Single Packet IP Traceback in AS-level Partial Deployment Scenario
... to deal with certain denial-of-service (DoS) attacks, where the source IP address is spoofed by attackers. Identifying the sources of attack packets is the first step in making attackers accountable. In addition, figuring out the network path which the attack traffic follows can improve the efficacy ...
... to deal with certain denial-of-service (DoS) attacks, where the source IP address is spoofed by attackers. Identifying the sources of attack packets is the first step in making attackers accountable. In addition, figuring out the network path which the attack traffic follows can improve the efficacy ...
Multicast - Virginia Tech
... •How to address a datagram sent to these receivers? Each multicast datagram to carry the IP addresses of all recipients? Not scalable for large number of recipients Use address indirection A single identifier used for a group of receivers ...
... •How to address a datagram sent to these receivers? Each multicast datagram to carry the IP addresses of all recipients? Not scalable for large number of recipients Use address indirection A single identifier used for a group of receivers ...
Chapter 7
... maximum value limited to 15? Answer: “When RIP was designed and implemented, dynamic routing protocols were not widely used. Instead, networks relied mostly on static routing. RIP, even with its hop-count-metric – which seems very poor to us today – was quite a big improvement. Counting intermediate ...
... maximum value limited to 15? Answer: “When RIP was designed and implemented, dynamic routing protocols were not widely used. Instead, networks relied mostly on static routing. RIP, even with its hop-count-metric – which seems very poor to us today – was quite a big improvement. Counting intermediate ...
IP Networks Curriculum
... Understanding Voice Communications: a Technical Introduction™.................................................................................................. 8 Springfield: An Introduction to Telecommunications™....................................................................................... ...
... Understanding Voice Communications: a Technical Introduction™.................................................................................................. 8 Springfield: An Introduction to Telecommunications™....................................................................................... ...
Computer Center, CS, NCTU
... – Subnetting, CIDR, and Netmask (8) CIDR (Classless Inter-Domain Routing) • Use address mask instead of old address classes to determine the destination network • CIDR requires modifications to routers and routing protocols Need to transmit both destination address and mask ...
... – Subnetting, CIDR, and Netmask (8) CIDR (Classless Inter-Domain Routing) • Use address mask instead of old address classes to determine the destination network • CIDR requires modifications to routers and routing protocols Need to transmit both destination address and mask ...
ccna4-mod3-PPP
... • debug arp – Indicates whether the router is sending information about or learning about routers (with ARP packets) on the other side of the WAN cloud. Use this command when some nodes on a TCP/IP network are responding, but others are not. • debug frame-relay lmi – Obtains Local Management Interfa ...
... • debug arp – Indicates whether the router is sending information about or learning about routers (with ARP packets) on the other side of the WAN cloud. Use this command when some nodes on a TCP/IP network are responding, but others are not. • debug frame-relay lmi – Obtains Local Management Interfa ...
NSIS: A New Extensible IP Signaling Protocol Suite
... signaling messages then establishes the path later taken by the data traffic. Thus, the concept of path discovery is less relevant. During the work of the NSIS working group, several key problems surfaced in the use of RSVP (see [6] and [9]): • SVP was designed when node mobility was in its infancy ...
... signaling messages then establishes the path later taken by the data traffic. Thus, the concept of path discovery is less relevant. During the work of the NSIS working group, several key problems surfaced in the use of RSVP (see [6] and [9]): • SVP was designed when node mobility was in its infancy ...
Slides for Chapter 3: Networking and
... routers. In a single LAN no routing is required. Responsible for transmission of packets between nodes that are directly connected by a physical link. In a WAN transmission is between pairs of routers or between routers and hosts. In a LAN it is between any pair of hosts. The circuits and hardware t ...
... routers. In a single LAN no routing is required. Responsible for transmission of packets between nodes that are directly connected by a physical link. In a WAN transmission is between pairs of routers or between routers and hosts. In a LAN it is between any pair of hosts. The circuits and hardware t ...
Ch. 3
... After the PPP link establishment phase is complete, the local router sends a "challenge" message to the remote node. The remote node responds with a value calculated using a one-way hash function, which is typically Message Digest 5 (MD5). This response is based on the password and challenge message ...
... After the PPP link establishment phase is complete, the local router sends a "challenge" message to the remote node. The remote node responds with a value calculated using a one-way hash function, which is typically Message Digest 5 (MD5). This response is based on the password and challenge message ...
Global Information Systems and Software Technology (GISST)
... (either the destination node, or a router) into the address on the local network? E.g. IP -> Ethernet. Each machine keeps a mapping of IP address to physical addresses in a cache. E.g. cascade.cs.ubc.ca 08:00:20:79:70:f5 ...
... (either the destination node, or a router) into the address on the local network? E.g. IP -> Ethernet. Each machine keeps a mapping of IP address to physical addresses in a cache. E.g. cascade.cs.ubc.ca 08:00:20:79:70:f5 ...
CCNA5.0 Instructor PPT
... Purpose of Dynamic Routing Protocols (cont.) Main components of dynamic routing protocols include: Data structures - Routing protocols typically use tables or databases for its operations. This information is kept in RAM. Routing protocol messages - Routing protocols use various types of message ...
... Purpose of Dynamic Routing Protocols (cont.) Main components of dynamic routing protocols include: Data structures - Routing protocols typically use tables or databases for its operations. This information is kept in RAM. Routing protocol messages - Routing protocols use various types of message ...
