COMS 4995-1 Networking Laboratory
... only 13 bits available for the fragment offset, the offset is given as a multiple of eight bytes. As a result, the first and second fragment have a size of 996 bytes (and not 1000 bytes). This number is chosen since 976 is the largest number smaller than 1000–20= 980 that is divisible by eight. The ...
... only 13 bits available for the fragment offset, the offset is given as a multiple of eight bytes. As a result, the first and second fragment have a size of 996 bytes (and not 1000 bytes). This number is chosen since 976 is the largest number smaller than 1000–20= 980 that is divisible by eight. The ...
subnetting - WordPress.com
... In this example a 3 bit subnet mask was used. There are 6 (23-2) subnets available with this size mask (remember that subnets with all 0's and all 1's are not allowed). Each subnet has 8190 (213-2) nodes. Each subnet can have nodes assigned to any address between the Subnet address and the Broadcast ...
... In this example a 3 bit subnet mask was used. There are 6 (23-2) subnets available with this size mask (remember that subnets with all 0's and all 1's are not allowed). Each subnet has 8190 (213-2) nodes. Each subnet can have nodes assigned to any address between the Subnet address and the Broadcast ...
F41023946
... on demand i,e node does not discover and maintain route until it demand. It is also a distance-vector routing protocol. AODV uses three main messages to determine a route they are RREQ, RREP, and RERR as follows: Route Request Message (RREQ): When a source node wants to communicate with another node ...
... on demand i,e node does not discover and maintain route until it demand. It is also a distance-vector routing protocol. AODV uses three main messages to determine a route they are RREQ, RREP, and RERR as follows: Route Request Message (RREQ): When a source node wants to communicate with another node ...
CCNA Fast Track - K C Communications
... NOTE… Ethernet II/DIX frame preamble is 8 bytes long with no SD byte, Ethernet II/DIX frame has TYPE field and no LENGTH or 802.2 fields. Ethernet IEEE 802.3 frames have 7 byte preamble, 1 byte SD, Ethernet IEEE 802.3 frames have LENGTH field and no TYPE field, Ethernet IEEE 802.3 frames have 802.2 ...
... NOTE… Ethernet II/DIX frame preamble is 8 bytes long with no SD byte, Ethernet II/DIX frame has TYPE field and no LENGTH or 802.2 fields. Ethernet IEEE 802.3 frames have 7 byte preamble, 1 byte SD, Ethernet IEEE 802.3 frames have LENGTH field and no TYPE field, Ethernet IEEE 802.3 frames have 802.2 ...
Networking Chapter 18
... – Change router firmware password – Disable ability to configure router from over the wireless network – Enter host/domain names if necessary – Enter static IP address, subnet mask, IP addresses of the default gateway, DNS servers if necessary – Configure the DHCP server – Provide static addresses f ...
... – Change router firmware password – Disable ability to configure router from over the wireless network – Enter host/domain names if necessary – Enter static IP address, subnet mask, IP addresses of the default gateway, DNS servers if necessary – Configure the DHCP server – Provide static addresses f ...
TCP/IP: sniffing, ARP attacks, IP fragmentation
... • Sniffing/Spoofing are the bases for hijacking • The attacker waits for an client request • Then, races against the legitimate host to produce a reply that will be accepted by the client • ARP, UDP, and TCP-based variations of this attack ...
... • Sniffing/Spoofing are the bases for hijacking • The attacker waits for an client request • Then, races against the legitimate host to produce a reply that will be accepted by the client • ARP, UDP, and TCP-based variations of this attack ...
On Monitoring of End-to-End Packet Reordering over the Internet Bin Ye
... Load balancing policies within networks introduce switch-level parallelism. Route flapping, where routes between autonomous systems (AS) change frequently, also causes different packets of the same stream to take different paths possibly leading to out-of-order delivery. In wireless communication, t ...
... Load balancing policies within networks introduce switch-level parallelism. Route flapping, where routes between autonomous systems (AS) change frequently, also causes different packets of the same stream to take different paths possibly leading to out-of-order delivery. In wireless communication, t ...
Chapter 5
... uses to soften the complexity of what’s actually in gray box. • Box contains an ethernet LAN switch, an 802.11g wireless access point, and a router. ...
... uses to soften the complexity of what’s actually in gray box. • Box contains an ethernet LAN switch, an 802.11g wireless access point, and a router. ...
Chapter-11 - University of the Western Cape
... internetworks one hop at the time. At each stop, the next destination is calculated by matching the datagram’s destination network address with an outgoing interface. If no match is found, the datagram is sent to a default router. ...
... internetworks one hop at the time. At each stop, the next destination is calculated by matching the datagram’s destination network address with an outgoing interface. If no match is found, the datagram is sent to a default router. ...
CIT 1100 PC Maintenance and Upgrade
... • CIT 1100 PC Maintenance and Upgrade is intended to be an introduction to hardware, an understanding of the terminology used as well as hands on experience. ...
... • CIT 1100 PC Maintenance and Upgrade is intended to be an introduction to hardware, an understanding of the terminology used as well as hands on experience. ...
The Layers of OSI Model
... In Figure 2.8 a node with physical address 10 sends a frame to a node with physical address 87. The two nodes are connected by a link. At the data link level this frame contains physical addresses in the header. These are the only addresses needed. The rest of the header contains other information n ...
... In Figure 2.8 a node with physical address 10 sends a frame to a node with physical address 87. The two nodes are connected by a link. At the data link level this frame contains physical addresses in the header. These are the only addresses needed. The rest of the header contains other information n ...
Dan's slide set
... Note: things sent in the network layer are normally called packets, whereas things sent in the transport layer are normally called messages. ...
... Note: things sent in the network layer are normally called packets, whereas things sent in the transport layer are normally called messages. ...
