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July 25 2011

September 14 2010

<ver> i wish ipv6 in ios made more sense.
— irc://irc.freenode.org/ipv6
Tags: IOS cisco ipv6
Reposted byit-failipv6-group4poc

September 12 2010

GNS3 | Graphical Network Simulator

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

To allow complete simulations, GNS3 is strongly linked with :

* Dynamips, the core program that allows Cisco IOS emulation.
* Dynagen, a text-based front-end for Dynamips.
* Qemu, a generic and open source machine emulator and virtualizer.

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

This project is an open source, free program that may be used on multiple operating systems, including Windows, Linux, and MacOS X.
Reposted bysicksinopalodefuego

Welcome to GNS3 Vault


Cool Scenarios to get the maximum out of your networking experience ;)

Downloadable topologies that you can use right away with the GNS3 software.

Different levels of difficulty, there's something for everyone...novice, intermediate and expert!

The forum where you can discuss about all the labs.

It's possible to review labs.

You can share your labs with others.
Reposted bysicksin sicksin

June 11 2010

IPv6 CPE Survey | RIPE Labs

This article is an attempt to collect and present up-to-date information on the IPv6-readiness of Customer Premises Equipment (CPE) from various vendors. This is an ongoing project, and we are currently seeking feedback from as many vendors as possible.

April 01 2010


To help combat world-wide congestion on the public Internet, Cisco has developed an extension to its Network-Based Application Recognition (NBAR) engine on IOS routers. The NBAR flesh tone detection feature performs deep packet inspection (DPI) on supported protocols to detect pornographic images for (de)prioritization.

Flesh tones are the beige/brown colors common to human skin pigments. Images with a high percentage of pixels set to these colors carry a high probability of being pornographic in nature. NBAR flesh tone detection is able to process images carried by NBAR-supported protocols like HTTP and FTP and heuristically detect and mark packets carrying suspect image fragments for prioritization.

NBAR flesh tone detection, powered by Cisco's proprietary Flexible Advanced Pornographic Protocol Recognition (FAPPR) algorithm, currently supports JPG, PNG, TIFF, GIF, and animated GIF image formats of up to 2048x2048 pixels.

NBAR Flesh tone Detection Configuration

Flesh tone detection is applied to a class map similar to any other NBAR match statement. A percentage of pixels must be specified between 1 and 100.

Router(config)# class-map hardcore
Router(config-cmap)# match flesh-tone percentage 75

At this point, the class map can be applied to an NBAR traffic policy to prioritize and/or mark traffic.

Router(config)# policy-map skintastic
Router(config-pmap)# class hardcore
Router(config-pmap-c)# priority percent 90
Router(config-pmap-c)# interface f0/0
Router(config-if)# service-policy input skintastic
NBAR Flesh Tone Detection - Packet Life

July 06 2009

Shrew Soft Inc : Software

The Shrew Soft VPN Client for Windows is a free IPsec Remote Access VPN Client for Windows 2000, XP and Vista operating systems ( x86 and amd64 versions ). It was originally developed to provide secure communications between mobile Windows hosts and open source VPN gateways that utilize standards compliant software such as ipsec-tools, OpenSWAN, FreeSWAN, StrongSWAN, isakmpd. It now offers many of the advanced features only found in expensive commercial software solutions and provides compatibility for VPN appliances produced by vendors such as Cisco, Juniper, Checkpoint, Fortinet, Netgear, Linksys, Zywall and many others.
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