Introduction
... Local Area Networks(10-100 Mbps) Metropolitan Area Networks Wide Area Networks Wireless Networks Home Networks ...
... Local Area Networks(10-100 Mbps) Metropolitan Area Networks Wide Area Networks Wireless Networks Home Networks ...
How to bypass the firewall
... characteristics stated in book of [Stallings]: - All the traffics, which try to go in or out the network, must pass through the firewall. - Only the authorized traffic that defined by the local security policy will be permitted to pass the firewall. - The firewall itself is immune to be penetrated, ...
... characteristics stated in book of [Stallings]: - All the traffics, which try to go in or out the network, must pass through the firewall. - Only the authorized traffic that defined by the local security policy will be permitted to pass the firewall. - The firewall itself is immune to be penetrated, ...
Chapter 2 Networking Overview
... – Content of state table (source & destination IP address and port# , timeout) Basis of packet forwarding decision – State table – rule set ACK packets may be dropped if there was no associated SYN packet in state table May remember outgoing UDP packets to restrict incoming UDP packets to replies Mo ...
... – Content of state table (source & destination IP address and port# , timeout) Basis of packet forwarding decision – State table – rule set ACK packets may be dropped if there was no associated SYN packet in state table May remember outgoing UDP packets to restrict incoming UDP packets to replies Mo ...
投影片 1
... destination vehicle as long as one exists. • Currently, our protocol is designed for IVC networks formed by a few vehicles moving on the same lane. ...
... destination vehicle as long as one exists. • Currently, our protocol is designed for IVC networks formed by a few vehicles moving on the same lane. ...
Document - Oman College of Management & Technology
... • IP routing works as follow: – Each data packet is labeled with IP address of the destination host 137.189.90.184 1500 bytes Data here ...
... • IP routing works as follow: – Each data packet is labeled with IP address of the destination host 137.189.90.184 1500 bytes Data here ...
PPTX
... – What about the other problems listed? – War story: Byte swapping problem while routing @ MIT ...
... – What about the other problems listed? – War story: Byte swapping problem while routing @ MIT ...
Firewalls
... which then sends the internal users requests out through its client ( keeps track of which users requested what, do redirect returned data back to appropriate user) ...
... which then sends the internal users requests out through its client ( keeps track of which users requested what, do redirect returned data back to appropriate user) ...
Firewalls
... which then sends the internal users requests out through its client ( keeps track of which users requested what, do redirect returned data back to appropriate user) ...
... which then sends the internal users requests out through its client ( keeps track of which users requested what, do redirect returned data back to appropriate user) ...
ABC`s of the Internet Cancer Registry
... It would be great to have all cancer data providers wired to the cancer registry via a private Wide Area Network (WAN). However, this is an impractical solution due to its enormity and the costs involved of setting up a private network spanning the entire state. Virtual Private Networks (VPN) are an ...
... It would be great to have all cancer data providers wired to the cancer registry via a private Wide Area Network (WAN). However, this is an impractical solution due to its enormity and the costs involved of setting up a private network spanning the entire state. Virtual Private Networks (VPN) are an ...
ESX 2008 VoIP
... The above figure shows the communication path through a Non-facilitated Voice over IP provider. In this example the alarm panel has a POTS connection from the MTA. The MTA then converts the call into IP packets and sends the information through the DSL modem to the Internet using and then onto the V ...
... The above figure shows the communication path through a Non-facilitated Voice over IP provider. In this example the alarm panel has a POTS connection from the MTA. The MTA then converts the call into IP packets and sends the information through the DSL modem to the Internet using and then onto the V ...
Introduction to Internet
... TCP/IP • IP Internet Protocal – router software • TCP Transmission Control Protocol – software manages creating packets on both sending and receiving routers ...
... TCP/IP • IP Internet Protocal – router software • TCP Transmission Control Protocol – software manages creating packets on both sending and receiving routers ...
Section 5A
... Topology: Physical or logical layout of cables and devices that connect the network nodes Media: wires and cables that carry data from source to destination Bandwidth: amount of data media can ...
... Topology: Physical or logical layout of cables and devices that connect the network nodes Media: wires and cables that carry data from source to destination Bandwidth: amount of data media can ...
03-PacketSwitching-TRybczynski-13Jan2016
... • Carriers developed connection-oriented & connectionless ‘Layer 2’ packet services to meet enterprise needs • MPLS was also developed as carrier backbone technologies for enhanced traffic management capabilities ...
... • Carriers developed connection-oriented & connectionless ‘Layer 2’ packet services to meet enterprise needs • MPLS was also developed as carrier backbone technologies for enhanced traffic management capabilities ...
Q and A slides
... that “IP is designed to run over any type of network”? And, how is IP “best-effort”? A: It means that IP was designed to operate over networks that provide few guarantees. It does not require absolutely perfect, fast, robust layer 2 hardware/protocols. It just requires that the lower layer do its be ...
... that “IP is designed to run over any type of network”? And, how is IP “best-effort”? A: It means that IP was designed to operate over networks that provide few guarantees. It does not require absolutely perfect, fast, robust layer 2 hardware/protocols. It just requires that the lower layer do its be ...
The Power of Modern Information Systems
... finally to the global Internet. On the battlefield a communications network will sustain damage, so the DOD designed TCP/IP to be robust and automatically recover from any node or phone line failure. This design allows the construction of very large networks with less central management. However, be ...
... finally to the global Internet. On the battlefield a communications network will sustain damage, so the DOD designed TCP/IP to be robust and automatically recover from any node or phone line failure. This design allows the construction of very large networks with less central management. However, be ...
Slide 1
... Apply the algorithms behind some current network security protocols. Understand firewalls and their applications.. Demonstrate detailed knowledge of TCP/IP. ...
... Apply the algorithms behind some current network security protocols. Understand firewalls and their applications.. Demonstrate detailed knowledge of TCP/IP. ...
William Stallings Data and Computer Communications
... • Two levels of addressing required • Each computer needs unique network address • Each application on a (multi-tasking) computer needs a unique address within the computer The service access point or SAP ...
... • Two levels of addressing required • Each computer needs unique network address • Each application on a (multi-tasking) computer needs a unique address within the computer The service access point or SAP ...
QoS: IntServ and DiffServ
... • Rate limiting of EF packets at edges only, using token bucket to shape transmission • Simple forwarding: classify packet in one of two queues, use priority – EF packets are forwarded with minimal delay and loss (up to the capacity of the router) ...
... • Rate limiting of EF packets at edges only, using token bucket to shape transmission • Simple forwarding: classify packet in one of two queues, use priority – EF packets are forwarded with minimal delay and loss (up to the capacity of the router) ...
15-441 Computer Networking Lecture 2 - Protocol Stacks
... • Implementing a functionality at a lower level should have minimum performance impact on the applications that do not use the functionality ...
... • Implementing a functionality at a lower level should have minimum performance impact on the applications that do not use the functionality ...
Transmission Methods
... Protocols were engineered to the specifications of a single vendor – AT&T or IBM Then came minicomputers and PCs, relaxed regulations, new kinds of traffic, and many and varied vendors There was a need for interconnection, but protocols remained vendor-specific Standards-setting bodies could not kee ...
... Protocols were engineered to the specifications of a single vendor – AT&T or IBM Then came minicomputers and PCs, relaxed regulations, new kinds of traffic, and many and varied vendors There was a need for interconnection, but protocols remained vendor-specific Standards-setting bodies could not kee ...