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A Look Back at “Security Problems in the TCP/IP Protocol Suite”
A Look Back at “Security Problems in the TCP/IP Protocol Suite”

... dangerous, but not for the reasons that I gave here. It did list the open ports on the machine, as well as all current connections; both items are very valuable to would-be attackers. Indeed, discovering the former is a major piece of functionality of many attack tools. Fortunately, even in 1989 net ...
A Survey of Secure Wireless Ad Hoc Routing
A Survey of Secure Wireless Ad Hoc Routing

... 4. When the first ROUTE REQUEST from a route discovery reaches the target, the target signs a ROUTE REPLY and sends it to the node from which it received the REQUEST. the target D returns a signed ROUTE REPLY to the previous hop C ...
S-72.423 Telecommunication Systems
S-72.423 Telecommunication Systems

... is a system transmitting the messages (even SMS) … In this course we focus on analyzing that the networks can be divide to ... ...
Evaluating the impact of RTS-CTS in OLPC`s XOs` Mesh Networks
Evaluating the impact of RTS-CTS in OLPC`s XOs` Mesh Networks

... ran these tests with iperf generating TCP and UDP traffic and also with the nodes downloading a file through SCP. However, throughput measurements are more representative when we evaluate UDP traffic instead of TCP. TCP has a lot of inherent features like slow start and flow control that inhibits ne ...
Anonymous Proxy Detection and Control
Anonymous Proxy Detection and Control

... An anonymous proxy server is intended to conceal a user’s identity. One of the more common approaches is the open proxy. An open proxy is a proxy server that can be accessed by any Internet user. Anonymous open proxies allow any user of the Internet to conceal his or her IP address, identity and loc ...
business and information technology
business and information technology

... 5) Session user must negotiate to establish connection with Layer process on another machine. Once the connection is established, the session layer can manage the dialogue in an orderly manner. 6) Presentation Translates message to and from the format used in the network to a format used at the appl ...
Multimedia Applications
Multimedia Applications

... – Caller notifies a callee that it wants to start a call; allows participants to agree upon codecs and end calls – Caller determines the IP address of the callee – Changing codecs during a call; inviting new participants to a call; call ...
Document
Document

... Borrowing 1 bit gives a subnet mask of 255.255.128.0 Borrowing 2 bits gives a subnet mask of 255.255.192.0 Borrowing 3 bits gives a subnet mask of 255.255.224.0 Borrowing 4 bits gives a subnet mask of 255.255.240.0 ...
Ethernet - Mt. Hood Community College
Ethernet - Mt. Hood Community College

... PC sends packet to server Packet header has PC IP address and source and server IP address as destination. ...
OSI Model: Physical Layer Data Link Network
OSI Model: Physical Layer Data Link Network

... Borrowing 1 bit gives a subnet mask of 255.255.128.0 Borrowing 2 bits gives a subnet mask of 255.255.192.0 Borrowing 3 bits gives a subnet mask of 255.255.224.0 Borrowing 4 bits gives a subnet mask of 255.255.240.0 ...
Network Routing
Network Routing

... + provide protection against broadcast storms - require IP address configuration (not plug and play) - require higher packet processing  bridges do well in small (few hundred hosts) while ...
Multi Robot Communication - Computer Science
Multi Robot Communication - Computer Science

... high-speed domain. There are various disadvantages of using centralized architecture. Few of them include:  Load on the server will be increased when the number of client robots.  If the server crashes, there is no way that the client can communicate with each other.  If the load on server increa ...
paper - acsac
paper - acsac

... elevated packets per second rate of traffic destined to the consumer IP range. Once an attack is detected, it can be mitigated by sending the victim’s traffic through scrubbers that would filter out the malicious traffic or even by blocking device traffic. Our experimental configuration only looks f ...
Liberty-i Wireless Glossary
Liberty-i Wireless Glossary

... June 2004). Also known as WPA2, it introduces a range of new security features that are designed to overcome the shortcomings of WEP (Wired Equivalent Privacy), which had several well-documented security deficiencies. Wi-Fi Protected Access (WPA) had previously been introduced by the Wi-Fi Alliance ...
017-015 BEAM VPN vs SSL Brochure no bleed.indd
017-015 BEAM VPN vs SSL Brochure no bleed.indd

