![Layer 2 Data Link Frame](http://s1.studyres.com/store/data/008736832_1-02f604dc36126347e7c136157bc3d150-300x300.png)
Layer 2 Data Link Frame
... What does a router do with a packet received from one network and destined for another network? 1. Decapsulates the Layer 3 packet by removing the Layer 2 frame header and trailer 2. Examines the destination IP address of the IP packet to find the best path in the ...
... What does a router do with a packet received from one network and destined for another network? 1. Decapsulates the Layer 3 packet by removing the Layer 2 frame header and trailer 2. Examines the destination IP address of the IP packet to find the best path in the ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... In the last 15 years there are many different technologies used in transmission of network traffic from source to destination. Asynchronous Transfer Mode (ATM), Frame Relay, and PPP were included in these technologies. They are all useful and having their own benefits but there are some difficulties ...
... In the last 15 years there are many different technologies used in transmission of network traffic from source to destination. Asynchronous Transfer Mode (ATM), Frame Relay, and PPP were included in these technologies. They are all useful and having their own benefits but there are some difficulties ...
Firewall Labs
... Stateful filters: example • Log each TCP connection initiated through firewall: SYN segment ...
... Stateful filters: example • Log each TCP connection initiated through firewall: SYN segment ...
Virtual Private Networks (VPNs)
... FortiOS IPsec VPN FortiOS IPsec VPN supports all of the common industry standard IPsec features, including IKE v1 and v2, manual keys, static and dynamic gateway IP addresses, aggressive and main mode negotiation, pre-shared keys, X.509 security certificates, extended authentication (XAUTH), Diffie ...
... FortiOS IPsec VPN FortiOS IPsec VPN supports all of the common industry standard IPsec features, including IKE v1 and v2, manual keys, static and dynamic gateway IP addresses, aggressive and main mode negotiation, pre-shared keys, X.509 security certificates, extended authentication (XAUTH), Diffie ...
SPRINT PLANS Sprint Government Pricing Plans for South Carolina
... Plan if such Wireless Data Connection Device exceeds 300 MB/month of usage while Roaming and Customer received proactive notification from Sprint that the 300MB/month roaming threshold was about to be exceeded or engages in the following prohibited uses: server devices or host computer. Applications ...
... Plan if such Wireless Data Connection Device exceeds 300 MB/month of usage while Roaming and Customer received proactive notification from Sprint that the 300MB/month roaming threshold was about to be exceeded or engages in the following prohibited uses: server devices or host computer. Applications ...
Motorola 2247-62-10NA AdminHandbookV782
... Most users will find that the basic Quickstart configuration is all that they ever need to use. This section may be all that you ever need to configure and use your Motorola Netopia® Gateway. The following instructions cover installation in Router Mode. ❑ “Important Safety Instructions” on page 9 “W ...
... Most users will find that the basic Quickstart configuration is all that they ever need to use. This section may be all that you ever need to configure and use your Motorola Netopia® Gateway. The following instructions cover installation in Router Mode. ❑ “Important Safety Instructions” on page 9 “W ...
The Internet and Its Uses - Mt. Hood Community College
... When an incoming data frame is received by a switch and the destination MAC address is not in the table, the switch forwards the frame out all ports, except for the port on which it was received. When the destination node responds, the switch records the node's MAC address in the address table fro ...
... When an incoming data frame is received by a switch and the destination MAC address is not in the table, the switch forwards the frame out all ports, except for the port on which it was received. When the destination node responds, the switch records the node's MAC address in the address table fro ...
Underground Sensor Networks: Research Challenges
... Open Research Issues in NETWORK LAYER End-to-end QOS guarantees are not easy to achieve! When sensed data from the field is sent via the Internet, a single routing metric is unsuitable for the entire path between source and end user. Decoupling of reliability and routing parameters at such ne ...
... Open Research Issues in NETWORK LAYER End-to-end QOS guarantees are not easy to achieve! When sensed data from the field is sent via the Internet, a single routing metric is unsuitable for the entire path between source and end user. Decoupling of reliability and routing parameters at such ne ...
