VoIP (1)
... Internet Telephony revisited, often facilitated by software or network servers from new types of voice service providers – Microsoft, Net2Phone, Dialpad, AOL, Yahoo! – Mass market alternative to telcos, requiring limited network infrastructure, capital costs, operating expenses ...
... Internet Telephony revisited, often facilitated by software or network servers from new types of voice service providers – Microsoft, Net2Phone, Dialpad, AOL, Yahoo! – Mass market alternative to telcos, requiring limited network infrastructure, capital costs, operating expenses ...
Hell of a Handshake: Abusing TCP for Reflective
... can in general be abused for amplification attacks [6]. In that work, we enumerated the SYN/ACK responses upon sending a single SYN packet to HTTP and Telnet hosts and revealed hundreds of thousands of systems (mostly business and consumer routing devices) that repeatedly sent up to 20 SYN/ACK packe ...
... can in general be abused for amplification attacks [6]. In that work, we enumerated the SYN/ACK responses upon sending a single SYN packet to HTTP and Telnet hosts and revealed hundreds of thousands of systems (mostly business and consumer routing devices) that repeatedly sent up to 20 SYN/ACK packe ...
SG 17 is
... Importance of telecommunication/ICT security standardization (4/4) For on-going credibility, we need performance measures that provide some indication of the effectiveness of our standards. In the past there has been too much focus on quantity (i.e. how many standards are produced) than on the qu ...
... Importance of telecommunication/ICT security standardization (4/4) For on-going credibility, we need performance measures that provide some indication of the effectiveness of our standards. In the past there has been too much focus on quantity (i.e. how many standards are produced) than on the qu ...
Overlay Network Monitoring and its Applications
... • A tomography-based overlay network monitoring system – Given n end hosts, characterize O(n2) paths with a basis set of O(nlogn) paths – Selectively monitor O(nlogn) paths to compute the loss rates of the basis set, then infer the loss rates of all other paths ...
... • A tomography-based overlay network monitoring system – Given n end hosts, characterize O(n2) paths with a basis set of O(nlogn) paths – Selectively monitor O(nlogn) paths to compute the loss rates of the basis set, then infer the loss rates of all other paths ...
Memory Requirements
... – Link-state routing protocols typically require more memory, more CPU processing, and at times more bandwidth than distance vector routing protocols. – The memory requirements are due to the use of link-state databases and the creation of the SPF tree. ...
... – Link-state routing protocols typically require more memory, more CPU processing, and at times more bandwidth than distance vector routing protocols. – The memory requirements are due to the use of link-state databases and the creation of the SPF tree. ...
Two-Step Delay Based Internet Gateway Selection Felix Hoffmann, Daniel Medina Adam Wolisz
... An aircraft can be seen as a mobile network. A number of hosts, i.e. passengers’ laptops or phones, or other onboard devices, are connected to a mobile router onboard the aircraft. Since our goal is to provide IP based Internet services to the passengers, it is necessary that globally valid IP prefi ...
... An aircraft can be seen as a mobile network. A number of hosts, i.e. passengers’ laptops or phones, or other onboard devices, are connected to a mobile router onboard the aircraft. Since our goal is to provide IP based Internet services to the passengers, it is necessary that globally valid IP prefi ...
Pass Microsoft 98-367 Exam
... Mark works as a Security Officer for TechMart Inc. The company has a Windows-based network. He has bees assigned a project for ensuring the safety of the customer's money and information, not to mention the company's reputation. The company has gone through a security audit to ensure that it is in c ...
... Mark works as a Security Officer for TechMart Inc. The company has a Windows-based network. He has bees assigned a project for ensuring the safety of the customer's money and information, not to mention the company's reputation. The company has gone through a security audit to ensure that it is in c ...
Chapter 1 Fundamentals
... Low overhead for bursty long-lived or short-lived connectivity End-to-end instead of hop-by-hop Don’t put it in a lower layer if it cannot be completely done there! Hop-by-hop only for performance optimization ...
