UbiCom Book Figures - Queen Mary University of London
... • Bluetooth applications include both local communication and increasingly local control. • Unlike IR, Bluetooth does not require a line of sight between the transmitter and receiver. • Current Bluetooth devices and applications include: ? ...
... • Bluetooth applications include both local communication and increasingly local control. • Unlike IR, Bluetooth does not require a line of sight between the transmitter and receiver. • Current Bluetooth devices and applications include: ? ...
Vodafone Broadband Complete User Guide
... 1. Connect the supplied red PC/LAN cable to any of the four LAN ports on the rear panel of your Vodafone Broadband Complete and plug the other end into the Ethernet port on your computer. 2. The Ethernet indicator on your computer and the DSL indicator on the front of your Broadband Complete device ...
... 1. Connect the supplied red PC/LAN cable to any of the four LAN ports on the rear panel of your Vodafone Broadband Complete and plug the other end into the Ethernet port on your computer. 2. The Ethernet indicator on your computer and the DSL indicator on the front of your Broadband Complete device ...
Document
... Both sending and receiving computers need to perform each step in the same way so that the data will have the same structure when it is received as it did when it was sent. For example, two different protocols might each break data into packets and add on various sequencing, timing, and error-checki ...
... Both sending and receiving computers need to perform each step in the same way so that the data will have the same structure when it is received as it did when it was sent. For example, two different protocols might each break data into packets and add on various sequencing, timing, and error-checki ...
Routing Protocols in Mobile Ad
... an internetwork. The later concept is called as packet switching which is straight forward, and the path determination could be very complex[4]. Routing protocols use several metrics to calculate the best path for routing the packets to its destination. These metrics are a standard measurement that ...
... an internetwork. The later concept is called as packet switching which is straight forward, and the path determination could be very complex[4]. Routing protocols use several metrics to calculate the best path for routing the packets to its destination. These metrics are a standard measurement that ...
MCITP Guide to Microsoft Windows Server 2008 Server
... • Verify VPN or dial-up RAS server is started • Check the network interface • Ensure IP parameters are correctly configured to provide an address pool for either a VPN or dial-up RAS server • If using a RADIUS server: – Ensure it is connected and working properly and that Internet Authentication Ser ...
... • Verify VPN or dial-up RAS server is started • Check the network interface • Ensure IP parameters are correctly configured to provide an address pool for either a VPN or dial-up RAS server • If using a RADIUS server: – Ensure it is connected and working properly and that Internet Authentication Ser ...
An Overview of Embedded Sensor Networks
... reviewing protocols we briefly describe MAC-related sources of energy consumption [79]. Packet collisions waste energy by forcing packets to be retransmitted, idle listening is the cost of actively listening for potential packets, overhearing is the cost of receiving packets intended for other desti ...
... reviewing protocols we briefly describe MAC-related sources of energy consumption [79]. Packet collisions waste energy by forcing packets to be retransmitted, idle listening is the cost of actively listening for potential packets, overhearing is the cost of receiving packets intended for other desti ...
www.uettaxila.edu.pk
... and rural areas Broad coverage like the cell phone network instead of small WiFi hotspots This system is actually coming into being right now, and it is called WiMAX. WiMAX is short for Worldwide Interoperability for Microwave Access, and it also goes by the IEEE name 802.16. ...
... and rural areas Broad coverage like the cell phone network instead of small WiFi hotspots This system is actually coming into being right now, and it is called WiMAX. WiMAX is short for Worldwide Interoperability for Microwave Access, and it also goes by the IEEE name 802.16. ...
A Review on Routing Information Protocol (RIP) and Open Shortest
... congestion by allowing edge nodes to choose a better transportation policy. The implementation of S-OSPF is hard to current network routers since they are set with unique configurations by various vendors, individually. The present routers do not have function of allocating traffic. We need to add t ...
... congestion by allowing edge nodes to choose a better transportation policy. The implementation of S-OSPF is hard to current network routers since they are set with unique configurations by various vendors, individually. The present routers do not have function of allocating traffic. We need to add t ...
EE392n_Lecture9cisco
... • High data rates, real-time or near real-time information availability requirement • Best pushed over Ethernet or Wi-Fi type speeds to deliver needed data rates • Variation: leverage common multi-service network with substation automation • Technique: segregate traffic classes within virtual privat ...
... • High data rates, real-time or near real-time information availability requirement • Best pushed over Ethernet or Wi-Fi type speeds to deliver needed data rates • Variation: leverage common multi-service network with substation automation • Technique: segregate traffic classes within virtual privat ...
Introduction to Information Security Chapter 2
... understanding security issues in OSes, and help determine how much effort required to enhance system security Attempted to develop methodologies and software for detecting some problems, and techniques for avoiding and ameliorating other problems ...
... understanding security issues in OSes, and help determine how much effort required to enhance system security Attempted to develop methodologies and software for detecting some problems, and techniques for avoiding and ameliorating other problems ...
VoIP Performance in SIP-Based Vertical Handovers Between WLAN
... and interworks with external packet-switched networks. The GGSN is connected with SGSNs via an IP-based GPRS backbone network. Finally, the Home Location Register (HLR) contains subscriber data and enables access to the packetswitched domain services. The HLR is included within the HSS (Home Subscri ...
... and interworks with external packet-switched networks. The GGSN is connected with SGSNs via an IP-based GPRS backbone network. Finally, the Home Location Register (HLR) contains subscriber data and enables access to the packetswitched domain services. The HLR is included within the HSS (Home Subscri ...
