CCNP Route 642-902 Cert Kit

CCNP Route 642-902 Cert Kit

Interesting ...

GNS3 configuration

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Au premier lancement de GNS3

 

1 - Vérification de Dynamips et des  répertoires de travail

2 - Configuration du repertoire stockant les IOS

3 - Ajout des images IOS (c3725-adventerprisek9-mz.124-15.T14.bin dans notre exemple)

Configuration de "Idle PC" pour reduire l'utilisation excessive du CPU

1. Demarrage du routeur (ou clic droit sur le routeur/Start)
2. Etat du routeur (Rouge: arreté, Verte: demarré)
3. Configuration de la valeur "Idle PC"
4. Valeur optimale marquée avec '*'

Configuration de base faite.
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Next: GNS3 with VMWare

GNS3: graphical network simulator

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.

Thanks to VirtualBox integration, now even system engineers and administrators can take advantage of GNS3 to make labs and study for Redhat (RHCE, RHCT), Microsoft (MSCE, MSCA), Novell (CLP) and many other vendor certifications.

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

Users have to provide their own IOS/IPS/PIX/ASA/JunOS to use in their labs with GNS3. 

Next: GNS3 Configuration

Network Tools

Non-exhaustive lists

Status monitoring

• ping         Check node/hosts status
  
• ifconfig    Obtains and configures networking interface status and parameter
• dig           Query DNS server
  
• host         Display informations on Internet hosts/domains
• nslookup Looks up DNS for name-IP address translation

 Traffic Monitoring Tool

• Bing/iperf   Measures point-to-point bandwidth of a link
• Etherfind    Inspect Ethernet packets
• Snoop         Captures and inspects network packets
• Tcpdump     Dumps traffic on a network
• Getethers   Acquires all host addresses of an Ethernet LAN segment
• Iptrace        Measures performance of gateways     UNIX
• MRTG/Rrdtool     Monitors the traffic load on network-links

Router Monitoring Tool

• Netstat     Displays the contents of various network-related data structure
• ARP / RARP     Displays and modifies the IP-to-Ethernet address table
• RANCID     Monitors a router's (or other devices) configuration
• Traceroute/ tracert     Trace route to a destination with routing delays
• Cacti

Trouble- shooting Tool

• BERT: Bit Error Rate Tester     Tests bit error and block error in a broadband access network using modem.
• Ethereal / Wireshark             Captures traffic, perform protocol analysis

Network Security Tool

• Nessus     Vulnerability assessment tool
• Snort     open source IDS
• Netcat     Reads and writes data across TCP or UDP network connections

Network Exploration & Hacking

• Nmap

 Live CD

•  Backtrack

  ...
    

Facebook NetRange

Facebook netrange (Plage d'adresse IP du site Facebook)

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NetRange:       204.15.20.0 - 204.15.23.255

CIDR:           204.15.20.0/22

NetRange:       66.220.144.0 - 66.220.159.255

CIDR:           66.220.144.0/20

NetRange:       69.63.176.0 - 69.63.191.255

CIDR:           69.63.176.0/20

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