intrusion detection system in ad-hoc networks
... profiles. Since the profiles updates are usually large it requires extensive use of system resources like CPU time, memory and disk space. They manage to solve these problems by recording system calls from daemon processes. Obviously, this system operates only on Unix- ...
... profiles. Since the profiles updates are usually large it requires extensive use of system resources like CPU time, memory and disk space. They manage to solve these problems by recording system calls from daemon processes. Obviously, this system operates only on Unix- ...
Large vs. small
... directly connected to the Internet backbone? • have higher speed links, large-volume data transfers ...
... directly connected to the Internet backbone? • have higher speed links, large-volume data transfers ...
Figure 2-4
... Frames and Packets • In an internet with hosts separated by N networks, there will be: – 2 hosts – One packet (going all the way between hosts) – One route (between the two hosts) – N frames (one in each network) – N-1 routers (change frames between each pair of networks) – There usually are many s ...
... Frames and Packets • In an internet with hosts separated by N networks, there will be: – 2 hosts – One packet (going all the way between hosts) – One route (between the two hosts) – N frames (one in each network) – N-1 routers (change frames between each pair of networks) – There usually are many s ...
Virtual Private Netorks: An Overview
... Private Wire Service (VPWS), which offer point-to-point ...
... Private Wire Service (VPWS), which offer point-to-point ...
overlay network - Communications
... • Overlay Manager: Server for storing and downloading overlay configurations Next version (parts are done, release in Summer 2004): – “MessageStore”: Enhanced data services, e.g., end-to-end reliability, persistence, streaming, etc. – HyperCast for mobile ad-hoc networks on handheld devices – Servic ...
... • Overlay Manager: Server for storing and downloading overlay configurations Next version (parts are done, release in Summer 2004): – “MessageStore”: Enhanced data services, e.g., end-to-end reliability, persistence, streaming, etc. – HyperCast for mobile ad-hoc networks on handheld devices – Servic ...
Internet Overview: Network Switching
... • Malware: sw designed to infiltrate or damage a computer system w/o the owner’s informed consent [Wikipedia]; based on intention of its creator, rather than any features • In law, malware is defined as a computer contaminant ...
... • Malware: sw designed to infiltrate or damage a computer system w/o the owner’s informed consent [Wikipedia]; based on intention of its creator, rather than any features • In law, malware is defined as a computer contaminant ...
Lecture #2
... sends three packets that will reach router i on path towards destination router i will return packets to sender sender times interval between transmission and reply. ...
... sends three packets that will reach router i on path towards destination router i will return packets to sender sender times interval between transmission and reply. ...
IP MULTICAST ROUTING
... • Source/Destination routing • Each router maintains the up-to-date image of the topology of the entire network • For use within a single routing domain • Supports hierarchical routing, load ...
... • Source/Destination routing • Each router maintains the up-to-date image of the topology of the entire network • For use within a single routing domain • Supports hierarchical routing, load ...
Common WAN Components and Issues
... Split horizon is another potential issue. Split horizon is a technique used in routing to help prevent routing loops. With split horizon, a router will not advertise a route to another network out of the interface that it learned the route on. With a point-to-multipoint WAN connection, a router may ...
... Split horizon is another potential issue. Split horizon is a technique used in routing to help prevent routing loops. With split horizon, a router will not advertise a route to another network out of the interface that it learned the route on. With a point-to-multipoint WAN connection, a router may ...
Base Designs Lab Setup for Validated Reference Design
... Employee SSID: Employee users and all corporate devices that are capable of 802.1X authentication use the employee SSID. An employee user has full access to all the network resources and the internet. This SSID uses 802.1X/EAP for authentication and AES for encryption. Application SSID: Only cor ...
... Employee SSID: Employee users and all corporate devices that are capable of 802.1X authentication use the employee SSID. An employee user has full access to all the network resources and the internet. This SSID uses 802.1X/EAP for authentication and AES for encryption. Application SSID: Only cor ...
network layer
... • Packets are injected into the subnet individually • Routed independently of each other. • Packets are called datagrams (in analogy with telegrams) and the subnet is called a datagram subnet. . • Each datagram contains full destination addrs • Every router has an internal table telling it where to ...
... • Packets are injected into the subnet individually • Routed independently of each other. • Packets are called datagrams (in analogy with telegrams) and the subnet is called a datagram subnet. . • Each datagram contains full destination addrs • Every router has an internal table telling it where to ...
circuit-level gateway
... authorization schemes that must be used in either direction and for each service • Many policies use the simplest scheme mentioned above for outbound connections and a strong authentication scheme for inbound connections ...
