to remember which wires are switched. 6Press all the wires flat and parallel between your thumb and forefinger. 7 Keep the wires flat and in order as you push them into the RJ-45 plug with the flat surface of the plug on top. 8 Place the wired plug into the crimping tool. 9Repeat all of the above steps with the other end of the cable.10 Test the cable to ensure that it will function in the field.[...]



Connection Q & A

2011-04-04T05:20:59.025-07:00

Wired connected but WIFI Disconnected


1. The wireless settings on your wireless device.
2. The settings for the router.
Since you already reset your router, you should scan the wireless device (in this case the IPod touch) to see if it can connect. You don't mention here what kind of internet you are using neither how you have it configure. That is a plus to help you out here.
Try to get into the router and check the settings, you do this by typing the IP of your router
Eg. 192.168.1.1; 192.168.1.254 etc... IF you don't know the IP just check it under the router it self.


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technorti

2011-03-25T06:36:27.153-07:00

6BQCDD4NA6PV
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Broadband Router FAQ

2011-04-22T08:51:09.478-07:00

Q:  Need Instruction for setting up the router. A:  Here is the Quick Installation Guide with step by step screen shot.      Power off your cable modem/DSL modem.  Connect a RJ45 Cat 5 cable from the cable/dsl modem ethernet port to the WAN port of router.  Then connect a RJ45 Cat 5 cable from the network adapter of your PC to a LAN port of the router.      Power on the cable modem/DSL modem.  Wait 1 minute for the cable/DSL modem to start up.  Then power on Edimax router.  Take a look at the LEDs on the router.       The LEDs of WAN port of the router should be lit up.   If none of the WAN 10/100M and LNK/ACT is lit up, please try a different RJ45 cable and make sure the cable is plugged in securely.      The Link/Act LED of the specific LAN port should be on.Q: How to login to the router and configure the router?A:  The default IP address for Edimax router is 192.168.2.1     Open Internet Explorer.  In the address bar, type in http://192.168.2.1 then hit Enter.  You will get the login prompt window.  The default username is admin.  The password is 1234.  Hit Login button.  You will login to the router's configuration page.  Q: Unable to login to the router?  The Internet Explorer gives me "the page can not be displayed."A:   Please do the following.1.  Make sure your network cable are connected correctly and LED of the specific LAN port on the router is lit up.2.  Check the IP address of your computer.     The default IP address for Edimax router is 192.168.2.1.  If your computer does not have an IP address like 192.168.2.xxx, your computer is not in the same IP network with the router.  Then you can not login to the router.     Do the following to check the IP address of your computer,      Click on Start and select Run.  Type "command" hit OK.  Under the command prompt, type "ipconfig" then hit Enter key.  You will see the IP address.  It should be like 192.168.2.xxx.      If the IP address is not 192.168.2.xxx, make sure your PC is configured to obtain IP address automatically.    For Windows 98/ME computers, go to Network in Control Panel.  Double click on TCP/IP protocol for the ethernet adapter.  Select the option of "Obtain an IP address automatically".  Click on Gateway tab, remove any exist Gateway address.    For Windows XP/2000 computers, go to Network Connections in Control Panel.  Right click on Local Area Connection and select Properties.  Double click on Internet TCP/IP protocol.  Select the option of "Obtain an IP address automatically".    Click OK to close Network Connection.  Windows 98/ME may ask you to restart.  After computer restart, check IP address by running "ipconfig" in command prompt.    To release and renew the IP address:    For Windows XP/2000 computers, go to command prompt.  Type "ipconfig  /release" Enter.  Then "ipconfig  /renew" Enter.    For Windows 98/ME computers, go to command prompt.&[...]



Capture LAN Traffic

2011-04-22T08:44:28.985-07:00

Enabling Port Mirroring on the Vigor 2820 Series

Telnet to the router and use the commands as shown in the example. In our example, LAN ethernet Port 2 will be used to connect to our PC running SmartMonitor and Port 1 will be the port we'll be mirroring (listening to):
(image)
When port mirroring is enabled, the listening port (P2 in the above example) does not have Internet access.

