lecture07
... • The source address in each request packet is spoofed so that replies are sent to a victim machine • Result: the victim’s machine/network is flooded by ICMP echo replies ...
... • The source address in each request packet is spoofed so that replies are sent to a victim machine • Result: the victim’s machine/network is flooded by ICMP echo replies ...
module02-reviewV2
... • The complexity of the communication task is reduced by using multiple protocol layers: • Each protocol is implemented independently • Each protocol is responsible for a specific subtask • Protocols are grouped in a hierarchy • A structured set of protocols is called a communications architecture o ...
... • The complexity of the communication task is reduced by using multiple protocol layers: • Each protocol is implemented independently • Each protocol is responsible for a specific subtask • Protocols are grouped in a hierarchy • A structured set of protocols is called a communications architecture o ...
Part 10, CIPHER TECHNIQUES
... • Only ESP, payload are considered; not IP header • Note authentication data inserted after encipherment, so no deciphering need be done Slide #10-64 ...
... • Only ESP, payload are considered; not IP header • Note authentication data inserted after encipherment, so no deciphering need be done Slide #10-64 ...
Vorgud_8
... Support synchronization between sender & receiver Allow receiver to apply flow control to sender Support multiple application processes on each host Other services? (congestion control, quality-of-service, …) ...
... Support synchronization between sender & receiver Allow receiver to apply flow control to sender Support multiple application processes on each host Other services? (congestion control, quality-of-service, …) ...
Traceroute - WordPress.com
... every router in the path between the hosts. If the data fails at some hop along the way, the address of the last router that responded to the trace can provide an indication of where the problem or security restrictions are found. Provides round-trip time for each hop along the path and indicate ...
... every router in the path between the hosts. If the data fails at some hop along the way, the address of the last router that responded to the trace can provide an indication of where the problem or security restrictions are found. Provides round-trip time for each hop along the path and indicate ...
9) Ch7 Transport Layer
... a) TCP offers full duplex services, in which data can flow in both direction at the same time. b) Each TCP then has a sending and receiving buffer and segments move in both directions. (mostly for flow and congestion control) c) When site A wants to send and receive data from another site B: • The t ...
... a) TCP offers full duplex services, in which data can flow in both direction at the same time. b) Each TCP then has a sending and receiving buffer and segments move in both directions. (mostly for flow and congestion control) c) When site A wants to send and receive data from another site B: • The t ...
Chapter 22 Bootstrap and Auto configuration (DHCP)
... For connection with the DHCP server, client will broadcast DHCPDISCOVER message and moves to the SELECT state. ...
... For connection with the DHCP server, client will broadcast DHCPDISCOVER message and moves to the SELECT state. ...
here - Redbrick DCU
... • The Transport layer handles error recognition and recovery. It also repackages long messages when necessary into small packets for transmission and, at the receiving end, rebuilds packets into the original message. The receiving Transport layer also sends receipt acknowledgments. • The Network lay ...
... • The Transport layer handles error recognition and recovery. It also repackages long messages when necessary into small packets for transmission and, at the receiving end, rebuilds packets into the original message. The receiving Transport layer also sends receipt acknowledgments. • The Network lay ...
Games and the Impossibility of Realizable Ideal Functionality
... Design flaw allowing one machine to disrupt a service DoS flood: Command bot-net to generate flood of requests ...
... Design flaw allowing one machine to disrupt a service DoS flood: Command bot-net to generate flood of requests ...
SDN Tools - CSE Labs User Home Pages
... • Port counters – e.g. packets/bytes transmitted/received, drops ...
... • Port counters – e.g. packets/bytes transmitted/received, drops ...
POX-OVS-Mininet - CSE Labs User Home Pages
... • Port counters – e.g. packets/bytes transmitted/received, drops ...
... • Port counters – e.g. packets/bytes transmitted/received, drops ...
Network Programming
... Message: The Message element holds diverse data elements that are unique to each ICMP message type. The Message data field is used to hold information that is sent to and from the remote host. The first two fields in the Message element are defined as an Identifier and Sequence number. These fields ...
