a) When we issue the command ping www.iana.org, the ping first needs to find out

Question

a) When we issue the command ping www.iana.org, the ping first needs to find out the IP address of www.iana.org host. It sends a standard DNS query to the DNS server (in our case, it is 192.168.1.1). The DNS server replies with a DNS query response containing the IP address corresponding to www.iana.org . The DNS protocol is described in RFC 1034 and 1035.
i) Which packets in the trace have DNS query and DNS response?

ii) What is the IP address that corresponds to www.iana.org?
            
b) The ping program issues four ICMP echo requests and it receives, if there are no errors, four ICMP echo responses.

i) Which packets correspond to the four ICMP echo requests and which four packets represent the ICMP echo responses?

ii) The ping command reported times for each reply to be received [see the text box in the beginning of this page]. What are the times for these replies as seen in the Wireshark display? [Hint: When you right click on a packet, you will see a menu item

Explanation / Answer

a)

i) handshake

ii)192.168.1.1

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