Tag: router

Openwrt dmesg human timestamp

To viel on busybox dmesg with human readable time for debug do: $vi /root/dmesg.sh insert: base=$(cut -d '.' -f1 /proc/uptime); seconds=$(date +%s); dmesg | sed 's/\]//;s/\[//;s/\([^.]\)\.\([^ ]*\)\(.*\)/\1\n\3/' | while read first; do read second; first=`date +"%d/%m/%Y %H:%M:%S" –date="@$(($seconds – $base + $first))"`; printf "[%s] %s\n" "$first" "$second"; done exit 0 run it sh dmesg.sh.. System Echo: … [16/03/2018 14:55:18] br-lan: port 3(wlan1) entered blocking state [16/03/2018 14:55:18] br-lan: port 3(wlan1) entered disabled state [16/03/2018 14:55:18] device wlan1 entered promiscuous mode [16/03/2018 14:55:18] br-lan: port 3(wlan1) entered blocking state [16/03/2018 14:55:18] br-lan: port 3(wlan1) entered forwarding state [16/03/2018 14:55:19] br-lan: port […]

LEDE OPENWRT WIFI USB SETUP

Test Setup Futro S500 with USB Wifi Dongle Realtek RTL8192CU PCI Riser Card with Realtek Gigabit LEDE 17.XX Trunk Kernel 4.14 Download latest Version from openwrt.org select x86/64 extract the compressed image (*ext4*img.gz) and dump it with “dd” to CF-Card 1GB Sample for Clean Setup like TP-Link Router Firmware: You need to install this packages by “opkg update && opkg install package name && reboot”: base-files – 184-r6198-ba5f700 busybox – 1.27.2-3 dnsmasq – 2.79rc1-1 dropbear – 2017.75-5 e2fsprogs – 1.43.7-1 firewall – 2017-11-07-c4309372-2 fstools – 2018-02-11-3d239815-1 fwtool – 1 hostapd – 2017-08-24-c2d4f2eb-6 hostapd-common – 2017-08-24-c2d4f2eb-6 hostapd-utils – 2017-08-24-c2d4f2eb-6 iftop – […]

DSL ISP check daily speed

​#dsl #telekom #speed #einundeins #router #settings do weekly #check the webinterface of your #Internet #connection somtimes #lower than you pay by #isp #provider #contract #malfunction  :-( no #DSL100 

Fritzbox: Easy USV UPS AVM 7490 Battery Power

If you use a Router with IP Phones you perhaps want to have a Power Storage for up to 60 Minutes to use IP Phone or WIFI on Power Failures?? Major Info: Check the Router DATASHEETS! the Battery Voltage on loading should never go over maximum!! Some Trafo wind up to 14Volts and more! This DESTROYS the DSL MODEM CHIP !!!! The 10 Cell AA Batterholder allow to connect 9 Cells! Connect the Wire to only 9th Connector 9x AA 1,26V let the Router work The Modem is protected cause the Circut runs under 12 Volts! 11,25 – 11,5V, the […]

Freifunk: Openwrt Router Setup Mesh Wifi Meshing

Many of Users have asked me what are the Advantages of using Freifunk WIFI Routers at Home? One of  my answer’s is that the Freifunk OS Openwrt SUPPORT the “MESH” Technology! This is mostly offered by high end WIFI Accesspoint’s or Industrial Devices. Mesh is a Communication Protocol where minimum 2 Devices handle WIFI Access Connections to a WIFI Endpoint (Client, like a Tablet) There are 3 supported “Mesh” Types: Mesh connects between LAN Ports Mesh connects between WAN Ports Mesh connects between WIFI (default) Here you see a Mesh Map of a Mesh Network (Public Admin Webpage Meshviewer): Advantage […]

Freifunk: Setup Router Software Bugfix

If you want to share Public Wifi at home for friends and you don’t want to share the Wifi Password, you can setup cheap a Public Openwrt Wifi Router as Access Point. Advantages: Public Setup needs no Wifi Password You are not responsible, cause the Internet is pulled thru a VPN of Freifunk Network It’s anonymous! It’s free of Charge! Supported by a big Community Can installed on very cheap old Routers like the TP-Link 841 (find the Singleband Router on Amaz or EbXX 12$ or Powerfull Dualband Router TP Link C7 at 50$) Can by used at EVERY Freifunk […]

Security: Harden DSL Routers and Networks against attacks

Last days there was a high count of news about the Bot Attacks against T-Com Telekom Router devices. To understand the behavior about this up comming security problems you should know following points : Every network supported device can be a goal for a attack ( Routers, Modems, PC, Fridges,IP-TV, IP Switches, IP-Cams…) You have to update the OS for each device monthly, if not supported by the manufacter, then dont buy! Try to get Opensource Hardware with Opensource Software for full access (ssh / console) to have full control Reduce the count of devices who are connected direct to […]

Openwrt : Openwrt 15.XX loses settings if the ROM Root Filesystem is full

On openwrt 15.XX i have seen if you installed additional Sofware via opkg and the /overlay path is nearby full you can’t save any settings via Luci Webinterface (blue Info box right upper corner) or the Router reboots hard automatic into failsave mode (lost all settings / factory reset) Workaround: You can install a external usb stick on most routers and move the “/overlay” folder to it You should always Download the “backup-settings.tgz” from Software Menu to get the Router easy  and fast online again on last working state. If the rootfs (root filesystem and overlay path) is nearby full, […]

Openwrt: Turn older Router into Wifi Accesspoint Repeater Extender Solar Powered

At the Summer Time you need perhaps a Wifi Extender for your Garden?? Solution: TP Link 841/N (low power/Battery 9V/Solar /Type-N-allows external planar Antennas!!), 3600+4300 (USB-NAS/CIFS/SFTP/Classroom Library with USB Strorage) Openwrt 15.XX Calmer as OS with Firewall, Webinterface and REALTIME Monitor for Traffic and Connections! Easy Setup, replace the OS by the TP-Link-Updater, reboot and Login to Openwrt You got professional Options! works as Firewall, Extender, Repeater, WIFI-to-WIFI Bridge, LAN-to-WIFI Bridge, NTP-Server, DNS/DHCP Server can isolate connected WIFI Clients can handle different WIFI SSIDs / Networks on same Hardware modded Hardware can be used with 5Volts of Power! (841 removed Resistor) […]

Fritzbox: DNS lookup slow

Problem: Wenn man mit einem PC hinter eine Router z.b. fritzbox 7170 sitzt kann das anfordern von Internetseiten (http://www.usw…) länger dauern. Grund Ihr Internetprovider besitzt DNS-Namensauflösungsserver die unter hoher Last z.B. viele DSL-Kunden leiden. Das Problem besteht weiter darin das Ihr DSL-Router dynamisch diese DNS-Server mitgeteilt bekommt und Sie diese nicht manuell ändern können (ander Fabrikate ausgenommen) Lösung: Sie richten auf Ihrem PC unter Netzwerkeinstellugen neue zusätzliche DNS Servereinträge ein und nutzen diese an erster Stelle öffenen Sie die Datei /etc/resolv.conf (für Windows Nutzer siehe Netzwerk) und einfügen nameserver 208.67.222.222 #OPENDNS POWER SERVER nameserver 208.67.220.220 nameserver 192.168.178.1 #Router nun sollten […]