... Message: The Message element holds diverse data elements that are unique to each ICMP message type. The Message data field is used to hold information that is sent to and from the remote host. The first two fields in the Message element are defined as an Identifier and Sequence number. These fields ...
Acknowledgement Packet Format - IEEE Standards working groups
... Where DCID and SCID are the destination and source cluster identifiers, respectively. Placing these fields as the first two bytes of the MSDU allows an implementation (of a cluster tree-specific “upper” MAC) to check for validity quickly – it is just one more step in the address rejection process fo ...
... Where DCID and SCID are the destination and source cluster identifiers, respectively. Placing these fields as the first two bytes of the MSDU allows an implementation (of a cluster tree-specific “upper” MAC) to check for validity quickly – it is just one more step in the address rejection process fo ...
TamVu_TCP_lec_DR13 - Winlab
... Solution: TCP maintains a local buffer Chop the stream into packets and transmit (sender) Coalesce data from packets to form a stream (receiver) ...
... Solution: TCP maintains a local buffer Chop the stream into packets and transmit (sender) Coalesce data from packets to form a stream (receiver) ...
Internetworking
... 6. TTL, time to live: discard looping packets; 64 is the current default 7. Protocol: higher-level protocol (TCP = 6, UDP =17, …) 8. Checksum: calculated for IP header considered as a sequence of 16-bit words 9. SourceAddr, DestinationAddr: IP defines its own global address space, independent of phy ...
... 6. TTL, time to live: discard looping packets; 64 is the current default 7. Protocol: higher-level protocol (TCP = 6, UDP =17, …) 8. Checksum: calculated for IP header considered as a sequence of 16-bit words 9. SourceAddr, DestinationAddr: IP defines its own global address space, independent of phy ...
Computer Networks and the Internet
... multiplexing gains to be had, and by using circuits, each connection will get a constant amount of bandwidth that matches its CBR rate. On the other hand, circuit-switching has more overhead in terms of signaling needed to set up the call, so there is an argument that packet-switching is preferable ...
... multiplexing gains to be had, and by using circuits, each connection will get a constant amount of bandwidth that matches its CBR rate. On the other hand, circuit-switching has more overhead in terms of signaling needed to set up the call, so there is an argument that packet-switching is preferable ...
download
... – Standardize message character set to 7 bit ASCII – Add log info to start of message • Shows path taken Bina Nusantara ...
... – Standardize message character set to 7 bit ASCII – Add log info to start of message • Shows path taken Bina Nusantara ...
Chapter 7
... systems. RTP packets are encapsulated in UDP segments Interoperability: If two Internet phone applications run RTP, then they may be able to work together ...
... systems. RTP packets are encapsulated in UDP segments Interoperability: If two Internet phone applications run RTP, then they may be able to work together ...
Document
... • Combines collection of physical networks into single, virtual network • Transport protocols use this connectionless service to provide connectionless data delivery (UDP) and connection-oriented data delivery (TCP) – But this is all done on top of IP, which is connectionless, so we’ll need to imple ...
... • Combines collection of physical networks into single, virtual network • Transport protocols use this connectionless service to provide connectionless data delivery (UDP) and connection-oriented data delivery (TCP) – But this is all done on top of IP, which is connectionless, so we’ll need to imple ...
Figure 2.1 Communication requires a message, a transmitter, a
... Copyright © 2003, Addison Wesley ...
... Copyright © 2003, Addison Wesley ...
DatagramPacket packet
... counter, which is updated when it is routed along to the next point in the network. When the timer expires, it will be discarded, and the recipient will not be notified. ...
... counter, which is updated when it is routed along to the next point in the network. When the timer expires, it will be discarded, and the recipient will not be notified. ...
The Transport Layer - CIS @ Temple University
... provide a transport service that is more reliable than the underlying network service. 2. While the network layer deals with only a few transport entities, the transport layer allows several concurrent applications to use the transport service. 3. It provides a common interface to application writer ...
... provide a transport service that is more reliable than the underlying network service. 2. While the network layer deals with only a few transport entities, the transport layer allows several concurrent applications to use the transport service. 3. It provides a common interface to application writer ...