SweetBait: Zero-Hour Worm Detection and Containment Using Honeypots
... for repeated byte sequences in an attempt to identify worm propagation and generate a signature. For the scanning process to be effective it is necessary to utilise stream reconstruction for sequenced, connection based protocols such as TCP, since the underlying IP layer may deliver packets out of o ...
... for repeated byte sequences in an attempt to identify worm propagation and generate a signature. For the scanning process to be effective it is necessary to utilise stream reconstruction for sequenced, connection based protocols such as TCP, since the underlying IP layer may deliver packets out of o ...
Addresses, Protocols, and Ports Reference
... Example 1—If you have the Class B address 129.10.0.0 and you want to use the entire third octet as part of the extended network prefix instead of the host number, you must specify a subnet mask of 11111111.11111111.11111111.00000000. This subnet mask converts the Class B address into the equivalent ...
... Example 1—If you have the Class B address 129.10.0.0 and you want to use the entire third octet as part of the extended network prefix instead of the host number, you must specify a subnet mask of 11111111.11111111.11111111.00000000. This subnet mask converts the Class B address into the equivalent ...
Techniques for and Conquences of Packet Filtering, Interception
... Generally network people don't like perturbing packets once they are put into the communication system. Generally security people want to be able to do all sorts of things with packets at any point in the system, ...
... Generally network people don't like perturbing packets once they are put into the communication system. Generally security people want to be able to do all sorts of things with packets at any point in the system, ...
Re-ECN - Bob Briscoe
... • sender (and receiver): re-ECN transport (from legacy ECN) • ingress policer (deliberately) thinks legacy ECN is highly congested – 50% for nonce senders, 100% for legacy ECN ...
... • sender (and receiver): re-ECN transport (from legacy ECN) • ingress policer (deliberately) thinks legacy ECN is highly congested – 50% for nonce senders, 100% for legacy ECN ...
New Methods and Combinatorics for Bypassing Intrusion Prevention
... is based on the requirements from RFC 791 that was written in 1981. Among other things, the RFC says, “In general, an implementation must be conser vative in its sending behavior, and liberal in its receiving behavior. That is, it must be careful to send well-formed datagrams, but must accept any da ...
... is based on the requirements from RFC 791 that was written in 1981. Among other things, the RFC says, “In general, an implementation must be conser vative in its sending behavior, and liberal in its receiving behavior. That is, it must be careful to send well-formed datagrams, but must accept any da ...
RTP
... payload formats. Payload formats specify an application specific sub-layer just above RTP. these formats provide additional functions needed for just that application. However, all of these formats describe how RTP is to be used for carrying a single media session between two endpoints. There are sc ...
... payload formats. Payload formats specify an application specific sub-layer just above RTP. these formats provide additional functions needed for just that application. However, all of these formats describe how RTP is to be used for carrying a single media session between two endpoints. There are sc ...
Homework #4 Due was due March 27
... 22. A DHCPv6 server is operating very similarly to an IPv4 DHCP server by passing out IPv6 addresses, subnet masks, and default gateways, as well as optional items such as DNS server addresses. In which mode is this server? A. Active B. Passive C. Stateful D. Stateless ...
... 22. A DHCPv6 server is operating very similarly to an IPv4 DHCP server by passing out IPv6 addresses, subnet masks, and default gateways, as well as optional items such as DNS server addresses. In which mode is this server? A. Active B. Passive C. Stateful D. Stateless ...
Context-Based Intrusion Detection Using Snort, Nessus and Bugtraq
... – Some IDS do not provide a declarative rule specification language • Difficult to verify, compare and update attack scenarios – Many IDS only rely on one packet or on one TCP stream to identify intrusions • More complex attacks need to be programmed (two specification systems) • False negatives and ...
... – Some IDS do not provide a declarative rule specification language • Difficult to verify, compare and update attack scenarios – Many IDS only rely on one packet or on one TCP stream to identify intrusions • More complex attacks need to be programmed (two specification systems) • False negatives and ...
Hell of a Handshake: Abusing TCP for Reflective
... Our analysis is based on all responses that arrive up to 60 seconds after sending the last SYN segment. In total, we find up to 62,736 SYN/ACK, 2,203 PSH, and 1,593 RST amplifiers responding to our SYN segments (the remaining hosts presumably went offline in the mean-time). For SYN/ACK, we find an a ...
... Our analysis is based on all responses that arrive up to 60 seconds after sending the last SYN segment. In total, we find up to 62,736 SYN/ACK, 2,203 PSH, and 1,593 RST amplifiers responding to our SYN segments (the remaining hosts presumably went offline in the mean-time). For SYN/ACK, we find an a ...
ATN-2000
... ATN Re-use/Extension to Standards – ATN End-System Protocols • Provide the Airborne and Ground Applications with an ATN Interface to enable communication between them • Dialogue Service Specified over Fast Byte Upper Layer Communications Services • Transport Protocol(COTP/CLTP) enhanced to provide ...
... ATN Re-use/Extension to Standards – ATN End-System Protocols • Provide the Airborne and Ground Applications with an ATN Interface to enable communication between them • Dialogue Service Specified over Fast Byte Upper Layer Communications Services • Transport Protocol(COTP/CLTP) enhanced to provide ...
PPT - Electrical and Computer Engineering
... Partitioning an IP address block into different networks An ISP (UW) gets a block of public IP addresses (129.97.0.0/16) from IANA/ARIN Public IP address space ...
