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Network device manufacturers and end users desire stateful network traffic generators to test devices and associated configurations. Packets, specifically defined for the test, are sent from end points through the device or network under test, and results are recorded on throughput, packet loss and latency between the end points. High levels of traffic generation can be used to stress and load test the devices or network under test. Traffic Generator’s may be deployed in the field for throughput testing or troubleshooting.

Candela Technologies LANforge Fire and ICE, are ideal for field or lab, and use a common GUI to provide both network traffic generation and impairment (WAN Emulation).

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  • Overview
  • Diagram
  • Business Case
  • Features
  • Capability Matrix
  • FAQ

LANforge Fire generates traffic for network testing, validation and audit

Traffic Genertaion for 100Mbps, 1 Gigabit and 10 Gigabit

LANforge Traffic Generation simulates the edge of the network under test. LANforge FIRE can generate FTP, HTTP, VoIP (SIP, RTP, RTCP), TCP/IP, UDP/IP, Ethernet and custom payloads. It supports 802.1Q VLANs, and can also emulate 250 to several thousand Ethernet interfaces with unique MAC and IP addresses, allowing a single LANforge machine to appear as an entire subnet of machines.

With the Armageddon feature, LANforge can generate and receive traffic up to 99% of the interface (100Mbps, 1 Gig and 10 Gig).

For VoIP testing, LANforge generates SIP messaging protocol, and can generate the RTP media stream traffic as well.

The WiFi testing solution can emulate from 31 to 400 802.11a/b/g/n wireless stations.

See how it works in less than three minutes


I would like to evaluate LANforge Request Evaluation Software or Appliances

New - Two Endpoint system (Two Systems Shipped)

LANforgeF40AA - WAN SIP Call Generator(Up to 10 call pairs $1,189.00)

The LANforgeF40AA solution comes with a pair of low-power and affordable appliances, each with a single 10/100 Ethernet port, and together capable of up to 40Mbps of bi-directional traffic. It is targeted at users who wish to test between WAN connections or two end points on a network with up to 40Mbps of bi-directional traffic. Also capable of testing QoS and generating IP port specific traffic.

The LANforgeF40AA is based on the Raspberry PI B platform, running the Linux Raspbian OS. The LANforgeF40AA has no moving parts and is about the size of a deck of cards. It has HDMI, Keyboard, and Mouse interfaces for easy console/desktop access to the system. Also required is a separate PC running the LANforge GUI on the same network to manage the LANforge systems.

Single units may be purchased for additional end point locations. Product code no. is LANforgeF40ME



Network Traffic Generator

LANforge Fire Configuration

LANforge Fire

Network traffic on business networks includes multi-tier applications, user loads from the web, e-mail, web conferencing, streaming media and VoIP. Network devices such as switches or routers are called upon to support increasing traffic with a wide array of protocols, packet sizes, addresses, traffic patterns, VLAN segmentation and QOS.

LANforge Fire provides a test solution to generate traffic to validate that the devices will be able to perform when making configuration changes, adding users or applications.

  • Validates stability and data throughput on devices under evaluation.
  • Useful for testing any network - Ethernet, Wireless and VoIP
  • Cost effective solution for testing efforts requiring many data-generating ports or simulation of multiple mIP's and protocols.
  • Turn key solution. The LANforge systems can come pre-installed and configured to customer requirements.
  • Modular architecture allows you to leverage existing LANforge investment as your need for capacity increases.
  • Ease of use - Manage entire LANforge installation through one interface, from anywhere on the network.

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LANforge FIRE Stateful Network Traffic Generator

LANforge FIRE & Armageddon: Feature Highlights
LANforge VoIP/RTP Call Generator Feature Highlights
LANforge Wireless Traffic Generator Highlight
LANforge NetReplay & Backtrack Feature Highlights