Sonicwall - Shalimar Infonet
... Network Security Appliances — PRO Series SonicWALL PRO 5060 The PRO 5060, SonicWALL‘s flagship PRO Series appliance, provides an enterprise-class, multi-service, gigabit network security platform that protects users and critical network resources from the dynamic, sophisticated threats that put tod ...
... Network Security Appliances — PRO Series SonicWALL PRO 5060 The PRO 5060, SonicWALL‘s flagship PRO Series appliance, provides an enterprise-class, multi-service, gigabit network security platform that protects users and critical network resources from the dynamic, sophisticated threats that put tod ...
IP Networks Curriculum
... Understanding the Basics of Wireless Communications™ ............................................................................................................. 15 Understanding Radio Fundamentals™ .................................................................................................... ...
... Understanding the Basics of Wireless Communications™ ............................................................................................................. 15 Understanding Radio Fundamentals™ .................................................................................................... ...
Overview Discovery & Exploration
... there will be a great new revised version of the CCNA Curricula that will integrate seamlessly into our Small Learning Communities SLC's” (US/Canada) ...
... there will be a great new revised version of the CCNA Curricula that will integrate seamlessly into our Small Learning Communities SLC's” (US/Canada) ...
Emerging_Wireless_Standards2
... antennas, or a combination of both. • Beamforming techniques are an alternative to directly increase the desired signal energy while suppressing, or nulling, interfering signals. • In contrast to diversity and beamforming, spatial multiplexing allows multiple data streams to be simultaneously transm ...
... antennas, or a combination of both. • Beamforming techniques are an alternative to directly increase the desired signal energy while suppressing, or nulling, interfering signals. • In contrast to diversity and beamforming, spatial multiplexing allows multiple data streams to be simultaneously transm ...
Remote Access VPN Setup (IPSec)
... transport traffic over the internet of any insecure network that uses TCP/IP communications. A remote access VPN (client-to-site) allows employees who are traveling or teleworkers, secure access to company network resources. ...
... transport traffic over the internet of any insecure network that uses TCP/IP communications. A remote access VPN (client-to-site) allows employees who are traveling or teleworkers, secure access to company network resources. ...
PPT - Communications
... "The number of input datagrams for which this entity was not their final IP destination, as a result of which an attempt was made to find a route to forward them to that final destination. In entities which do not act as IP Gateways, this counter will include only those packets which were Source-Rou ...
... "The number of input datagrams for which this entity was not their final IP destination, as a result of which an attempt was made to find a route to forward them to that final destination. In entities which do not act as IP Gateways, this counter will include only those packets which were Source-Rou ...
ITE PC v4.0 Chapter 1 - Devi Ahilya Vishwavidyalaya
... provides the stable and reliable channel over which communication can occur. It is made up of network components including end devices, intermediate devices, and network media. ...
... provides the stable and reliable channel over which communication can occur. It is made up of network components including end devices, intermediate devices, and network media. ...
ZTE ZXDSL 931VII Netvigator Manual
... The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution of this document or any portion of this document, in any form by any means, without the prior written consent of ZTE CORPORATION is prohibited. Additionally, the contents of thi ...
... The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution of this document or any portion of this document, in any form by any means, without the prior written consent of ZTE CORPORATION is prohibited. Additionally, the contents of thi ...
Virtual Private Networks (VPN`s)
... Extranet-based - When a company has a close relationship with another company (for example, a partner, supplier or customer), they can build an extranet VPN that connects LAN to LAN, and that allows all of the various companies to work in a ...
... Extranet-based - When a company has a close relationship with another company (for example, a partner, supplier or customer), they can build an extranet VPN that connects LAN to LAN, and that allows all of the various companies to work in a ...
Linksys E2000 User Guide
... Chapter 1: Product Overview Thank you for choosing the Linksys E2000 Advanced Wireless-N Router. The Router lets you access the Internet via a wireless connection or through one of its four switched ports. You can also use the Router to share resources, such as computers, printers and files. A varie ...
... Chapter 1: Product Overview Thank you for choosing the Linksys E2000 Advanced Wireless-N Router. The Router lets you access the Internet via a wireless connection or through one of its four switched ports. You can also use the Router to share resources, such as computers, printers and files. A varie ...