Enabling Port Mirroring on the Vigor 2950 or VigorPro 5510 Series

These models have a specific port which can be switched to mirror mode (marked on the front panel). Use the following telnet command to enable port mirroring:
(image)
(image)



Data Flow Monitor

2011-04-22T08:44:24.510-07:00

How do I use the Data Flow Monitor?With the Data Flow Monitor you can check the number of sessions or the amount of bandwidth being used at a given time by a specific IP address.Also you can block a particular IP address from accessing the Internet for 300 Seconds (5 Minutes) to free up some bandwidth for important data transfers.With the traffic graph you can check the total amount of bandwidth usage or number of sessions established for last 36 hrs or a week from the time you load the traffic graph page.To check real time bandwidth usages go to:Diagnostics > Data Flow Monitor and enable itRefresh Seconds Use the drop down list to choose the time interval for refreshing data flow monitor page automatically.Refresh - Click this link to refresh Data Flow Monitor page manually.IP Address - Displays the IP addresses of various devices on the network which are actively transmitting the data.TX rate (kbps) - Displays the transmission speed of the monitored device.RX rate (kbps) - Displays the receiving speed of the monitored device.Sessions - Displays the number of sessions established by a specific IP address at a given time.Action Block - Can prevent specified IP address from accessing the Internet for 300 Seconds or 5 minutes.Unblock - If you have blocked a specific IP address by clicking on the Block link you can unblock it manually before 5 miniutes if required. What is the Traffic Graph?To check the Traffic Graph go to Diagnostics > Traffic Graph The Horizontal axis represents the time in hours or days depending on your view selection (Daily/Weekly). The Vertical axis represents different units and it depends on the view selection i.e. Bandwidth or Sessions.For WAN1/WAN2 Bandwidth chart, the vertical axis represents the number of transmitted and received packets in Kbps. For the Sessions chart, the vertical axis represents the number of NAT sessions.[...]



Install DMS and your 3G Modem on your PC

2011-04-22T09:15:53.823-07:00

Pre-requistes - Install DMS and your 3G Modem on your PC (Windows)Before starting, you will need to have installed some USB Diagnostics software. We recommend and use in this guide HHS's software called DMS (Device Monitoring Software, USB Monitor). This is available from here and a 14 day trial can be downloaded directly from here. Also, be sure that the 3G modem or phone works correctly on your PC and that you can connect to the internet. Step 1 - Identifying your Modem's USB IDsYour USB modem/phone must be correctly installed any plugged into your PC. From your windows desktop, Right Click on 'My Computer' and select 'Manage': Computer Management will open, as shown below. Within that, in the left hand pane, you will find Device Manager. If you select Device Manager, you will then see a list of all hardware components in the right hand pane, categorised by device type (hard drives, VDUs etc.). Select the category for Universal Serial Bus (USB) Controllers, as shown below. Within there, you will see several USB devices, including your hubs, as well as some USB devices you don't immediately recognise. Your USB modem/phone may have an obvious name, so you can immediately identify it. Otherwise, your USB modem might actually be shown as a USB Mass Storage Device because the modems often have built in memory (like a USB memory stick) as well as their modem. Right click on the most likely device and it should be easier to identify the device by the manufacturer name; in the example below, you can see "Huawei" on the General tab. Click on the 'Details' tab, as shown below and here you will find the USB PID/VID numbers. Note those down for later:Step 2 - Setting up 'Device Monitoring Studio' Your USB modem should still be connected to your PC. Load up the DMS software (as shown below). In the left hand pane, you will see your various USB devices. Select your USB modem. It may be listed with an obvious name, or may not. In our example, it's nice and clear as the Huawei modem or USB Composite Device. To be sure we're selecting the right device, right click on it and select properties. If you're really not sure, you could repeat the whole process on more than one device. On the 'diagnostics' tab, you will see the USB PID/VID identifiers; they should match the IDs which you noted down earlier in stage 1. If it doesn't match, try one of the other USB devices:Double click the modem in the left hand panel and the screen below will appear. In the right hand panel, you will see that 'Data Recording' is already listed. Select URB View to add that to the list too. Once that is sown in the right hand panel, click Start to begin capturing. Step 3 - Capturing the Modem Setup DataUnplug the USB 3G modem from your PC. Wait for 10-15 seconds for any remaining USB activity to cease. Then click the 'Erase All Views' button in the DMS software; that will just remove any accumated data so far which we don't need:Plug your USB modem/phone back into your PC and once it has been recognised by the PC. Go online to the Internet using the 3G modem. Commonly, this is done with a program provided by your cellphone company. In the example below, we're using T-Mobile and we would press the 'Connect' button:Once you are online to the Internet, disconnect from the Inte[...]