"Resilient Overlay Networks"
... fault-tolerance needs, do not often require such a large address block, and cannot effectively multi-home. One alternative may be “provider-based addressing,” where an organization gets addresses from multiple providers, but this requires handling two distinct sets of addresses on its hosts. It is u ...
... fault-tolerance needs, do not often require such a large address block, and cannot effectively multi-home. One alternative may be “provider-based addressing,” where an organization gets addresses from multiple providers, but this requires handling two distinct sets of addresses on its hosts. It is u ...
PDF - This Chapter (405.0 KB)
... The hostname is used in CLI prompts and default configuration filenames. If you do not configure the router hostname, the router uses the factory-assigned default hostname “Router.” Do not expect capitalization and lowercasing to be preserved in the hostname. Uppercase and lowercase characters are t ...
... The hostname is used in CLI prompts and default configuration filenames. If you do not configure the router hostname, the router uses the factory-assigned default hostname “Router.” Do not expect capitalization and lowercasing to be preserved in the hostname. Uppercase and lowercase characters are t ...
IP Multicasting: Concepts, Algorithms, and Protocols
... Protocol (BOOTP) and Open Shortest path First (OSPF) protocol are among these applications. Using multicast messages and sending the query to those hosts which are potentially capable of providing this service would be of great help. Although some applications use multicast messages to transmit a pa ...
... Protocol (BOOTP) and Open Shortest path First (OSPF) protocol are among these applications. Using multicast messages and sending the query to those hosts which are potentially capable of providing this service would be of great help. Although some applications use multicast messages to transmit a pa ...
BSCI 2.0 - Information Systems Technology
... OSPF Routers When an OSPF router boots or reboots (because of a power failure), the only information that will be in the routing table is Directly Connected routes. Not until OSPF routers have ‘discovered’ each other, will they establish adjacencies and share route information Before an adjacency c ...
... OSPF Routers When an OSPF router boots or reboots (because of a power failure), the only information that will be in the routing table is Directly Connected routes. Not until OSPF routers have ‘discovered’ each other, will they establish adjacencies and share route information Before an adjacency c ...
This chapter covers the following topics: • Characteristics of roaming
... It is safe to assume that issues such as signal strength, retry counters, missed beacons, and other MAC layer concepts discussed in Chapter 2 are included in the algorithms. For example, recall from Chapter 2 the discussion about distributed coordination function (DCF) operation. The binary exponent ...
... It is safe to assume that issues such as signal strength, retry counters, missed beacons, and other MAC layer concepts discussed in Chapter 2 are included in the algorithms. For example, recall from Chapter 2 the discussion about distributed coordination function (DCF) operation. The binary exponent ...
HP 12500 Switch Series
... (NSF/GR): using standardized-based IETF protocols, the 12500 switch provides nonstop forwarding (switching/routing) for Layer 3 routing protocols (Control Plane - OSPF, BGP, and MPLS), providing hitless failover • Ultrareliable architecture: combining hardware redundancy at every layer (power suppli ...
... (NSF/GR): using standardized-based IETF protocols, the 12500 switch provides nonstop forwarding (switching/routing) for Layer 3 routing protocols (Control Plane - OSPF, BGP, and MPLS), providing hitless failover • Ultrareliable architecture: combining hardware redundancy at every layer (power suppli ...
VERTICAL HORIZON VH-2402-L3 FAST ETHERNET SWITCH
... have an IP interface assigned to them) can be thought of as network links – not just as a collection of associated end users. Further, Layer 3 VLANs are assigned an IP interface address and subnet mask to enable IP routing between them. IEEE 802.1Q VLANs must be configured on the switch before they ...
... have an IP interface assigned to them) can be thought of as network links – not just as a collection of associated end users. Further, Layer 3 VLANs are assigned an IP interface address and subnet mask to enable IP routing between them. IEEE 802.1Q VLANs must be configured on the switch before they ...
FIREWALLS
... • User control: Controls access to a service according to which user is attempting to access it. This feature is typically applied to users inside the firewall perimeter (local users). It may also be applied to incoming traffic from external users; the latter requires some form of secure authenticat ...
... • User control: Controls access to a service according to which user is attempting to access it. This feature is typically applied to users inside the firewall perimeter (local users). It may also be applied to incoming traffic from external users; the latter requires some form of secure authenticat ...
Ch. 13 - PPP
... • debug arp – Indicates whether the router is sending information about or learning about routers (with ARP packets) on the other side of the WAN cloud. Use this command when some nodes on a TCP/IP network are responding, but others are not. • debug frame-relay lmi – Obtains Local Management Interfa ...
... • debug arp – Indicates whether the router is sending information about or learning about routers (with ARP packets) on the other side of the WAN cloud. Use this command when some nodes on a TCP/IP network are responding, but others are not. • debug frame-relay lmi – Obtains Local Management Interfa ...
cis185-ROUTE-lecture2-EIGRP-Part1
... Released in 1992 with Cisco IOS Software Release 9.21. Enhancement of Cisco’s: Interior Gateway Routing Protocol (IGRP). Both are Cisco proprietary, operate only on: Cisco routers ...
... Released in 1992 with Cisco IOS Software Release 9.21. Enhancement of Cisco’s: Interior Gateway Routing Protocol (IGRP). Both are Cisco proprietary, operate only on: Cisco routers ...
