- Văn bản
- Lịch sử
In this lab, we’ll investigate the
In this lab, we’ll investigate the 802.11 wireless network protocol. Before beginning this
lab, you might want to re-read Section 6.3 in the text. Since we’ll be delving a bit deeper
into 802.11 than is covered in the text, you might want to check out “A Technical
Tutorial on the 802.11 Protocol,” by Pablo Brenner (Breezecom Communications),
http://www.sss-mag.com/pdf/802_11tut.pdf, and “Understanding 802.11 Frame Types,”
by Jim Geier, http://www.wi-fiplanet.com/tutorials/article.php/1447501. And, of course,
there is the “bible” of 802.11 - the standard itself, “ANSI/IEEE Std 802.11, 1999 Edition
(R2003),” http://gaia.cs.umass.edu/wireshark-labs/802.11-1999.pdf. In particular, you
may find Table 1 on page 36 of the standard particularly useful when looking through the
wireless trace.
In all of the Wireshark labs thus far, we’ve captured frames on a wired Ethernet
connection. Here, since 802.11 is a wireless link-layer protocol, we’ll be capturing frames
“in the air.” Unfortunately, most of the device drivers for wireless 802.11 NICs
(particularly for Windows operating systems) don’t provide the hooks to capture/copy
received 802.11 frames for use in Wireshark (see Figure 1 in Lab 1 for an overview of
packet capture). Thus, in this lab, we’ll provide a trace of captured 802.11 frames for you
to analyze and assume in the questions below that you are using this trace. If you’re able
to capture 802.11 frames using your version of Wireshark, you’re welcome to do so.
Additionally, if you’re really into frame capture, you can buy a small USB device,
AirPcap, http://www.cacetech.com, that captures 802.11 frames and provides integrated
support for Wireshark under Windows.
lab, you might want to re-read Section 6.3 in the text. Since we’ll be delving a bit deeper
into 802.11 than is covered in the text, you might want to check out “A Technical
Tutorial on the 802.11 Protocol,” by Pablo Brenner (Breezecom Communications),
http://www.sss-mag.com/pdf/802_11tut.pdf, and “Understanding 802.11 Frame Types,”
by Jim Geier, http://www.wi-fiplanet.com/tutorials/article.php/1447501. And, of course,
there is the “bible” of 802.11 - the standard itself, “ANSI/IEEE Std 802.11, 1999 Edition
(R2003),” http://gaia.cs.umass.edu/wireshark-labs/802.11-1999.pdf. In particular, you
may find Table 1 on page 36 of the standard particularly useful when looking through the
wireless trace.
In all of the Wireshark labs thus far, we’ve captured frames on a wired Ethernet
connection. Here, since 802.11 is a wireless link-layer protocol, we’ll be capturing frames
“in the air.” Unfortunately, most of the device drivers for wireless 802.11 NICs
(particularly for Windows operating systems) don’t provide the hooks to capture/copy
received 802.11 frames for use in Wireshark (see Figure 1 in Lab 1 for an overview of
packet capture). Thus, in this lab, we’ll provide a trace of captured 802.11 frames for you
to analyze and assume in the questions below that you are using this trace. If you’re able
to capture 802.11 frames using your version of Wireshark, you’re welcome to do so.
Additionally, if you’re really into frame capture, you can buy a small USB device,
AirPcap, http://www.cacetech.com, that captures 802.11 frames and provides integrated
support for Wireshark under Windows.
0/5000
Trong phòng thí nghiệm này, chúng tôi sẽ điều tra các giao thức mạng không dây 802.11. Trước khi bắt đầu đây Phòng thí nghiệm, bạn có thể muốn tái đọc phần 6.3 trong văn bản. Kể từ khi chúng tôi sẽ delving sâu hơn một chút vào 802.11 than được bảo hiểm trong văn bản, bạn có thể muốn kiểm tra "A kỹ thuật Hướng dẫn trên giao thức 802.11,"bằng cách Pablo Brenner (truyền thông Breezecom), http://www.SSS-Mag.com/PDF/802_11tut.PDF, và "Sự hiểu biết 802.11 khung loại" bởi Jim Geier, http://www.wi-fiplanet.com/tutorials/article.php/1447501. Và, tất nhiên, có là "kinh thánh" của 802.11 - tiêu chuẩn riêng của mình, ANSI/IEEE Std 802.11, 1999 Edition" (R2003),"http://gaia.cs.umass.edu/wireshark-labs/802.11-1999.pdf. Đặc biệt, bạn có thể tìm thấy bảng 1 trên trang 36 của tiêu chuẩn đặc biệt hữu ích khi tìm kiếm thông qua các dấu vết không dây.Trong tất cả các phòng thí nghiệm Wireshark vậy, đến nay, chúng tôi đã chiếm khung trên một dây Ethernet kết nối. Ở đây, kể từ khi 802.11 là một giao thức tầng liên kết không dây, chúng tôi sẽ chụp khung "trong không khí." Thật không may, hầu hết các trình điều khiển thiết bị cho NIC không dây 802.11 (đặc biệt là đối với Windows hệ điều hành) không cung cấp các móc để chụp/sao chép nhận được 802.11 khung để sử dụng trong Wireshark (xem hình 1 trong phòng thí nghiệm 1 cho một tổng quan về gói chụp). Vì vậy, trong phòng thí nghiệm này, chúng tôi sẽ cung cấp một dấu vết của chiếc 802.11 khung cho bạn phân tích và giả định trong những câu hỏi dưới đây mà bạn đang sử dụng này theo dõi. Nếu bạn có thể để nắm bắt 802.11 khung bằng cách sử dụng các phiên bản của Wireshark, bạn đang chào đón để làm như vậy. Ngoài ra, nếu bạn đang thực sự vào khung hình chụp, bạn có thể mua một thiết bị USB nhỏ, AirPcap, http://www.cacetech.com, mà bắt 802.11 khung và cung cấp tích hợp hỗ trợ cho Wireshark dưới cửa sổ.
đang được dịch, vui lòng đợi..
In this lab, we’ll investigate the 802.11 wireless network protocol. Before beginning this
lab, you might want to re-read Section 6.3 in the text. Since we’ll be delving a bit deeper
into 802.11 than is covered in the text, you might want to check out “A Technical
Tutorial on the 802.11 Protocol,” by Pablo Brenner (Breezecom Communications),
http://www.sss-mag.com/pdf/802_11tut.pdf, and “Understanding 802.11 Frame Types,”
by Jim Geier, http://www.wi-fiplanet.com/tutorials/article.php/1447501. And, of course,
there is the “bible” of 802.11 - the standard itself, “ANSI/IEEE Std 802.11, 1999 Edition
(R2003),” http://gaia.cs.umass.edu/wireshark-labs/802.11-1999.pdf. In particular, you
may find Table 1 on page 36 of the standard particularly useful when looking through the
wireless trace.
In all of the Wireshark labs thus far, we’ve captured frames on a wired Ethernet
connection. Here, since 802.11 is a wireless link-layer protocol, we’ll be capturing frames
“in the air.” Unfortunately, most of the device drivers for wireless 802.11 NICs
(particularly for Windows operating systems) don’t provide the hooks to capture/copy
received 802.11 frames for use in Wireshark (see Figure 1 in Lab 1 for an overview of
packet capture). Thus, in this lab, we’ll provide a trace of captured 802.11 frames for you
to analyze and assume in the questions below that you are using this trace. If you’re able
to capture 802.11 frames using your version of Wireshark, you’re welcome to do so.
Additionally, if you’re really into frame capture, you can buy a small USB device,
AirPcap, http://www.cacetech.com, that captures 802.11 frames and provides integrated
support for Wireshark under Windows.
lab, you might want to re-read Section 6.3 in the text. Since we’ll be delving a bit deeper
into 802.11 than is covered in the text, you might want to check out “A Technical
Tutorial on the 802.11 Protocol,” by Pablo Brenner (Breezecom Communications),
http://www.sss-mag.com/pdf/802_11tut.pdf, and “Understanding 802.11 Frame Types,”
by Jim Geier, http://www.wi-fiplanet.com/tutorials/article.php/1447501. And, of course,
there is the “bible” of 802.11 - the standard itself, “ANSI/IEEE Std 802.11, 1999 Edition
(R2003),” http://gaia.cs.umass.edu/wireshark-labs/802.11-1999.pdf. In particular, you
may find Table 1 on page 36 of the standard particularly useful when looking through the
wireless trace.
In all of the Wireshark labs thus far, we’ve captured frames on a wired Ethernet
connection. Here, since 802.11 is a wireless link-layer protocol, we’ll be capturing frames
“in the air.” Unfortunately, most of the device drivers for wireless 802.11 NICs
(particularly for Windows operating systems) don’t provide the hooks to capture/copy
received 802.11 frames for use in Wireshark (see Figure 1 in Lab 1 for an overview of
packet capture). Thus, in this lab, we’ll provide a trace of captured 802.11 frames for you
to analyze and assume in the questions below that you are using this trace. If you’re able
to capture 802.11 frames using your version of Wireshark, you’re welcome to do so.
Additionally, if you’re really into frame capture, you can buy a small USB device,
AirPcap, http://www.cacetech.com, that captures 802.11 frames and provides integrated
support for Wireshark under Windows.
đang được dịch, vui lòng đợi..
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