Chapter 23 - IP over ATM. Upon completion you will be able to: Review the features of an ATM WAN, understand how an a datagram can pass through an ATM WAN, understand how an IP packet is encapsulated in cells, understand how cells are routed in an ATM network, understand the function of ATMARP.
Upon completion you will be able to: Review the features of an ATM WAN, understand how an a datagram can pass through an ATM WAN, understand how an IP packet is encapsulated in cells, understand how cells are routed in an ATM network, understand the function of ATMARP.
Lecture 16 - TCP/IP vulnerabilities and DoS attacks: IP spoofing, SYN flooding, and the shrew DoS attack. The goals of this chapter are: To review the IP and TCP packet headers, controlling TCP traffic congestion and the shrew DoS attack, the TCP SYN flood attack for denial of service, IP source address spoofing attacks,...
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This lab exercise helps develop an understanding of IP addresses and how TCP/IP networks operate. It is primarily a written lab exercise. However, it would be worthwhile to review some real network IP addresses using the command line utilities ipconfig for Windows NT/2000/XP or winipcfg for Windows 9x/ME. IP addresses are used to uniquely identify individual TCP/IP networks and hosts, such as computers and printers, on those networks in order for devices to communicate. Workstations and servers on a TCP/IP network are called hosts and each has a unique IP address.
Each router has a full picture of the network topology, including bandwidth information for links to remote networks. Therefore, each router is able to independently select a loop-free and efficient pathway, based on cost, to reach every network in the area.
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Module 1: Reviewing the Suite of TCP/IP Protocols
Hai học viên một nhóm 2 pc ví dụ: PC1 và PC2 sử dụng Windows 2003 server, khai báo IP cho PC của mình: ví dụ : PC1: IP : 10.0.0.100 SM: 255.0.0.0 GW:10.0.0.2 DNS:220.127.116.11 PC2: IP: 10.0.0.200 SM: 255.0.0.0 GW:10.0.0.2 DNS:18.104.22.168 Lab1: thực hiện lệnh Ping: 1. Tại PC1, vào Start chọn Run gõ vào lệnh CMD 2.
Drops are to be expected. Multicast
applications should not expect reliable delivery of data and should
be designed accordingly. Reliable Multicast is still an area for
much research. Expect to see more developments in this area.
Some DoS attacks can be avoided by applying vendor patches to affected software. For
example, many vendors have patched their IP implementations to prevent intruders from
taking advantage of the IP reassembly bugs. A few DoS attacks cannot be stopped, but their
scope of affected areas can be constrained.