HOW TO capture Fritz!Box DSL traffic in real time
HOW TO capture Fritz!Box WLAN traffic in real time
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The Fritz!Box is a very powerful DSL Wireless Router with several unique features:
- Certified firewall protects all your local computers.
- Acts as a private telephone exchange for two lines and several telephones.
- Supports VOIP Internet Telephony from any attached phone.
- Supports direct incoming VOIP calls (no VOIP Service Provider needed)
- Can ring your phones when a Skype call comes in.
- Supports IEEE 802.11g++ for added range and speed.
- Excellent DSL throughput, even at high bit rates.
- Traffic Shaping allocates DSL bandwidth fairly amongst applications.
- Most models allow USB Drives and Printers to be attached.
- Functionality can be extended by starting programs on a USB storage device.
NAT32 Builds 1048 and later have Fritz!Box control and configuration support via a upnpc command.
Full details of the latest Fritz!Box models are here: Fritz!Box Home
The Fritz!Box Fon WLAN Annex A Version (Part Number 2000 1681) works perfectly in Australia and other countries that have non-ISDN (POTS) telephone networks. It comes with English firmware and instructions and can be ordered from: Sipgate (UK).
The Fritz!Box models 7270 and 7390 are now available in Australia.
Tips and Tricks
- When using a phone with the Fritz!Box, you may hear a continuous buzzing noise when you try to make a call. This is mains hum caused by an earth loop of some sort. To get rid of it, substitute a normal CAT5 unshielded twisted pair Ethernet cable for the shielded cable that came with the box.
- This also fixes Caller ID problems that many users are reporting.
- Be careful when attaching externally powered devices to the USB port (7270 and later). For some unknown reason (probably related to mains hum or other noise) caller ID does not work when certain USB devices are attached. Unfortunately, although the vendor was made aware of this problem some time ago, nothing has been done about it to date (16. May, 2011).
- To turn on the Telnet Server in the Fritzbox, pick up your phone and then type: #96*7*
- Update: The Telnet Server was omitted from many recent firmware updates, and so the above may not work. To fix this problem, download this file: http://www.telefonsparbuch.de/software/fritzbox/TelefonSparbuch_Telnet04.30.tar and install it on your FritzBox as a firmware update.
- Update: The Telnet Server is available in the 7390 and can be started as outlined above.
- To start the Telnet Server when your Fritz!Box boots, enter the following commands:echo '#!/bin/sh'>/var/rc.user echo '/usr/sbin/telnetd -l /sbin/ar7login'>>/var/rc.user cat /var/rc.user > /var/flash/debug.cfg
- The sequence #96*8* turns off the Telnet Server.
- To install and start an FTP Server on your Fritz!Box, see Tuning and Hacking the Fritz!Box (In German).
- If you have a 7170 Fritz!Box, it is already running an FTP server that you can use to access a USB drive.
- Be sure to check for the latest firmware for your Fritz!box here: Fritz!Box Firmware
- If you are using Internet Explorer 7 (or later), be sure to add 192.168.178.1 to the list of trusted sites, otherwise the firmware update will not work. This is because the pathname of the update file is stripped by IE7 and the firmware file can then not be found.
- How to trace Fritz!Box traffic.
How to Edit Configuration Files
- Start the Fritz!Box editor nvi.
- To edit say the voip.cfg file, enter: nvi /var/flash/voip.cfg
- Type / to search for text, i to enter edit mode, then make the needed changes.
- ESC returns to command mode, :w saves the file, :q exits the editor.
- Command reboot restarts the Fritz!Box.
- Command exit exits Telnet.
Fritz!Box DSL Traffic Monitor, External Routers, Test Fritz Devices