Reclaiming Network-wide Visibility Using Ubiquitous Endsystem Monitors Evan Cooke University of Michigan
... external addresses will typically traverse some kind of proxy device. With simple modifications to track the setup and teardown of connections for the proxied traffic, these devices can provide excellent visibility into traffic where one side of the connection is not itself part of the controlled netwo ...
... external addresses will typically traverse some kind of proxy device. With simple modifications to track the setup and teardown of connections for the proxied traffic, these devices can provide excellent visibility into traffic where one side of the connection is not itself part of the controlled netwo ...
Seminar Report
... capacity and coverage is dynamically shifted to accommodate changing user patterns. As people congregate and create pockets of high demand, they also create additional routes for each other, thus enabling additional access to network capacity. Users will automatically hop away from congested routes ...
... capacity and coverage is dynamically shifted to accommodate changing user patterns. As people congregate and create pockets of high demand, they also create additional routes for each other, thus enabling additional access to network capacity. Users will automatically hop away from congested routes ...
Slide 1
... Created by system software Easy to use and easy to understand Provides services such as ...
... Created by system software Easy to use and easy to understand Provides services such as ...
TCP 00F0 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
... Exploit-based: CRII, Nimda, Slammer, Blaster, Witty, etc… Human-assisted: SoBig, NetSky, MyDoom, etc… 6200 malware variants in 2004; 6x increase from 2003 [Symantec] >200,000 malware variants in first 6mos of 2006 [Symantec] ...
... Exploit-based: CRII, Nimda, Slammer, Blaster, Witty, etc… Human-assisted: SoBig, NetSky, MyDoom, etc… 6200 malware variants in 2004; 6x increase from 2003 [Symantec] >200,000 malware variants in first 6mos of 2006 [Symantec] ...
Chapter 5
... A resolves protocol address for B for protocol messages from an application on A sent to an application on B . A does not resolve a protocol address for F . Through the internet layer, A delivers to F by routing ...
... A resolves protocol address for B for protocol messages from an application on A sent to an application on B . A does not resolve a protocol address for F . Through the internet layer, A delivers to F by routing ...
slides - The Fengs
... – Program that promiscuously monitors and injects network traffic to/from machines it is protecting – Monitors net for SYN packets not acknowledged after a certain period of time – If it detects problems with a half-open connection it can • Send RST packets to the sender to release destination resou ...
... – Program that promiscuously monitors and injects network traffic to/from machines it is protecting – Monitors net for SYN packets not acknowledged after a certain period of time – If it detects problems with a half-open connection it can • Send RST packets to the sender to release destination resou ...
CCNA 1 Module 10 Routing Fundamentals and Subnets
... © 2003, Cisco Systems, Inc. All rights reserved. ...
... © 2003, Cisco Systems, Inc. All rights reserved. ...
00208r1P802-15_TG3-MAC-LAYER-PRES - IEEE-SA
... Voice:[(847) 576-3311], FAX: [(847) 576-5292], E-Mail:[[email protected]] Re: [ 802.15.1 based MAC layer submission, in response of the Final Call for Proposal ] Abstract: [This contribution is a WPAN proposal for a high performance 30 Megabit per second, 5GHz system that addresses the requir ...
... Voice:[(847) 576-3311], FAX: [(847) 576-5292], E-Mail:[[email protected]] Re: [ 802.15.1 based MAC layer submission, in response of the Final Call for Proposal ] Abstract: [This contribution is a WPAN proposal for a high performance 30 Megabit per second, 5GHz system that addresses the requir ...
Quality of Service in IP Networks
... Creates classes of service for traffic flows with different priorities • Aggregates large numbers of individual flows at the edge of the network into small numbers of aggregated flows through the core of the network • Flows are marked at network edge in the ...
... Creates classes of service for traffic flows with different priorities • Aggregates large numbers of individual flows at the edge of the network into small numbers of aggregated flows through the core of the network • Flows are marked at network edge in the ...
FT3410671073
... environment, MNs are free to join or leave the network at any point of time, resulting in a highly dynamic network environment compared to wired network [2] Routing protocols used in MANET network are divided into two categories: Proactive and Reactive. Proactive routing protocols are tabledriven pr ...
... environment, MNs are free to join or leave the network at any point of time, resulting in a highly dynamic network environment compared to wired network [2] Routing protocols used in MANET network are divided into two categories: Proactive and Reactive. Proactive routing protocols are tabledriven pr ...
300Mbps Dual-Band 802.11n Wireless Gigabit Router
... radio frequency of 5GHz for watching HD videos or playing online games additionally. At the same time, it enables other users still surf the Internet via the original radio frequency of 2.4 GHz. The WDRT-731U is just like 2 totally independent Access Points in one device for you. ...
... radio frequency of 5GHz for watching HD videos or playing online games additionally. At the same time, it enables other users still surf the Internet via the original radio frequency of 2.4 GHz. The WDRT-731U is just like 2 totally independent Access Points in one device for you. ...
Wake-on-LAN
Wake-on-LAN (WoL) is an Ethernet or Token ring computer networking standard that allows a computer to be turned on or awakened by a network message.The message is usually sent by a program executed on another computer on the same local area network. It is also possible to initiate the message from another network by using subnet directed broadcasts or a WOL gateway service. Equivalent terms include wake on WAN, remote wake-up, power on by LAN, power up by LAN, resume by LAN, resume on LAN and wake up on LAN. In case the computer being awakened is communicating via Wi-Fi, a supplementary standard called Wake on Wireless LAN (WoWLAN) must be employed.The WOL and WoWLAN standards are often supplemented by vendors to provide protocol-transparent on-demand services, for example in the Apple Bonjour wake-on-demand (Sleep Proxy) feature.