... authorization schemes that must be used in either direction and for each service • Many policies use the simplest scheme mentioned above for outbound connections and a strong authentication scheme for inbound connections ...
ch16
... Sites in the system can be physically connected in a variety of ways; they are compared with respect to the following criteria: Basic cost - How expensive is it to link the various sites in the system? Communication cost - How long does it take to send a message from site A to site B? Reliabil ...
... Sites in the system can be physically connected in a variety of ways; they are compared with respect to the following criteria: Basic cost - How expensive is it to link the various sites in the system? Communication cost - How long does it take to send a message from site A to site B? Reliabil ...
CLEAR Ad Notice - Network Advertising Initiative
... Online Behavioral Advertising released in July 2009 by the cross-industry SelfRegulatory Program for Online Behavioral Advertising Working Group. ...
... Online Behavioral Advertising released in July 2009 by the cross-industry SelfRegulatory Program for Online Behavioral Advertising Working Group. ...
PPT 1.0M
... that do not work when integrated together. • Inconsistency between different releases of Internet Drafts, e.g. IPv6 mobility support drafts #13, #16, etc. • Differences between implementations built on different OS kernels. • Not new problems, but really experiencing them are good lessons for deploy ...
... that do not work when integrated together. • Inconsistency between different releases of Internet Drafts, e.g. IPv6 mobility support drafts #13, #16, etc. • Differences between implementations built on different OS kernels. • Not new problems, but really experiencing them are good lessons for deploy ...
Ch05-2 - LINK@KoreaTech
... cheap $20 for NIC first widely used LAN technology simpler, cheaper than token LANs and ATM kept up with speed race: 10 Mbps – 10 Gbps ...
... cheap $20 for NIC first widely used LAN technology simpler, cheaper than token LANs and ATM kept up with speed race: 10 Mbps – 10 Gbps ...
Chapter 7
... t i timestamp of the ith packet ri the time packet i is received by receiver p i the time packet i is played at receiver ri t i network delay for ith packet d i estimate of average network delay after receiving ith packet ...
... t i timestamp of the ith packet ri the time packet i is received by receiver p i the time packet i is played at receiver ri t i network delay for ith packet d i estimate of average network delay after receiving ith packet ...
Layer 3 Multiprotocol Label Switching Vir-
... 2.1 Technology Background of MPLS Comparing to other Wide Area Network (WAN) protocols for data networking, such as ATM and Frame Relay Service, Multi-Protocol Label Switching (MPLS) promises a number of new competences and control features for service providers. MPLS is an Internet Engineering Task ...
... 2.1 Technology Background of MPLS Comparing to other Wide Area Network (WAN) protocols for data networking, such as ATM and Frame Relay Service, Multi-Protocol Label Switching (MPLS) promises a number of new competences and control features for service providers. MPLS is an Internet Engineering Task ...
downloading
... tcpdump used to view network traffic on the wire basic usage: # tcpdump [-e] [-n] -i if0 [expr.] ... where if0 is your interface (e.g.: em0) ...
... tcpdump used to view network traffic on the wire basic usage: # tcpdump [-e] [-n] -i if0 [expr.] ... where if0 is your interface (e.g.: em0) ...
bgp header
... communicate with Y. How can Z configure the router that connects to Y so that it will not accept any routes coming from X? Possible non scalable solution: Z could put a distribute list on its routers that blocks all of the networks assigned to X. Problems with this approach? How does Z know which ...
... communicate with Y. How can Z configure the router that connects to Y so that it will not accept any routes coming from X? Possible non scalable solution: Z could put a distribute list on its routers that blocks all of the networks assigned to X. Problems with this approach? How does Z know which ...
15-744: Computer Networking
... • Interleave packets from different sources • Efficient: resources used on demand • Statistical multiplexing ...
... • Interleave packets from different sources • Efficient: resources used on demand • Statistical multiplexing ...
Lecture 2: WPAN
... TCP/IP based applications, for instance information transfer using the Wireless Application Protocol (WAP), can be extended to Bluetooth devices by using the Pointto-Point Protocol (PPP) on top of RFCOMM. ...
... TCP/IP based applications, for instance information transfer using the Wireless Application Protocol (WAP), can be extended to Bluetooth devices by using the Pointto-Point Protocol (PPP) on top of RFCOMM. ...