Chapter 15 - William Stallings, Data and Computer
... – frames are not broadcast at all times (as in hubs), unless the MAC broadcast address (all bits are 1s) is used – MAC broadcasts necessary in some situations, e.g., ARP (address resolution protocol, sender knows destination’s IP address but seeks unknown MAC address) – broadcast frames are delivere ...
... – frames are not broadcast at all times (as in hubs), unless the MAC broadcast address (all bits are 1s) is used – MAC broadcasts necessary in some situations, e.g., ARP (address resolution protocol, sender knows destination’s IP address but seeks unknown MAC address) – broadcast frames are delivere ...
Network Protocols Pre.
... Do not duplicate all error information. Copying process has lower priority and some packets might not be mirrored. Misses out on traffic on the local link. ...
... Do not duplicate all error information. Copying process has lower priority and some packets might not be mirrored. Misses out on traffic on the local link. ...
Employing a secure Virtual Private Network (VPN)
... Internet medium or across unsecured networks. ...
... Internet medium or across unsecured networks. ...
Class Seven
... Routers send periodic Hello messages to each other. The packet contains: The router’s selection of the DR and BDR Router’s priority used to determine the DR and BDR Configurable timers that include: Hello Interval – To determine when you should hear from a ...
... Routers send periodic Hello messages to each other. The packet contains: The router’s selection of the DR and BDR Router’s priority used to determine the DR and BDR Configurable timers that include: Hello Interval – To determine when you should hear from a ...
LTE Broadband 11n Wireless Router MBR1515 User Manual
... PIN, IMEI or ESN number, and factory default login information. It also contains the SSID and passphrase that are unique to each router. Default access address, user name, and password ...
... PIN, IMEI or ESN number, and factory default login information. It also contains the SSID and passphrase that are unique to each router. Default access address, user name, and password ...
Wireless security
![](https://commons.wikimedia.org/wiki/Special:FilePath/ADSL_router_with_Wi-Fi_(802.11_b-g).jpg?width=300)
Wireless security is the prevention of unauthorized access or damage to computers using wireless networks. The most common types of wireless security are Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). WEP is a notoriously weak security standard. The password it uses can often be cracked in a few minutes with a basic laptop computer and widely available software tools. WEP is an old IEEE 802.11 standard from 1999, which was outdated in 2003 by WPA, or Wi-Fi Protected Access. WPA was a quick alternative to improve security over WEP. The current standard is WPA2; some hardware cannot support WPA2 without firmware upgrade or replacement. WPA2 uses an encryption device that encrypts the network with a 256-bit key; the longer key length improves security over WEP.Many laptop computers have wireless cards pre-installed. The ability to enter a network while mobile has great benefits. However, wireless networking is prone to some security issues. Hackers have found wireless networks relatively easy to break into, and even use wireless technology to hack into wired networks. As a result, it is very important that enterprises define effective wireless security policies that guard against unauthorized access to important resources. Wireless Intrusion Prevention Systems (WIPS) or Wireless Intrusion Detection Systems (WIDS) are commonly used to enforce wireless security policies.The risks to users of wireless technology have increased as the service has become more popular. There were relatively few dangers when wireless technology was first introduced. Hackers had not yet had time to latch on to the new technology, and wireless networks were not commonly found in the work place. However, there are many security risks associated with the current wireless protocols and encryption methods, and in the carelessness and ignorance that exists at the user and corporate IT level. Hacking methods have become much more sophisticated and innovative with wireless access. Hacking has also become much easier and more accessible with easy-to-use Windows- or Linux-based tools being made available on the web at no charge.Some organizations that have no wireless access points installed do not feel that they need to address wireless security concerns. In-Stat MDR and META Group have estimated that 95% of all corporate laptop computers that were planned to be purchased in 2005 were equipped with wireless cards. Issues can arise in a supposedly non-wireless organization when a wireless laptop is plugged into the corporate network. A hacker could sit out in the parking lot and gather information from it through laptops and/or other devices, or even break in through this wireless card–equipped laptop and gain access to the wired network.