LANforge FIRE & Armageddon: Feature Highlights

  • Supports real-world protocols: (Benchmarked on high-end Candela Technologies-supplied hardware, typically equivalent to the LF1002 server.)
    • Layer 2: Raw-Ethernet (225 Mbps+ bi-directional on GigE)
    • PPP: Supports PPP and multi-link PPP over T1/E1 interfaces at full line speed
    • Layer 3: Armageddon accellerated UDP/IP (5 Gbps with 9000 byte frames on 10 GE; 990 Mbps, 81,800 pps on GigE; both symmetrical and bidirectional, sending to self (2 ports))
    • Layer 3: UDP/IP (990 Mbps+ bi-directional with 64K byte PDUs (1500 byte MTU) on GigE)
    • Layer 3: UDP/IPv6 (990 Mbps+ bi-directional with 64K byte PDUs (1500 byte MTU) on GigE)
    • Layer 3: IGMP Multicast UDP (500+ receivers)
    • Layer 3: IGMP Multicast UDP over IPv6 (500+ receivers)
    • Layer 3: Stateful TCP/IP (980 Mbps+ bi-directional with 64K byte writes (1500 byte MTU) on GigE)
    • Layer 3: Stateful TCP/IPv6 (980 Mbps+ bi-directional with 64K byte writes (1500 byte MTU)on GigE)
    • Layer 4: FTP (200 Mbps+, bi-directional, per processor)
    • Layer 4: HTTP (4 Gbps+ download, 65,000+/13,000+ Requests per Second, 3,000+ concurrent connections)
    • Layer 4: HTTPS (990Mbps+ download)
    • Layer 4: TELNET (not benchmarked, via integrated script)
    • Layer 4: PING (not benchmarked, via integrated script)
    • Layer 4: DNS (not benchmarked, via integrated script)
    • Layer 4: SMTP (not benchmarked, via integrated script)
    • Layer 4: VoIP Call Generator (SIP, RTP, RTCP, PESQ/MOS), 250+ calls per machine
    • Layer 4: Streaming audio and video with flexible plugin architecture.
  • Supports over 2000 connections on a single machine.
  • Supports real-world compliance with ARP protocol.
  • Supports ToS (QoS) settings for TCP/IP and UDP/IP connections.
  • Uses publicly available Linux, Windows and Solaris networking stack for increased standards compliance.
  • Utilizes libcurl for FTP, HTTP and HTTPS (SSL) protocols.
  • Supports file system test endpoints (can be used for NFS, SMB, and iSCSI file systems too!). Can emulate 1000+ CIFS and/or NFS clients with unique mount points, IPs, MACs, etc
  • Supports custom and command-line programs, like telnet, SMTP, and ping.
  • Comprehensive traffic reports include: Packet Transmit rate, Packet Receive rate, Packet Receive Drop %, Transmit Bytes, Receive Bytes, Latency, various ethernet driver level counters, and much more.
  • Supports generation of reports that are ready to be imported into your favorite spread-sheet.
  • Allows packet sniffing and network protocol decoding with the integrated Wireshark protocol sniffer.
  • GUI runs as Java application on Linux, Solaris and Microsoft Operating Systems (among others).
  • GUI can run remotely, even over low-bandwidth links to accommodate the needs of the users.
  • Central management application can manage multiple units, tests, and testers simultaneously.
  • Supports scriptable command line interface (telnet) which can be used to automate test scenarios. Perl libraries and example scripts are also provided!
  • Comprehensive management information detailing all aspects of the LANforge system including processor card statistics, test cases, and ethernet port statistics.
  • Supports 20 or more physical data-generating ethernet ports per 2U LANforge chassis.
  • Emulates over 2000 unique machines with one physical interface with the MAC-VLAN feature!
  • Supports over 2000 802.1Q VLANs.
  • Supports PPP-over-T1/E1 and PPPoE, including automated creation and deletion of the PPP interfaces
  • Supports 802.11a/b/g with WiFIRE feature set (see below.)
  • Automatic discovery of LANforge data generators simplifies configuration of LANforge test equipment.
  • LANforge stateful traffic generation and management software supported on Red Hat Linux, Microsoft Windows and Solaris.
  • Custom packet builder interface allows hand crafting of headers and payloads. Headers supported at Layer 2 include ARP, SNAP/LLC, 802.1Q, 802.1QinQ and MPLS. Some Layer 3 protocol headers supported include IP, IPX, UDP, TCP, ICMP, IGMP, IP-ENCAP, RDP, IPinIP and IPv6 protocols.

LANforge VoIP/RTP Call Generator Feature Highlights

  • SIP for call management.
    • SIP is now supported on both Windows and Linux.
    • SIP/UDP supported.
    • Can use directed mode, where VoIP phones call directly to themselves.
    • Can also use Gateway mode where the VoIP phones register with a SIP gateway.
    • SIP authentication is supported.
  • RTP protocol used for streaming media transport, and supports the following CODECS. More codecs may be supported in the future.
    • G.711u: 64kbps data stream, 50 packets per second (SIP, H.323)
    • G.729a: 8kbps data stream, 50 packets per second (SIP ONLY)
    • Speex: 16kbps data stream, 50 packets per second (SIP on Linux ONLY)
    • G.726-16: 16kbps data stream, 50 packets per second (SIP ONLY)
    • G.726-24: 24kbps data stream, 50 packets per second (SIP ONLY)
    • G.726-32: 32kbps data stream, 50 packets per second (SIP ONLY)
    • G.726-40: 40kbps data stream, 50 packets per second (SIP ONLY)
    • NONE: A messaging-only configuration is now supported (SIP ONLY)
  • Supports PESQ automated voice quality testing.
  • RTCP protocol used for streaming media statistics (SIP only)
  • Each LANforge VoIP/RTP endpoint can play from a wav file and record to a separate wav file. Almost any sound file can be converted to the correct wav file format with tools bundled with LANforge. Sample voice files are included.
  • Current benchmarks show support for 140 or more emulated VoIP phones per machine.
  • LANforge VoIP/RTP endpoints can call other LANforge endpoints or third party SIP phones like Cisco and Grandstream. Third party phones can also call LANforge endpoints and hear the WAV file being played.

