lecture11
... NAT violates the most fundamental rule of protocol layering: layer k may not make any assumptions about what layer k+1 has put into the payload field NAT only support UDP/TCP traffic NAT has problem supporting apps that include local IPs in payload, such as FTP and H.323 Each NAT box can support at ...
... NAT violates the most fundamental rule of protocol layering: layer k may not make any assumptions about what layer k+1 has put into the payload field NAT only support UDP/TCP traffic NAT has problem supporting apps that include local IPs in payload, such as FTP and H.323 Each NAT box can support at ...
EEE449 Computer Networks
... The address is coded to allow a variable allocation of bits to specify network and host This encoding provides flexibility in assigning addresses to hosts and allows a mix of network sizes on an internet. The three principal network classes are best suited to the following conditions: • Class A: Few ...
... The address is coded to allow a variable allocation of bits to specify network and host This encoding provides flexibility in assigning addresses to hosts and allows a mix of network sizes on an internet. The three principal network classes are best suited to the following conditions: • Class A: Few ...
lecture13 - Academic Server| Cleveland State University
... A creates IP datagram with source A, destination B A uses ARP to get R’s MAC address for 111.111.111.110 A creates link-layer frame with R's MAC address as dest, frame contains A-to-B IP datagram This is a really important A’s NIC sends frame ...
... A creates IP datagram with source A, destination B A uses ARP to get R’s MAC address for 111.111.111.110 A creates link-layer frame with R's MAC address as dest, frame contains A-to-B IP datagram This is a really important A’s NIC sends frame ...
reportfeb13
... disaster site must be able to transmit and receive critical information related to Building design and floor plan, Building structural integrity, Stability and safety of building pathways, and Location of emergency personnel. A sensor network is a possible solution for this need to quickly establish ...
... disaster site must be able to transmit and receive critical information related to Building design and floor plan, Building structural integrity, Stability and safety of building pathways, and Location of emergency personnel. A sensor network is a possible solution for this need to quickly establish ...
Chapter 8 Internet Protocols
... • IP re-assembles at destination only • Uses fields in header —Data Unit Identifier (ID) • Identifies end system originated datagram – Source and destination address – Protocol layer generating data (e.g. TCP) – Identification supplied by that layer ...
... • IP re-assembles at destination only • Uses fields in header —Data Unit Identifier (ID) • Identifies end system originated datagram – Source and destination address – Protocol layer generating data (e.g. TCP) – Identification supplied by that layer ...
Internet Protocols
... IP routing protocols are dynamic. Dynamic routing calls for routes to be calculated automatically at regular intervals by software in routing devices. This contrasts with static routing, where routers are established by the network administrator and do not change until the network administrator chan ...
... IP routing protocols are dynamic. Dynamic routing calls for routes to be calculated automatically at regular intervals by software in routing devices. This contrasts with static routing, where routers are established by the network administrator and do not change until the network administrator chan ...
this PDF file
... Supervisory control and data acquisition (SCADA) system consists of remote terminal unit (RTU), SCADA hosts, control process equipment and system from multiple locations, field devices monitor, and exchange data from various distributed control systems along the local and wide area network. The func ...
... Supervisory control and data acquisition (SCADA) system consists of remote terminal unit (RTU), SCADA hosts, control process equipment and system from multiple locations, field devices monitor, and exchange data from various distributed control systems along the local and wide area network. The func ...
IP addresses
... Determines the format in which to represent the data. Possible choices are EBCDIC or ASCII format. ...
... Determines the format in which to represent the data. Possible choices are EBCDIC or ASCII format. ...
ELEN E6761 Fall `00
... Addresses and a Type field Addresses: 6 bytes, frame is received by all adapters on a LAN and dropped if address does not match Type: indicates the higher layer protocol, mostly IP but others may be supported such as Novell IPX and AppleTalk) CRC: checked at receiver, if error is detected, the ...
... Addresses and a Type field Addresses: 6 bytes, frame is received by all adapters on a LAN and dropped if address does not match Type: indicates the higher layer protocol, mostly IP but others may be supported such as Novell IPX and AppleTalk) CRC: checked at receiver, if error is detected, the ...
Secured Network Design
... CS – Listen before transmitting If a device detects a signal from another device, it waits for a specified amount of time before attempting to transmit. When there is no traffic detected, a device transmits its message. While this transmission is occurring, the device continues to listen for ...
... CS – Listen before transmitting If a device detects a signal from another device, it waits for a specified amount of time before attempting to transmit. When there is no traffic detected, a device transmits its message. While this transmission is occurring, the device continues to listen for ...
SEMESTER 1 Chapter 5
... - Usable (assignable) host addresses * Study the reference table included above. - Network IP address * Study the reference table included above. - Broadcast IP address * Study the reference table included above. * Network IP address - The IPv4 host address is logically ANDed with its subnet mask to ...
... - Usable (assignable) host addresses * Study the reference table included above. - Network IP address * Study the reference table included above. - Broadcast IP address * Study the reference table included above. * Network IP address - The IPv4 host address is logically ANDed with its subnet mask to ...
CCNA 1 v5.1 Practice Final Exam Answers 2016 100% PDF
... o An ARP request is sent to all devices on the Ethernet LAN and contains the IP address of the destination host and its multicast MAC address. o When a host is encapsulating a packet into a frame, it refers to the MAC address table to determine the mapping of IP addresses to MAC addresses. o If no d ...
... o An ARP request is sent to all devices on the Ethernet LAN and contains the IP address of the destination host and its multicast MAC address. o When a host is encapsulating a packet into a frame, it refers to the MAC address table to determine the mapping of IP addresses to MAC addresses. o If no d ...