HP 6200-24G-mGBIC yl Switch
... an optional 4-port 10 GbE module. Designed to be deployed as an aggregator of traffic from the edge to the core of the network, this switch supports a variety of Gigabit mini-GBICs, such as SX, LX, LH, and 1000BASE-T. The foundation for this switch is a purpose-built ProVision ASIC that allows the m ...
... an optional 4-port 10 GbE module. Designed to be deployed as an aggregator of traffic from the edge to the core of the network, this switch supports a variety of Gigabit mini-GBICs, such as SX, LX, LH, and 1000BASE-T. The foundation for this switch is a purpose-built ProVision ASIC that allows the m ...
N150 Wireless ADSL2+ Modem Router DGN1000 User
... Keyword Blocking of HTTP Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Delete a Keyword or Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Specify a Trusted Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Firewall ...
... Keyword Blocking of HTTP Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Delete a Keyword or Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Specify a Trusted Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Firewall ...
Proxy Server - California State University, Los Angeles
... Screened Sub-network Consists of multiple routers sandwiching a non-secure network that is outside or part of the firewall solution. Commonly referred to as a DMZ (demilitarized zone). Proxy is deployed in DMZ and is allowed access to both internal and external networks through routers. Popular arc ...
... Screened Sub-network Consists of multiple routers sandwiching a non-secure network that is outside or part of the firewall solution. Commonly referred to as a DMZ (demilitarized zone). Proxy is deployed in DMZ and is allowed access to both internal and external networks through routers. Popular arc ...
AirLink Raven XE - Sierra Wireless Source
... Due to the nature of wireless communications, transmission and reception of data can never be guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant delays or losses of data are rare when wireless devices such as the Sierra Wireless AirLink Raven XE a ...
... Due to the nature of wireless communications, transmission and reception of data can never be guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant delays or losses of data are rare when wireless devices such as the Sierra Wireless AirLink Raven XE a ...
Slide 1
... station to another, the change of attachment is a handoff • Can categorize wireless networks by the number of wireless hops (one or more), and whether it uses infrastructure (e.g. a ...
... station to another, the change of attachment is a handoff • Can categorize wireless networks by the number of wireless hops (one or more), and whether it uses infrastructure (e.g. a ...
(Radmin) 2.2 - User Manual
... disconnected from the remote computer, however some computers do not boot successfully without a keyboard plugged in. For all operating systems (Win9x/ME/NT/2000/XP/2003): The computer must have TCP/IP installed, the most-used protocol for networking computers. Windows NT 4.0: Service Pack 4 or high ...
... disconnected from the remote computer, however some computers do not boot successfully without a keyboard plugged in. For all operating systems (Win9x/ME/NT/2000/XP/2003): The computer must have TCP/IP installed, the most-used protocol for networking computers. Windows NT 4.0: Service Pack 4 or high ...
Ingate Systems AB
... Why does the Enterprise need an SBC? Eliminate interoperability issues Resolve NAT traversal through the firewall Security ...
... Why does the Enterprise need an SBC? Eliminate interoperability issues Resolve NAT traversal through the firewall Security ...
Week13_2
... implementations typically waits until get some more data to send. Remember TCP regards the data as a byte stream. – This is the reason why the template code took some measures to make sure that always a complete packet is delivered. ...
... implementations typically waits until get some more data to send. Remember TCP regards the data as a byte stream. – This is the reason why the template code took some measures to make sure that always a complete packet is delivered. ...
SIP messages
... IKE Main Mode in that case does not work with pre-shared secrets and that IKE Aggressive Mode is fraught with security problems (man-inthe-middle attacks, off-line dictionary attacks on the PSK, etc.), public key based authentication will be the preferred method. ...
... IKE Main Mode in that case does not work with pre-shared secrets and that IKE Aggressive Mode is fraught with security problems (man-inthe-middle attacks, off-line dictionary attacks on the PSK, etc.), public key based authentication will be the preferred method. ...
Mobile Communications
... Some new issues that might help mobility? • Push technology • real pushing, not a client pull needed, channels etc. ...
... Some new issues that might help mobility? • Push technology • real pushing, not a client pull needed, channels etc. ...
Module 6: Configuring Routing by Using Routing and Remote Access
... A router that is not dedicated to performing routing only, but performs routing as one of multiple processes running on the router computer ...
... A router that is not dedicated to performing routing only, but performs routing as one of multiple processes running on the router computer ...
No Slide Title
... • Router is an intermediate system • The network layer determines the best way to transfer data. It manages device addressing and tracks the location of devices. The router operates at this layer. CBK REVIEW - August 1999 ...
... • Router is an intermediate system • The network layer determines the best way to transfer data. It manages device addressing and tracks the location of devices. The router operates at this layer. CBK REVIEW - August 1999 ...
VLANs - Lansing School District
... VLANs work at Layer 2 and Layer 3 of the OSI VLAN architecture must allow transportation of VLAN information between interconnected switches and routers on the corporate backbone Most common approach for logically grouping users into distinct VLANS are frame filtering, frame tagging, and frame ident ...
... VLANs work at Layer 2 and Layer 3 of the OSI VLAN architecture must allow transportation of VLAN information between interconnected switches and routers on the corporate backbone Most common approach for logically grouping users into distinct VLANS are frame filtering, frame tagging, and frame ident ...
Wireless security
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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.