... Partitioning an IP address block into different networks An ISP (UW) gets a block of public IP addresses (129.97.0.0/16) from IANA/ARIN Public IP address space ...
Tutorial 1
... • NAPs (network access points) offer connections to large organizations and businesses. • Those businesses provide Internet access to other business and individuals as ISPs. • Internet service providers (ISPs) provide customers with software to connect to the ISP, browse the Web, send and receive e- ...
... • NAPs (network access points) offer connections to large organizations and businesses. • Those businesses provide Internet access to other business and individuals as ISPs. • Internet service providers (ISPs) provide customers with software to connect to the ISP, browse the Web, send and receive e- ...
ppt
... • Focus on network to application layer • We will deal with: • Protocol rules and algorithms • Investigate protocol trade-offs • Why this way and not another? ...
... • Focus on network to application layer • We will deal with: • Protocol rules and algorithms • Investigate protocol trade-offs • Why this way and not another? ...
All mesh networks are not created equal
... for specific applications. Advanced Metering Infrastructure (AMI) is an example of a smart grid application that often takes advantage of the enhanced coverage provided by multi-hop radios. Mesh networks for AMI, commonly referred to as a Neighborhood Area Network (NAN), benefit from the resiliency ...
... for specific applications. Advanced Metering Infrastructure (AMI) is an example of a smart grid application that often takes advantage of the enhanced coverage provided by multi-hop radios. Mesh networks for AMI, commonly referred to as a Neighborhood Area Network (NAN), benefit from the resiliency ...
Part I: Introduction
... • Arbitrary topologies can be supported, cycling is limited by TTL counters (and good routing protocols) • Provide firewall protection against broadcast storms ...
... • Arbitrary topologies can be supported, cycling is limited by TTL counters (and good routing protocols) • Provide firewall protection against broadcast storms ...
02_TCPIP
... application at the top. This means you can swap out the link layer every few years as faster media becomes available, and not affect your application at the top This is a Big Deal. The vast majority of money and programming time are tied up in the application layer, and you can’t throw that away eve ...
... application at the top. This means you can swap out the link layer every few years as faster media becomes available, and not affect your application at the top This is a Big Deal. The vast majority of money and programming time are tied up in the application layer, and you can’t throw that away eve ...
SDN, NFV, OpenFlow, and ForCES - IETF-93 tutorial
... e.g., at Points of Presence and Data Centers Many (mistakenly) believe that the main reason for NFV is to move networking functions to data centers where one can benefit from economies of scale Some telecomm functionalities need to reside at their conventional location • Loopback testing • E2E perfo ...
... e.g., at Points of Presence and Data Centers Many (mistakenly) believe that the main reason for NFV is to move networking functions to data centers where one can benefit from economies of scale Some telecomm functionalities need to reside at their conventional location • Loopback testing • E2E perfo ...
lecture6-Attacks
... legitimate traffic, hindering detection. Flow of traffic must consume target’s ...
... legitimate traffic, hindering detection. Flow of traffic must consume target’s ...
SEMESTER_2_Chapter_4KEY
... Establishment of adjacencies with neighboring routers using the EIGRP hello protocol. Support for VLSM and manual route summarization. These allow EIGRP to create hierarchically structured large networks. Although routes are propagated in a distance vector manner, the metric is based on minimum band ...
... Establishment of adjacencies with neighboring routers using the EIGRP hello protocol. Support for VLSM and manual route summarization. These allow EIGRP to create hierarchically structured large networks. Although routes are propagated in a distance vector manner, the metric is based on minimum band ...
Fastpass: A Centralized “Zero-Queue” Datacenter Network
... which is important because many datacenter applications launch hundreds or even thousands of request-response interactions to fulfill a single application transaction. Because the longest interaction can be a major part of the transaction’s total response time, reducing the 99.9th or 99.99th percent ...
... which is important because many datacenter applications launch hundreds or even thousands of request-response interactions to fulfill a single application transaction. Because the longest interaction can be a major part of the transaction’s total response time, reducing the 99.9th or 99.99th percent ...
Mobile IP
... Changes to MNs are required. Security: Routing table are changed based on messages sent by mobile node. Additionally all system in the network can easily obtain a copy of all packets destined for an MN. ...
... Changes to MNs are required. Security: Routing table are changed based on messages sent by mobile node. Additionally all system in the network can easily obtain a copy of all packets destined for an MN. ...
Michael and Leena`s slides
... lengths depending on instruction •Jump back a byte into an instruction already disassembled and use it as part of another ...
... lengths depending on instruction •Jump back a byte into an instruction already disassembled and use it as part of another ...
Chapter 5b - Department of Information Technology
... carry network layer data of any network layer protocol (not just IP) at same time ability to demultiplex upwards bit transparency: must carry any bit pattern in the data field error detection (no correction) connection liveness: detect, signal link failure to network layer network layer address ...
... carry network layer data of any network layer protocol (not just IP) at same time ability to demultiplex upwards bit transparency: must carry any bit pattern in the data field error detection (no correction) connection liveness: detect, signal link failure to network layer network layer address ...
How to Lease the Internet in Your Spare Time
... customers. For example, the airline industry has airports (infrastructure providers), which allocate certain gates (and sometimes even entire terminals) to particular airlines; airlines (service providers) form relationships with multiple such airports. As infrastructure providers, airports amortize ...
... customers. For example, the airline industry has airports (infrastructure providers), which allocate certain gates (and sometimes even entire terminals) to particular airlines; airlines (service providers) form relationships with multiple such airports. As infrastructure providers, airports amortize ...