Download Cisco IOS 12.4

I am really sorry for delay but its totally done. Please download document file first for information.

This is my collection of Cisco IOS for use with Dynamips.

The originals .bin files has been unzipped and renamed to .image, and recompressed with RAR to save disk space. Dynamips works better with an unzipped IOS,
the router boot faster. You need to decompress the file with WinRar, UnRar, 7Zip, etc, to obtain the .image file and store it in the image folder.

This compilation includes several IOS for PIX (IOS and ASDM) and special IOS called Pagent and Callgen.

Pagent is a set of data networking test tools, based on the Cisco IOS (Internetwork Operating System) and developed within Cisco. The test tools are included in special IOS
Pagent images.

Callgen is a set of Voice-Over-IP networking test tools, based on the Cisco IOS and developed within Cisco. The test tools are included in special IOS Callgen images.

The primary function of the Pagent and Callgen toolsets is to provide cost effective test tools to the Cisco testing community. The secondary function is to provide testing
capabilities that are not available anywhere else and can be used in customer environments. One essential function is to generate valid simulated traffic necessary for testing
networks under stress. The tools are not able to test the physical network layer and some parts of the data-link layer; that is, they can not affect frame checksums, preambles, inter
frame gap times, inject hardware failures, or transmit invalid packet sizes.

The Pagent programs are best used for testing layer 3 protocols and above; that is, emulating routing protocols, multicast, TCP sessions and HTTP sessions.

Pagent is an enhanced Cisco IOS image that contains both Advanced IP or IP Base Services and the IP traffic generation tools. Pagent generates realistic traffic and bottlenecks to
test QoS features such as IP Classification, IP Marking, and Queuing.

CallGen is a Cisco IOS-based bulk call generation tool implemented through extensions to the regular Cisco IOS image, which provides commands and utilities used to simulate
originating and terminating calls on routers and access servers.

The file "Patch for Dynamips.txt" contains the instructions for patch Dynamips (for use with Dynagen or GNS3) to use this IOS. In every folder, the TXT file includes the description of
all IOS: name, features and RAM memory in Mb.

Please download me first for check all versions and your requirement.

C1700 All Released Versions
C2600 All Released Versions
C2691 All Released Versions
C3620 All Released Versions
C3640 All Released Versions
C3660 All Released Versions
C3725 All Released Versions
C3745 All Released Versions
C7200 All Released Versions
CallGen All Released Versions
Pagent All Released Versions
PIX All Released Versions & Serials

Dynagen

Dynagen is a text-based front-end for Dynamips, which uses the “Hypervisor” mode for communication with Dynamips. This can be the way to go if you do not want to install GNS3 for whatever reason. Dynagen is no longer officially maintained (official website here); however Dynagen is still updated and developed for GNS3, this means you can download GNS3 sources, find Dynagen and start it. We are going to provide a package one this page soon.

We also intend to update the official tutorial.

Dynamips

Dynamips is a software that emulates Cisco IOS on a traditional PC. It has been made by Christophe Fillot who started his work in August 2005. The last official release of Dynamips supports Cisco 7200, 3600 series (3620, 3640 and 3660), 3700 series (3725, 3745), 2600 series (2610 to 2650XM, 2691) and 1700 series. It is very popular with people studying for CCNA (Cisco Certified Network Associate), CCNP (Cisco Certified Network Professional) and CCIE (Cisco Certified Internetwork Expert) certification exams. Please note that you must provide your own IOS images compatible with the Cisco hardware emulated by Dynamips.

GNS3 is based on Dynamips and Dynagen (a text-based front-end for Dynamips) to create a complete virtual Cisco network, adding many additional features and most importantly making it easy to create, change and save your network topologies.

Unfortunately, Dynamips is no longer officially maintained, this is why we have chosen to make – with the precious help of contributors – an unofficial version of Dynamips called dynamips-community that brings many improvements.

Hardware emulated by GNS3

Cisco 1700 Series

1700s have one or more interfaces on the motherboard, 2 subslots for WICs (excepting on 1710s), an no NM slots.

1710

• 1 FastEthernet and 1 Ethernet fixed ports (CISCO1710-MB-1FE-1E).
• WIC slots: 0
• Note that interfaces do not use a slot designation (e.g. “f0”)

1720, 1721 and 1750

• 1 FastEthernet fixed port (C1700-MB-1ETH).
• WIC slots: 2 (maximum of 2 Ethernet ports or 4 serial ports).
• Note that interfaces do not use a slot designation (e.g. “f0”)

1751 and 1760

• 1 FastEthernet fixed port (C1700-MB-1ETH).
• WIC slots: 2 (maximum of 2 Ethernet ports or 4 serial ports).

WIC cards

• WIC-1T (1 serial port)
• WIC-2T (2 serial ports)
• WIC-1ENET (1 Ethernet ports)

What is GNS3 ?

GNS3 is a graphical network simulator that allows simulation of complex networks.

To provide complete and accurate simulations, GNS3 is strongly linked with:

• Dynamips, a Cisco IOS emulator.
• Dynagen, a text-based front end for Dynamips.
• Qemu, a generic and open source machine emulator and virtualizer.
• VirtualBox, a free and powerful virtualization software.

GNS3 is an excellent complementary tool to real labs for network engineers, administrators and people wanting to study for certifications such as Cisco CCNA, CCNP, CCIP and CCIE as well as Juniper JNCIA, JNCIS and JNCIE.

It can also be used to experiment features of Cisco IOS, Juniper JunOS or to check configurations that need to be deployed later on real routers.