데이터통신 검색 결과
5 개의 검색 결과가 있습니다.
데이터통신/Wireshark

Wireshark Lab : IP v7.0

1. Select the first ICMP Echo Request message sent by your computer, and expand the Internet Protocol part of the packet in the packet details window. What is the IP address of your computer? >> The IP address of my computer is 192.168.35.170 2. Within the IP packet header, what is the value in the upper layer protocol field? >> The value in the upper layer protocol field is ICMP (1). 3. How man..

2021. 1. 4. 21:51
데이터통신/Wireshark

Wireshark Lab : TCP v7.0

1. What is the IP address and TCP port number used by the client computer (source) that is transferring the file to gaia.cs.umass.edu? To answer this question, it’s probably easiest to select an HTTP message and explore the details of the TCP packet used to carry this HTTP message, using the “details of the selected packet header window” (refer to Figure 2 in the “Getting Started with Wireshark”..

2021. 1. 4. 21:29
데이터통신/Wireshark

Wireshark Lab : UDP v7.0

1. Select one UDP packet from your trace. From this packet, determine how many fields there are in the UDP header. (You shouldn’t look in the textbook! Answer these questions directly from what you observe in the packet trace.) Name these fields. >> UDP header는 4개의 필드를 포함하고 있다. Source Port, Destination Port, Length, Checksum. 2. By consulting the displayed information in Wireshark’s packet conte..

2021. 1. 4. 11:51
데이터통신/Wireshark

Wireshark Lab : DNS v7.0

1. Run nslookup to obtain the IP address of a Web server in Asia. What is the IP address of that server? >> 서버의 IP address는 211.231.99.80 / 203.133.167.16 임. 2. Run nslookup to determine the authoritative DNS servers for a university in Europe. : 옥스포드(Oxford) 대학 http://www.ox.ac.uk/ 으로 결정. >> The authoritative DNS server for Oxford is raptor.dns.ox.ac.uk. 3. Run nslookup so that one of the DNS s..

2021. 1. 4. 11:35
데이터통신/Wireshark

Wireshark Lab : HTTP v7.0

1. Is your browser running HTTP version 1.0 or 1.1? What version of HTTP is the server running? >> 브라우저 HTTP version 1.1. >> 서버 HTTP version 1.1. 2. What languages (if any) does your browser indicate that it can accept to the server? >> Accept-Language: ko\r\n 3. What is the IP address of your computer? Of the gaia.cs.umass.edu server? >> 내 컴퓨터 : ○○○.○○○.○○.○○ / gaia.cs.umass.edu : 128.119.245.1..

2020. 7. 29. 17:59