LANforge WiFIRE 802.11a/b/g Traffic Generator

  • Useful for testing Wireless Access Points and deployments.
  • Can emulate up to 126 802.11a/b/g wireless client stations (Virtual STAs) per radio.
  • Each Virtual STA can be associated with a particular Access Point (AP).
  • Each Virtual STA has unique MAC address, IP address and routing table.
  • 128bit WEP, WPA2 and related wpa_supplicant authentication methods supported.
  • Supports all LANforge FIRE stateful traffic generation features, including HTTP, TCP, UDP, VOIP (SIP, RTP) and more.

LANforge NetReplay & Backtrack Feature Highlights

  • Using a combination of the LANforge-FIRE traffic generation and LANforge-ICE network emulation, LANforge supports capture and replay of ethernet packet streams.
  • Capture protocol can be converted to standard 'libpcap' format for use with other tools such as Ethereal and tcpdump.
  • Capture has been benchmarked at 1



LANforge Fire - Network Traffic and Voip Call Generator

Features and Transmit Characteristics Description
Connection Types

Layer 2 and 3 - Raw Ethernet, TCP/IP and UDP/IP, IPv4 and IPv6



File Endpoints - NFS, iSCSI, or SMB (SAMBA)


Streaming audio and video with flexible plugin architecture

Wireless test appliance - Emulates up to 31 802.11a/b/g virtual stations

Transfer Rate Fixed, Minimum and Maximum and transmit rates in bits per second. Random variation between the min and max creating a random stair-step pattern of data transmission over time.
Packet Size Fixed, Minimum and Maximum and random in bytes.
The payload pattern for the data can be increasing, decreasing, zeros, ones, randomly generated and custom.
Port Specify a particular port for IP traffic
ToS/QoS For IP based protocols, you can specify the ToS (aka QoS) bits in the IP header.
TTL This specifies the 'time-to-live' when configuring Multicast endpoints.
Checksum Performs a 32-bit CRC calculation on the Payload.
VoIP Specify SIP or H.323, CODEC, Ports, ToS, call setup, gateways, number of calls, ring time, Inter-Call gap and duration.
Virtual Interfaces Emulates unique machines with one physical interface. Emulates Ethernet, IP, 802.1Q VLAN's and wireless virtual stations.

Frequently Asked Questions

Can LANforge Fire be purchased as software?
Yes, or it can also be purchased as an appliance.

What type of hardware and operating system does LANforge Fire require?
LANforge Fire uses Industry standard PC hardware and can run on Windows and Linux.

How is LANforged Fire Licensed?
LANforge is licensed by ports of traffic generation and other features such as Virtual Interfaces, Armageddon and VoIP.

What is a typical configuration for LANforge Fire?
LANforge can be configured on a single appliance to both send and receive traffic which can be appropriate for Lab environments. It also can be installed locally and remote for Wide Area link testing. LANforge is very customizable and can be configured to customers requirements.

What is the highest bps rate supported by LANforge Fire?
LANforge Fire can support up to 9.99 Gbps bi-directional UDP Traffic.

Can LANforge Fire be used with LANforge Ice to emulate Wide Area Networks?
Yes, LANforge Ice can in many instances be configured on the same appliance as LANforge Fire.

Does LANforge Fire support testing for TOS or QOS?

Do you support Ipv4 and Ipv6?
Yes, Stateful TCP/Ipv4 (980 Mbps+ bi-directional with 64K byte writes (1500 byte MTU) on GigE), Stateful TCP/IPv6 (980 Mbps+ bi-directional with 64K byte writes (1500 byte MTU)on GigE), UDP/Ipv4 (990 Mbps+ bi-directional with 64K byte PDUs (1500 byte MTU) on GigE), UDP/IPv6 (990 Mbps+ bi-directional with 64K byte PDUs (1500 byte MTU) on GigE).