Main Menu show clock show interace fastethernet 0/N show ip dhcp binding show ip interface brief show ip route show running-config show interface fastethernet 0/N Sw1#show interface fastethernet 0/2 FastEthernet0/2 is up, line protocol is up (connected) FastEthernet0/2 is up = Status (Physical Layer) line protocol is up = Protocol (Data Link Layer) Hardware is ..
Archives : September-2015
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Reverse Engineering is the most common form of subnetting. You’ll start with an IP address and Subnet Mask. Is this IP Address Valid? What Subnet Range does it belong to? Is it on the same subnet as the others plugged in? Scenario #1: 192.168.1.127 / 255.255.255.224 /27 = 11100000 = 32 Increment 192.168.1.0 – 192.168.1.31 ..
This article outlines the steps required to break a Class A, B or C network down into multiple Subnets as defined by the number of Hosts required for each subnet. Several examples are provided below, along with practice exercises (actual answers not provided.) Use these examples to work on your speed! Goal: 2 – 3 ..
This article outlines the steps required to break a Class A, B or C Network and break it down into multiple subnets as defined by the required number of subnets. At the bottom of the page, several examples are provided, as well as several test scenarios (actual answers not provided.) The Three Steps of ..
Reviewing the basics of IP IPv4 Addresses: 4 Octet Address, each octet = 1 byte. 32 Total Bits Can be one of 3 classes, A, B or C A: 001 – 126, 16,777,214 Hosts (256^3 – 2) B: 128 – 191, 65,534 Hosts (256^2 – 2) C: 192 – 223, 254 Hosts (256 – 2) ..
Understanding the Dangers of Wireless Networks Wardriving: Driving around an area looking for open networks. Hackers: People looking to steal information or simply perform malicious behavior. Employees: Companies that block Wi-Fi trying to create security, but employees create their own to enable wi-fi functionality. Wireless Security Authentication Require Username and Password May limit to specific ..
Types of Wireless Networks PAN: Personal Area Network – Wireless Mouse, Bluetooth, very short distance LAN: Local Area Network – replace or suppliment your wired LAN MAN: Metropolitan Area Network – Uses Point to Point Wireless Bridges to allow network to extend several miles. WAN: Wide Area Network – Cellular. Wireless LAN Facts Wireless ..
Configuring Speed and Duplex By default both Speed and Duplex are set to “Auto” Auto-detect Speed works every time. Auto-detect Duplex can fail if both the switch and the device are set to auto detect. DUPLEX MISMATCH: duplex mismatch discovered on FastEthernet 0/1 (not half duplex), with AccessServer Ethernet (half duplex). You will only see ..
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