IET - IP and Ethernet testing Tool

IP and Ethernet testing Tool ("IET") is an ethernet bridge addon for testing of network appliances and applications (communication equipment).

Initialy IskraTel extended and customized the NistNet tool. However NistNet functions on IP layer and requires that tested equipment be configured to use different subnets and gateways. Nistnet main purpose was internet emulation while IET main purpose is testing of communication equipment.

• Features
• News
• Screeenshots
• Delay distribution graph
• License
• Download
• Support

Features:

• no need to reconfigure equipment, just insert a PC with two NICs "on the cable"
• works on the ethernet level with a bridge
• network error conditions:
  • packet loss
  • delay
  • in transmission errors (IP, UDP layer)
  • bandwidth restraints
• kernel driver for low-CPU overhead packet processing
• control application for configuring driver engine
• GUI
• CLI
• saving configuration to a text file

News:

2003/04/07

• 0.8.5 released
• Fixed support for matching ethernet packets based on the protocol
• Added additional matches for ICMP, TCP and UDP protocols (ICMP Type, TCP/UDP src port and dst port)
• Added target for corruption of IP and UDP packets with optional checksum update.
• Numerous small bug-fixes and enhancements
• IET has entered feature-freez and until version 1.0.0 is released there will be only bugfixes

2003/03/21

• 0.8.0 released
• This is the initial release.
• IET is already used in our testing environments and is quite stable this is why we decided to start with a high version number.

Screenshots:

Initial screen with one rule. On the left you can see a list of rules. In the middle is a notetab with a matching column and a target column. The last column holds the statistic infromation.

The same screen with IP tab open. Visible is IP based matching area and IP/UDP based target area. For a packet to "hit" a target it has to match both ethernet and IP criteria (left notetab column).

Delay distribution graphs:

IET supports a constant and random delay. This graphs show the even distribution of delay engine (set to 200ms constant and 50ms random delay).
X axis: Packet number
Y axis: Packet delay

The same graph with dots. A carefull observer will notice the linux timer granularity. The data was acquired on a RedHat 8.0 vendor kernel with a resolution of 512ticks per second.

License:

This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

Support: