Wireshark_NAT_v6.0.pdf - Wireshark Lab NAT v6.0 Supplement to Computer Networking A Top-Down th Approach 6 ed J.F Kurose and K.W Ross Tell me and I

Wireshark_NAT_v6.0.pdf - Wireshark Lab NAT v6.0 Supplement...

This preview shows page 1 - 3 out of 4 pages.

© 2005-21012, J.F Kurose and K.W. Ross, All Rights Reserved 1 References to figures and sections are for the 6 th edition of our text, Computer Networks, A Top-down Approach, 6 th ed., J.F. Kurose and K.W. Ross, Addison-Wesley/Pearson, 2012. 2 Download the zip file and extract the files need for this lab. In this lab, we’ll capture packets from a simple web request from a client PC in a home network to a server. Within the home network, the home network router provides a NAT service, as discussed in Chapter 4. Wireshark trace-collection scenario. As in our other Wireshark labs, we collect a Wireshark trace on the client PC in our home network. This file is called NAT_home_side 2 . Because we are also interested in the packets being sent by the NAT Figure 1 shows our Wireshark Lab: NAT v6.0 Supplement to Computer Networking: A Top-Down Approach, 6 th ed., J.F. Kurose and K.W. Ross “Tell me and I forget. Show me and I remember. Involve me and I understand.” Chinese proverb In this lab, we’ll investigate the behavior of the NAT protocol. This lab will be different from our other Wireshark labs, where we’ve captured a trace file at a single Wireshark measurement point. Because we’re interested in capturing packets at both the input and output sides of the NAT device, we’ll need to capture packets at two locations. Also, because many students don’t have easy access to a NAT device or to two computers on which to take Wireshark measurements, this isn’t a lab that is easily done “live” by a student. Therefore in this lab, you will use Wireshark trace files that we’ve captured for you. Before beginning this lab, you’ll probably want to review the material on NAT section 4.4 in the text 1 . 1. NAT Measurement Scenario trace file: NAT_ISP_side trace file: NAT_home_side Figure 1 : NAT trace collection scenario ISP network
Image of page 1
Image of page 2
Image of page 3

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture