Archive for the ‘ITN’ Category

Remote-Access VPNs

Posted: 28th June 2020 by ccna7guru in ITN

In the previous topic you learned about the basics of a VPN. Here you will learn about the types of VPNs. VPNs have become the logical solution for remote-access connectivity for many reasons. As shown in the figure, remote-access VPNs let remote and mobile users securely connect to the enterprise by creating an encrypted tunnel. […]

Hello Packet in OSPFv2

Posted: 6th June 2020 by ccna7guru in ITN

The OSPF Type 1 packet is the Hello packet. Hello packets are used to do the following: Discover OSPF neighbors and establish neighbor adjacencies. Advertise parameters on which two routers must agree to become neighbors. Elect the Designated Router (DR) and Backup Designated Router (BDR) on multiaccess networks like Ethernet. Point-to-point links do not require […]


Posted: 1st June 2020 by ccna7guru in ITN

VTP version 3 provides some significant benefits to the network administrator: The ability to create a primary server was added. In VTP versions 1 and 2, all VTP server switches are equal; any one of them may add, remove, or rename VLANs and change their state. In VTP version 3, only the primary server can […]

Types of Malware

Posted: 31st May 2020 by ccna7guru in ITN

Adware Adware is usually distributed by downloading online software. Adware can display unsolicited advertising using pop-up web browser windows, new toolbars, or unexpectedly redirect a webpage to a different website. Pop-up windows may be difficult to control as new windows can pop-up faster than the user can close them. Ransomware Ransomware typically denies a user […]

Router as DHCP Server

Posted: 30th May 2020 by ccna7guru in ITN

Step I: Create the dhcp pool by NameRouter(config)#ip dhcp pool pool1 Step II: Assign network of IP addressRouter(dhcp-config)#network Step III: Assign a default gateway to that above mentioned poolRouter(dhcp-config)#default-router Step IV: Assign a dns to that above mentioned poolRouter(dhcp-config)#dns-server Router(dhcp-config)#?default-router Default routersdns-server Set name serverexit Exit from DHCP pool configuration modenetwork […]

NetAcad Digital Badges

Posted: 10th May 2020 by ccna7guru in ITN

A digital badge is a verified, portable and data-rich digital representations of demonstrated skills, learning outcome, achievement or experience.

Lab – Install Wireshark

Posted: 24th April 2020 by ccna7guru in ITN

Instructions Wireshark has become the industry standard packet-sniffer program used by network engineers. This open source software is available for many different operating systems, including Windows, Mac, and Linux. In this lab, you will download and install the Wireshark software program on your PC. Note: Before downloading Wireshark, check with your instructor about the software […]

Change Host Name

Posted: 20th April 2020 by ccna7guru in ITN

Change Host Name1- Open the Packet Tracer2- Place a Router-PT + Laptop / PC3- Connect PC RS-232 port to Console Port using Console Cable4- Click at PC-> Desktop-> Terminal -> Press [OK]Do you wanna configure y/n: N Router>enableRouter#configRouter(config)#hostname CCNACCNA(config)#exitCCNA#writeCCNA#reload

Router Mode

Posted: 20th April 2020 by ccna7guru in ITN

Router Ports:1- Console Portfor console sessionpassword recoverybasic configuration2- Serial Portto remote access/ ssh telnet3- Ethernet Portto remote access ssh telnet4- Aux Portto remote access / modem We have mode of router1- User Exec ModeRouter> 2- User Privelege ModeRouter> enableRouter# # root / administrator in Linux 3- Global Configuration ModeRouter# config terminalRouter(config)#4- Other Modeinterface modedhcp modevlan […]


Posted: 19th April 2020 by ccna7guru in ITN

CCNAv7: Introduction to Networks (ITN)The first course in the CCNA curriculum introduces the architectures, models, protocols,and networking elements that connect users, devices, applications and data through the Internet and across modern computer networks – including IP addressing and Ethernet fundamentals. By the end of the course, students can build simple local area networks (LAN) that […]