... Low overhead for bursty long-lived or short-lived connectivity End-to-end instead of hop-by-hop Don’t put it in a lower layer if it cannot be completely done there! Hop-by-hop only for performance optimization ...
Chapter 1 Fundamentals
... Low overhead for bursty long-lived or short-lived connectivity End-to-end instead of hop-by-hop Don’t put it in a lower layer if it cannot be completely done there! Hop-by-hop only for performance optimization ...
... Low overhead for bursty long-lived or short-lived connectivity End-to-end instead of hop-by-hop Don’t put it in a lower layer if it cannot be completely done there! Hop-by-hop only for performance optimization ...
Network Layer Functions Network Service Model
... • Flags — A 3-bit field of which the low-order 2 bits control fragmentation. One bit specifies whether the packet can be fragmented; the second bit specifies whether the packet is the last fragment in a series of fragmented ...
... • Flags — A 3-bit field of which the low-order 2 bits control fragmentation. One bit specifies whether the packet can be fragmented; the second bit specifies whether the packet is the last fragment in a series of fragmented ...
1 - Salisbury University
... excessive congestion possible: packet delay and loss protocols needed for reliable data transfer, congestion control Q: How to provide circuit-like behavior? bandwidth guarantees needed for audio/video apps still an unsolved problem (chapter 7) ...
... excessive congestion possible: packet delay and loss protocols needed for reliable data transfer, congestion control Q: How to provide circuit-like behavior? bandwidth guarantees needed for audio/video apps still an unsolved problem (chapter 7) ...
IP Internet Protocol Based on notes from D. Hollinger Netprog 2002 TCP/IP
... inspects the destination address. If the address does not match the hardware address of the interface or the broadcast address, the frame is discarded. Some interfaces can also be programmed to recognize multicast addresses. Netprog 2002 TCP/IP ...
... inspects the destination address. If the address does not match the hardware address of the interface or the broadcast address, the frame is discarded. Some interfaces can also be programmed to recognize multicast addresses. Netprog 2002 TCP/IP ...
Secure Telephony Enabled Middle
... SIP INVITE Floods detected by Protocol Parser. Malicious RTP Streams detected by Flow Monitor. M/S Gateway Voice Port saturation. ...
... SIP INVITE Floods detected by Protocol Parser. Malicious RTP Streams detected by Flow Monitor. M/S Gateway Voice Port saturation. ...
DFL-M510 A3_Manual V1.02 - D-Link
... The DFL-M5 10 is a transparent network device. To ensure there is no disruption to your network, it can be installed in In-Line mode with a hardware bypass function enabled. The hardware bypass ensures that if the DFL-M510 crashes, or experiences a power out or some other problem; your network is st ...
... The DFL-M5 10 is a transparent network device. To ensure there is no disruption to your network, it can be installed in In-Line mode with a hardware bypass function enabled. The hardware bypass ensures that if the DFL-M510 crashes, or experiences a power out or some other problem; your network is st ...
Application Layer Functionality and Protocols
... Developed in the early 1970’s – among the oldest of the application layer protocols and services in the TCP/IP protocol suite. Allows users to emulate text-based terminal devices over the network using software. A connection is known as a ‘virtual terminal (vty)’ session. Can be run from the ...
... Developed in the early 1970’s – among the oldest of the application layer protocols and services in the TCP/IP protocol suite. Allows users to emulate text-based terminal devices over the network using software. A connection is known as a ‘virtual terminal (vty)’ session. Can be run from the ...
PPT
... is there a checksum? where is it? how is it computed? – what is the format of an address? – byte ordering ...
... is there a checksum? where is it? how is it computed? – what is the format of an address? – byte ordering ...
Slide 1
... is there a checksum? where is it? how is it computed? – what is the format of an address? – byte ordering Page 4 ...
... is there a checksum? where is it? how is it computed? – what is the format of an address? – byte ordering Page 4 ...
