Packet Sniffer? (Use Jpcap or npcap,.(libraries if you are going to use java. READ the Docs.)). Doing this using python is alot easier though.  Port Scanner? (This one is easier, requires so much less work.) and there might be another one? make an app that pings a host or a network in multi-thread multiple times (user able to set the number of pings per second). This could act as a Dos attac... (more)

Packet Sniffer? (Use Jpcap or npcap,.(libraries if you are going to use java. READ the Docs.)). Doing this using python is alot easier though.  Port Scanner? (This one is easier, requires so much less work.) and there might be another one? make an app that pings a host or a network in multi-thread multiple times (user able to set the number of pings per second). This could act as a Dos attac... (more)

Packet Sniffer? (Use Jpcap or npcap,.(libraries if you are going to use java. READ the Docs.)). Doing this using python is alot easier though.  Port Scanner? (This one is easier, requires so much less work.) and there might be another one? make an app that pings a host or a network in multi-thread multiple times (user able to set the number of pings per second). This could act as a Dos attac... (more)

Configure the other router (in which 2,3,4 ports are connected to printer) as Access Point. The option is available in BASIC/General Settings  The option is easily available on D-Link Routers. Otherwise buying a switch is the best option. A switch with four ports(D-Link) will cost u around Rs.500 and your job will be done easily.

Dear, If you want to buy a new laptop buy  Minimum i5 @2.30GHz ,16GB RAM ,500GB HDD for CCIE security.

You have to go to Network and Sharing center in control panel, and turn on the file sharing option and disable password protection sharing, 

After that go to Network Section from the left panel in Windows Explorer, there you will find your PC name, access it from there.. 

Mac address was used in earlier days when the network was too small, the problem with MAC address was that it does not provide us any sense of host and network scheme.. where as IP address is a hierarchical addressing scheme which tells you the network and host part. therefore IP address was thought to be more efficient for larger networks, therefore IP address is used widely in Inter-networking(L... (more)

Basically, you are trying to merge 4 different wireless connections' bandwidth. 1. You will need four wireless adapters, if you are using laptop, buy USB wireless adapters(if using Desktop buy PCI slots NIC). 2. Install all the wireless adapters in your laptop 3. Connect each WiFi to different USB wireless adapters. Now to merge the bandwidth of four different WiFi follow these steps:-  ... (more)

Basically, you are trying to merge 4 different wireless connections' bandwidth. 1. You will need four wireless adapters, if you are using laptop, buy USB wireless adapters(if using Desktop buy PCI slots NIC). 2. Install all the wireless adapters in your laptop 3. Connect each WiFi to different USB wireless adapters. Now to merge the bandwidth of four different WiFi follow these steps:-  ... (more)

Original Ethernet Header is known as 802.3 Header which is used to carry any layer 2 protocol on ethernet link example bpdu , cdp , dtp , vtp etc. all these protocls are carried by 802.3  [ These layer-2 protocols are identified either LLC or Pid field ] Ethenet 2 Header is used to carry Layer 3 protocols on Ethernet Link example ipv4 , ipv6  above it. [ These Layer 3 protocols are identi... (more)

Original Ethernet Header is known as 802.3 Header which is used to carry any layer 2 protocol on ethernet link example bpdu , cdp , dtp , vtp etc. all these protocls are carried by 802.3  [ These layer-2 protocols are identified either LLC or Pid field ] Ethenet 2 Header is used to carry Layer 3 protocols on Ethernet Link example ipv4 , ipv6  above it. [ These Layer 3 protocols are identi... (more)

http://www.cisco.com/c/en_in/products/index.html

open the link.. Probably the best place to get to know about all the Devices and Specs.

EIGRP: Enhanced Interior Gateway Routing Protocol

RIP: Routing Information Protocol

OSPF: Open Shortest Path First

VTP: Virtual trunking protocol

VLAN: Virtual Local Area Network

STP: Spanning Tree Protocol

IS-IS: Intermediate System - Intermediate System

MPLS: Multiprotocol Label Switching

BGP: Border Gateway Protocol

Setup CCIE R&S version 5 lab at home using VMware&EVE-ng on your laptop. To do this, you need to meet the following requirements:- 1. Laptop with RAM of atleast 12GB for proper functioning. 2. VMware Workstation Installed on Laptop  3. Download  Eve-ng      Link:  http://www.unetlab.com/index.php/downloads/eve-ng 4. Install Eve       to get help with EVE-ng you can watch tutor... (more)