... • Dissolve immediately upon transfer completion thereby avoiding the open VPN tunnel risk ...
Quality of Service Networking
Quality of Service Networking

... from the need to tighten a bolt: You can tighten a bolt with pliers or with a wrench. Both are equally effective, but these are different tools. This is the same with QoS tools. You will find that results can be accomplished using different QoS tools. Which one to use depends on the traffic. You wou ...
Converged Networks Case Studies
Converged Networks Case Studies

... Physical convergence occurs when payloads travel over the same physical network equipment regardless of their service requirements. Both multimedia and Web traffic can use the facilities of an edge network, even though the former has more stringent bandwidth, delay, and jitter requirements than the ...
Lecture 3: Data Link Layer Security
Lecture 3: Data Link Layer Security

... – Result in all the traffic passing through the attacker’s computer ...
Network+ Guide to Networks 5th Edition
Network+ Guide to Networks 5th Edition

... segments received into smaller packets ensures that packets are not larger than the network’s maximum transmission unit size • This is usually avoided by adjusting the Maximum Segment Size in the Transport layer, because it makes data transfer inefficient • Router : device that connects network seg ...
A Survey on Network Attacks
A Survey on Network Attacks

... An Intrusion Detection System (or IDS) generally detects unwanted manipulations to computer systems, mainly through the internet. There are many different types of IDS; some of them are described in next section. The manipulations may take the form of attacks by skilled malicious hackers, or script ...
Computer Network - GPW Morni, Panchkula
Computer Network - GPW Morni, Panchkula

... single point of failure. However, this type of system would not be able to protect data in some cases, such as in accidental deletions. 26) What does 10Base-T mean? The 10 refers to the data transfer rate, in this case is 10Mbps. The word Base refers to base band, as oppose to broad band. T means tw ...
Study of the Relationship between Peer to Peer Systems and IP
Study of the Relationship between Peer to Peer Systems and IP

... PIM-SSM: There is a multicast tree originating form each content server, there are N multicast trees if the number of peers in N A peer that wants to join this group must 1) send an IGMP join message to all multicast trees with the sender’s address 2) get all other peers to send it an IGMP join mess ...
Integrated Mobility and Resource Management Mechanism for FMC
Integrated Mobility and Resource Management Mechanism for FMC

... To increase revenues and win more customers, network operators have to introduce more and more interesting and attractive services and offer them not only in fixed access networks but also in the mobile network environment while subscribers are on the move. Multi-radio operation becomes a norm today ...
IOSR Journal of Computer Engineering (IOSR-JCE)
IOSR Journal of Computer Engineering (IOSR-JCE)

... Navigation Satellite systems for example a Global Positioning System (GPS) receiver. By attacking the GNSSbased positioning, it can counterfeit navigation messages and misinform the receiver into manipulating a fake location. For analyzing the vulnerability, firstly to consider replay attacks that c ...
It`s All About Networking
It`s All About Networking

... Has a MAC Address for every Network Interface Card Runs Windows Server, Linux/Unix, or MacOS Server Can be either Wired (Ethernet) using Copper or Fiber Can provide servicess to clients via Application layer protocols such as Web, FTP, SSH, Telnet, DNS, etc. ...
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Deep packet inspection

Deep Packet Inspection (DPI, also called complete packet inspection and Information eXtraction or IX) is a form of computer network packet filtering that examines the data part (and possibly also the header) of a packet as it passes an inspection point, searching for protocol non-compliance, viruses, spam, intrusions, or defined criteria to decide whether the packet may pass or if it needs to be routed to a different destination, or, for the purpose of collecting statistical information. There are multiple headers for IP packets; network equipment only needs to use the first of these (the IP header) for normal operation, but use of the second header (TCP, UDP etc.) is normally considered to be shallow packet inspection (usually called Stateful Packet Inspection) despite this definition.There are multiple ways to acquire packets for deep packet inspection. Using port mirroring (sometimes called Span Port) is a very common way, as well as an optical splitter.Deep Packet Inspection (and filtering) enables advanced network management, user service, and security functions as well as internet data mining, eavesdropping, and internet censorship. Although DPI technology has been used for Internet management for many years, some advocates of net neutrality fear that the technology may be used anticompetitively or to reduce the openness of the Internet.DPI is used in a wide range of applications, at the so-called ""enterprise"" level (corporations and larger institutions), in telecommunications service providers, and in governments.
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