Question 1 <TCP/IP Addressing Question> The network shown below has the following sessions that have been set up concurrently:
• Telnet session from A to X (Client is A and Server is X).
• SSH session from X to A (Client is X and server is A).
• HTTP session from A to X (Client is A and server is X).
• FTP session from X to A (Client is X and server is A).
Write the frame formats on each network showing all the significant addresses for the following messages: a) Telnet request message from A to X
b) Telnet reply message from X to A
c) SSH request message from X to A
d) SSH reply message from A to X
e) HTTP request message from A to X
f) HTTP reply message from X to A
g) FTP request message from X to A
h) FTP reply message from A to X
i) If a second SSH session is set up from X to A (Client is X and server is A) what would be the message format on each network?
The address notation is (A = IP address, a = MAC address) (and similar for the other nodes). Use the following representation for the frame format:
Source MAC addr, Destination MAC addr, Source IP addr, Destination IP addr, Source Port addr, Destination Port addr, DATA
(A,a) 1 Question 2 <HTTP Analysis Question> Suppose a client-to-server HTTP GET message is the following:
GET /kurose_ross/interactive/quotation4.htm HTTP/1.1
Host: gaia.cs.umass.edu
Accept: text/plain, text/html, image/jpeg, image/gif, audio/mpeg, audio/vnf.wave, video/mp4, video/wmv, application/*, */*
Accept-Language: en-us, en-gb;q=0.6, en;q=0.5, fr, fr-ch, da, ar, cs
If-Modified-Since: Mon, 07 Oct 2019 18:08:57 -0700
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11
Media Types: https://en.wikipedia.org/wiki/Media_type
Tech Blog on User Agents: https://techblog.willshouse.com/2012/01/03/most-common-user-agents/
