Is the source IP address 192.168.1.101. The destination IP address is 138.96.146.2.f) If traceroute (usually on Unix/Linux) sending UDP instead of ICMP, IP protocol field are equal to 1?The IP Protocol field indicates the protocol layer above IP in the protocol stack, in the case of the on-going is UDP, 0x11.g) ICMP Echo request messages in this section other than ICMP Echo request messages in the previous section?The ICMP Echo request message in the previous section has a ttl is 128. In this section, initial ttl by 1 to probe the first router on the path to the destination. ICMP Echo request messages every three probes per router, ttl, then add 1 to probe the next router. h) ICMP error messages observed, they have more school than ICMP Echo messages?ICMP error message Time-to-live exceeded (type = 3, code = 0) contain the IP header + ICMP header of the ICMP Echo request message that caused the error.I) observed three last message which host the source received. They are different from the ICMP error message? Why should others?The three last message received by the source host is the message the ICMP Echo reply (type = 0, code = 0). They do reply, destination host reported that the ICMP message has to be the destination host, path tracing process ends.j) When traceroute, a link has a higher latency of the link. Two top router address of this link.
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