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Cellular Data Network Simulator

Cellular Data Network Simulator is dedicated WiFi network to monitor network usage and simulate network link conditions for mobile applications. It uses well established technologies: OpenWrt, tc, iptables and CloudShark.

Features

Easy to use web and mobile interface
Simulate: bandwidth, delay, loss, corruption, occasional loss of signal
Can capture the traffic and send it to CloudShark
Apply limits per-device
Works well in environment with multiple devices and multiple testers
Works well as virtual machine bridged with separate wireless network

Requirements

OpenWrt device running on Barrier Breaker - can be router or virtual machine
Two network interfaces - one for WAN and one for WIFI/LAN

Installation

The are a few simple steps to install Cellular Data Network Simulator:

Install cdns:
```
opkg update
opkg install http://polidea.github.io/Cellular-Data-Network-Simulator/cdns_0.5-3_all.ipk
```
Installation of Cellular Data Network Simulator replaces default Luci webpage. The Luci can be accessed using: http://ip-address/index-old.html
Configure:
```
vim /etc/config/cdns
```
By default there are 5 profiles: Full, HSDPA, Edge, GPRS and Disabled.

In order to support packet capture uploads to Cloudshark, you must edit the cloudshark_api_token parameter. You must create an account at https://www.cloudshark.org and retrieve your API token from the Preferences / API Tokens drop-down menu.
Start the service:
```
/etc/init.d/cdns enable
/etc/init.d/cdns start
```
That simply enables and starts the service,
Start the uhttpd daemon:
```
/etc/init.d/uhttpd enable
/etc/init.d/uhttpd start
```
If you didn’t do it before you have to enable and start the uhttpd daemon.
Start using:

Simply open: http://ip-address/.

Uninstallation

    /etc/init.d/cdns stop
    opkg remove cdns

Compile yourself

Download sources:
```
git clone <repo-path>
```
Build the package yourself:
```
make
```
For more options view help:
```
make help
```

License

   BSD 2-Clause License

FAQ

To fix problems with displaying web page execute from router's commandline:
```
grep -lir "<html>" /tmp/testing/events*.cfg | xargs rm
```

Changelog

v.0.5-0: First public release (25.11.2013)
v.0.5-1: Bug fixing (12.02.2014)
v.0.5-2: Fixed Cloudshark URL and added CA bundle (25.03.2014)
v.0.5-3: Fixed #5 (18.09.2014)

Polidea / Cellular-Data-Network-Simulator

readme