Types of Attacks - Digital Locker and Personal Web Space
... • An example of a DoS attack targeting a specific protocol or service – Illustrates basic principles of most DoS attacks • Exploit a weakness inherent to the function of the TCP/IP protocol – Uses TCP three-way handshake to flood a system with faked connection requests ...
... • An example of a DoS attack targeting a specific protocol or service – Illustrates basic principles of most DoS attacks • Exploit a weakness inherent to the function of the TCP/IP protocol – Uses TCP three-way handshake to flood a system with faked connection requests ...
CompTIA Network+ N10-005 Authorized Exam Cram
... All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized. Pearson cannot attest to the accuracy of this information. Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark. ...
... All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized. Pearson cannot attest to the accuracy of this information. Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark. ...
Chapter 13 PowerPoint
... The original implementation of PPTP used MS-CHAP as the authentication protocol. The latest update to PPTP has added support for MSCHAPv2 and EAP authentication. With PPTP deployed, it is possible to determine the password by using a dictionary attack if weak passwords have been used. If weak passwo ...
... The original implementation of PPTP used MS-CHAP as the authentication protocol. The latest update to PPTP has added support for MSCHAPv2 and EAP authentication. With PPTP deployed, it is possible to determine the password by using a dictionary attack if weak passwords have been used. If weak passwo ...
EC2004_ch12
... numbers that are stored as a template and used to authenticate identity Iris scanning: Measurement of the unique spots in the iris (colored part of the eye), converted to a set of numbers that are stored as a template and used to authenticate identity © Prentice Hall 2004 ...
... numbers that are stored as a template and used to authenticate identity Iris scanning: Measurement of the unique spots in the iris (colored part of the eye), converted to a set of numbers that are stored as a template and used to authenticate identity © Prentice Hall 2004 ...
The Network Layer
... determine this delay is to send over the line a special ECHO packet that the other side is required to send back immediately. By measuring the round-trip time and dividing it by two, the sending router can get a reasonable estimate of the delay. An interesting issue is whether to take the load into ...
... determine this delay is to send over the line a special ECHO packet that the other side is required to send back immediately. By measuring the round-trip time and dividing it by two, the sending router can get a reasonable estimate of the delay. An interesting issue is whether to take the load into ...
DCN-Lecture-4 - WordPress.com
... access to partners, vendors and suppliers or an authorized set of customers - normally to a subset of the information accessible from an organization's intranet. An extranet is similar to a DMZ in that it provides access to needed services for authorised parties, without granting access to an organi ...
... access to partners, vendors and suppliers or an authorized set of customers - normally to a subset of the information accessible from an organization's intranet. An extranet is similar to a DMZ in that it provides access to needed services for authorised parties, without granting access to an organi ...
ComSoc-carrier-WiFi-130311
... Source: iSuppli, Q2, 2011 Connectivity Forecast. Other Wi-Fi-enabled clients consists of the following: printers – 41M in 2011, 69M in 2015; digital cameras – 7M in 2011; 24M in 2015; gaming consoles – 40M in 2011, 56M in 2015; handheld gaming – 36M in 2011, 35M in 2015; eReaders – 3M in 2011; 15M i ...
... Source: iSuppli, Q2, 2011 Connectivity Forecast. Other Wi-Fi-enabled clients consists of the following: printers – 41M in 2011, 69M in 2015; digital cameras – 7M in 2011; 24M in 2015; gaming consoles – 40M in 2011, 56M in 2015; handheld gaming – 36M in 2011, 35M in 2015; eReaders – 3M in 2011; 15M i ...
NetVM: High Performance and Flexible Networking Using
... such as firewalls, proxies, and routers to be embedded within virtual machines, complementing the control plane capabilities of Software Defined Networking. NetVM makes it easy to dynamically scale, deploy, and reprogram network functions. This provides far greater flexibility than existing purpose- ...
... such as firewalls, proxies, and routers to be embedded within virtual machines, complementing the control plane capabilities of Software Defined Networking. NetVM makes it easy to dynamically scale, deploy, and reprogram network functions. This provides far greater flexibility than existing purpose- ...