Use Ethereal

2011-04-22T09:15:28.656-07:00

Ethereal is an excellent and free third-party tool useful if you wish to examine the data that your PC is sending, at the TCP/IP level (across the Ethernet). It is often referred to as a 'sniffer'. Ethereal is not a DrayTek produced or supported product but we provide some installation documentation as a courtesy here. Ethereal will capture data packets coming in and out of your PC and is therefore very useful to an engineer for diagnosing problems, or improving compatibility with specifical applications. Although these instructions looks long and complicated, the program is actually very easy to use and reasonably intuitive, though we would not recommend Ethereal for novices.Download the WinPCap utility from hereDownload Ethereal for Windows 98/Me/XP/2k from here.Load the program by double clicking the dekstop icon :The main program window will appear, similar to this : Select Capture and Start (or press Ctrl-K):If you get the following error, you must firstly install the WinPCap driver (see earlier) : After selecting 'Capture' this screen will appear :Ensure that all of the buttons in the Name Resolution section are NOT selected (i.e. they should not be depressed). In the filename box, enter a suitable filename for the capture file. It is this file which you will examine later, or send to your support contact, so give it a name that is fairly unique, not something too generic like "log.txt": Ensure that there is no other Ethernet/Internet activity running on your PC, such as a download; such activity will add unnecessary data to the log we're about to make.Click the OK button and capture will commence; the following window will appear on your screen to show that capure is in progress :Now, leaving Ethereal running, you should now immediately carry out the function/process that you are trying to diagnose. For example, if it is a VPN client connection, try the connection.Once the process under examination/test has completed, go back to Ethereal and in the status window, click :Depending on how much data it captures, Ethereal will take a few seconds to collate the information. Once ready, your Ethereal window will be filled with data, something like this :You can now close Ethereal and examine the data it captured which will have been saved to the filename you selected earlier. If you have been asked for send that capture to someone, it's the same file you should send.[...]



PING Details

2011-03-05T08:12:43.032-08:00

A 'ping' is a small data packet which can be sent to any TCP/IP device and should be immediately echoed back to the sender, thus confirming a working route both ways.
You can send Pings from the MS-DOS prompt the router by typing PING followed by the router’s IP address, as shown below. If the pings Timeout (i.e. are not returned) then the router cannot be seen (pinged) from that PC and you have a problem.
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Common diagnostic procedures include the following pings :
  • From PC to Router ( e.g. ping 192.168.1.1 )
  • From PC to external IP address (e.g. ping 194.153.0.18 )
  • From PC to external URL (e.g. ping www.draytek.com)
If pinging numeric IP addresses works, but pinging URLs (named addresses) doesn't then the problem is most likely with the DNS facility.
You can also ping directly from the router to internal (LAN) or External (WAN/Internet) IP addresses. To do this, access the router's Telnet interface and use the command 'ip ping'. For example:
> ip ping 192.168.1.10

Pinging 192.168.1.10 with 64 bytes of data
Received Reply from 192.168.1.10, time 20ms
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Telnet diagnostic logs

2011-04-22T09:14:58.208-07:00

When analysing a problem, or simply trying to learn more about your router, it is sometimes useful to produce or view logs that the router can produce. These are several types of log, and they are all accessed via the Telnet interface (for information on accessing the Telnet interface,The commands vary with each router, but these are the general ones :log -c (Call log - shows call/login attempts for Internet and VPN)log -i (ISDN Log - D/B channel activity)log -p (PPP Log)log -wt (WAN Log)log -f (Filter Log - Data/Call Filter information)The logging function runs continuously (you do not need to enable it specifically) so it will contain a lot of data after a while. If you want to log a specific event, you should flush (clear) the logs before you initiate that event. Do this with the command log -F a The most commonly used log is the call log (log -c), which will show any problems with logging in to your ISP or a VPN login error, for example if you had your username or password wrong (for an ISP that is normally indicated by the message "CHAP Login Failed". The example below shows the call log of a router which has logged into the ISP successfully (on ADSL) and then a teleworker has dialled into the router:The next example log shown shows a successful call on an ISDN Router (e.g. Vigor2800i), and you can determine some useful formation from it. You can see that it dials twice, and gets a busy signal twice, then on the third attempt, it connects to the ISP, the authentication goes through and then a couple of minutes later, the call is cleared due to inactivity. You can also see whose PC triggered the call – in this case it was 192.168.0.2 which happens to be a local mail server: How do I open a Telnet session to the router ?The Web User Interface (WUI) is your normal method for configuring and checking status of the router. The Telnet interface is a 'command line' type interface which gives a prompt at which you enter commands line by line, according to command syntax. The scrolling display method is ideal for longer diagnostic log output compared to fixed pages of the WUI.Although WindowsXP/2000 has a default simple Telnet program, it is 'DOS/Console' based, which makes capturing of output difficult (for example to send logs to an engineer). We therefore recommend using the Windows Hyperterminal program instead, which is standard in Windows. Run it from the Start Menu:When the program loads, select TCP/IP like this :  The Telnet session should start and once past the router password, you can enter your required commands, for example 'sys ver' displays the router's firmware version: A text capture will store all of your session to a text file which you can view later, or send to an engineer for analysis. Start a text capture from the menu:At the end of your session, select 'Stop Capture' from the same menu or just exit Hyperterminal to stop the text capture.In Windows 95/98/ME the default Telnet program can be used instead. Press the Start button, then Run, then enter TELNET.EXE 192.168.1.1 (assuming that's the router's IP address) and the telnet program will open.For other operating systems, suitable Telnet programs are either in[...]