Top-Down Network Design
... • What address would this node use to send to all devices on its subnet? ...
... • What address would this node use to send to all devices on its subnet? ...
Networked Connected Devices - Purdue University :: Computer
... Defines concept of domain enumeration – Uses default DNS search domain from DHCP and sends it PTR queries for a series of special names that a DNS admin can set up to answer these questions: • What are the interesting domains to browse for services? (b._dns-sd._udp) • From that list what is the reco ...
... Defines concept of domain enumeration – Uses default DNS search domain from DHCP and sends it PTR queries for a series of special names that a DNS admin can set up to answer these questions: • What are the interesting domains to browse for services? (b._dns-sd._udp) • From that list what is the reco ...
Chapter 12 SOLUTIONS to Practice Problems
... If there are 7 billion people in the world, and we disperse Ethernet addresses uniformly, how many addresses are available for each person? Solution: Dividing the number of possible addresses by 7 billion people results in 10,000 Ethernet addresses ...
... If there are 7 billion people in the world, and we disperse Ethernet addresses uniformly, how many addresses are available for each person? Solution: Dividing the number of possible addresses by 7 billion people results in 10,000 Ethernet addresses ...
ICMP (Internet Control Message Protocol)
... Stateless address auto-configuration (SLAAC) provides a convenient method to assign IP addresses toIPv6 nodes. If you want to use IPv6 SLAAC on an IPv6 node, then it is important to connect that IPv6 node to a network with at least one IPv6 router. This router is configured by the network admi ...
... Stateless address auto-configuration (SLAAC) provides a convenient method to assign IP addresses toIPv6 nodes. If you want to use IPv6 SLAAC on an IPv6 node, then it is important to connect that IPv6 node to a network with at least one IPv6 router. This router is configured by the network admi ...
ip address - St. Xavier`s College
... The designers of the Internet decided to create classes of networks based on network size. For the small number of networks possessing a very large number of nodes, they created the rank Class A network. At the other extreme is the Class C network, reserved for the numerous networks with a small num ...
... The designers of the Internet decided to create classes of networks based on network size. For the small number of networks possessing a very large number of nodes, they created the rank Class A network. At the other extreme is the Class C network, reserved for the numerous networks with a small num ...
IP Addressing
... • Improves efficiency of IP addresses by not consuming an entire address space for each physical network. • Reduces router complexity. Since external routers do not know about subnetting, the complexity of routing tables at external routers is reduced. • Note: Length of the subnet mask need not be i ...
... • Improves efficiency of IP addresses by not consuming an entire address space for each physical network. • Reduces router complexity. Since external routers do not know about subnetting, the complexity of routing tables at external routers is reduced. • Note: Length of the subnet mask need not be i ...
Document
... • TCP/IP supports four other protocols in the network layer: ARP, RARP, ICMP, and IGMP. • Address Resolution protocol (ARP) associates an IP address with the physical address. ARP is used to find the physical address of the node when its Internet address is known. ...
... • TCP/IP supports four other protocols in the network layer: ARP, RARP, ICMP, and IGMP. • Address Resolution protocol (ARP) associates an IP address with the physical address. ARP is used to find the physical address of the node when its Internet address is known. ...
Computer Network Final Exam 2005
... care-of-address: used by home agent to forward datagrams to mobile Foreign agent functions may be done by mobile itself Triangle routing: correspondent-home-network-mobile inefficient when correspondent, mobile are in same network Suppose mobile user moves to another network registers with new ...
... care-of-address: used by home agent to forward datagrams to mobile Foreign agent functions may be done by mobile itself Triangle routing: correspondent-home-network-mobile inefficient when correspondent, mobile are in same network Suppose mobile user moves to another network registers with new ...
Why IPv6 is necessary for new communication scenarios
... Using original outbound source port now as destination port for inbound ...
... Using original outbound source port now as destination port for inbound ...
Wireless LANS and PANS
... • Only service available in ad-hoc network mode • does not use any kind of central control • exchange of data packets based on “best-effort” • support of broadcast and multicast • PCF (Point Coordination Function) (optional): Time-Bounded Service • uses the base station to control all activity in it ...
... • Only service available in ad-hoc network mode • does not use any kind of central control • exchange of data packets based on “best-effort” • support of broadcast and multicast • PCF (Point Coordination Function) (optional): Time-Bounded Service • uses the base station to control all activity in it ...
IP - Florida State University
... • Each computer maintains a cache table – IP address hardware address mapping – Only about computers on the same network ...
... • Each computer maintains a cache table – IP address hardware address mapping – Only about computers on the same network ...
I²C
I²C (Inter-Integrated Circuit), pronounced I-squared-C, is a multi-master, multi-slave, single-ended, serial computer bus invented by Philips Semiconductor (now NXP Semiconductors). It is typically used for attaching lower-speed peripheral ICs to processors and microcontrollers. Alternatively I²C is spelled I2C (pronounced I-two-C) or IIC (pronounced I-I-C). Since October 10, 2006, no licensing fees are required to implement the I²C protocol. However, fees are still required to obtain I²C slave addresses allocated by NXP.Several competitors, such as Siemens AG (later Infineon Technologies AG, now Intel mobile communications), NEC, Texas Instruments, STMicroelectronics (formerly SGS-Thomson), Motorola (later Freescale), and Intersil, have introduced compatible I²C products to the market since the mid-1990s.SMBus, defined by Intel in 1995, is a subset of I²C that defines the protocols more strictly. One purpose of SMBus is to promote robustness and interoperability. Accordingly, modern I²C systems incorporate policies and rules from SMBus, sometimes supporting both I²C and SMBus, requiring only minimal reconfiguration.