A router that has the routing table in Figure 8-11 receives an incoming IPv4 packet. The...
A router that has the routing table in Figure 8-11 receives an incoming IPv4 packet. The source IPv4 address in the arriving packet is 10.55.72.234. The des-tination IPv4 address is 10.4.6.7. The TTL value is 1. The Protocol Field value is 6. What will the router do with this packet? (Hint: Carefully consider all the fields in the IP and TCP headers. Think like a router.)
Homework Answers
When a router receives a packet, it will reduce the TTL and send it to the next hop. But when the TTL is 1, router will discard the packet and will send the ICMP unreachable back to the sender.
* This method to used to find the number of hops between a sender and the destination.
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A router that has the routing table in Figure 8-11 receives an
incoming IPv4 packet. The...
29. Consider the following LAN with one Ether switch S, one intra-domain router R, and two hosts X and Y Assume switch S has been just powered on. 1. Describe the routing and address resolution st...
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Test Your Understanding 10. a) Distinguish between Step 1 and Step 2 in the routing process. b) If any row other than the default row matches an IPv4 address, why will the router never choose...
Test Your Understanding 10. a) Distinguish between Step 1 and Step 2 in the routing process. b) If any row other than the default row matches an IPv4 address, why will the router never choose the default row? c) Which rows in Figure 8-11 match 128.171.17.13? (Don't forgst the default row.) Show your calculations for rows that match. d) Which of these is the best-match row? Justify your answer. e) What rows match 172.40.17.6? Show your calculations for rows that...
I am studying the CCNA 200-125 books written by WENDELL ODOM. Here it talks about the...
I am studying the CCNA 200-125 books written by WENDELL
ODOM.
Here it talks about the Link layer in TCP/IP model.
Figure 1-11 shows four steps, in the first step Larry
encapsulates the IP packet between an Ethernet header and Ethernet
trailer, creating an Ethernet frame.
Larry encapsulates the IP packet, what does this mean?
Is it like compressing a file into a zip and compressing the IP
packet into a frame?
I've read the previous pages about the upper...
Dears,, I want unique, complete and correct answers to these questions: Q 1. Assume an organization...
Dears,, I want unique, complete and correct answers to these questions: Q 1. Assume an organization has the classless address 15.25.16.8/17, then find the following: The first address The last address The total number of addresses The network address Does the address 15.25.15.127 belongs to this address space? Does the address 15.25.128.0 belongs to this address space? Q2. a) In an IPv4 packet, the value of HLEN is (1010)2 , and the value of the total length field is (005A)16....
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Question 1 The size of the datagram is determined by the application that sends the data....
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2) IP and MAC addressing. True or False. One point for each correct answer, zero points for each incorrect answer. Many of the questions refer to the following network consisting of three 10Mbps Ether...
2) IP and MAC addressing. True or False. One point for each correct answer, zero points for each incorrect answer. Many of the questions refer to the following network consisting of three 10Mbps Ethernet segments, one switch, and one router. Assume all ARP tables are up-to-date unless otherwise stated. a) Consider a network consisting of Ethernets, hubs, switches, and routers. Suppose one of the hubs is replaced with a switch. Then the network administrator must redefine some IP addresses. True...
EXPLAIN in details why is it true or false. need to be 100% POSTIVE OF ANSWER. SOLVE D E F G H I J 2) (10 points) IP and MAC addressing. True or False. Circle True or False. One point for each corre...
EXPLAIN in details why is it true or false. need to be 100%
POSTIVE OF ANSWER. SOLVE D E F G H I J
2) (10 points) IP and MAC addressing. True or False. Circle True or False. One point for each correct answer, zero points for each incorrect answer. Many of the questions refer the folowing network consisting of three 10Mbps Ethernet segments, one switch, and one router. Assume all ΛΕΡ tables are up-to-date unless otherwise stated Switch Ronter...
1. Let’s consider the network shown in Figure 1 where Snort is deployed. 1.1: In Figure...
1. Let’s consider the network shown in Figure 1 where Snort is
deployed.
1.1: In Figure 1, why is Snort deployed in the DMZ instead of
the Internal Network? (9 points)
1.2: In Figure 1, say True or False to the following statement:
“Snort can see both incoming packets from the left firewall and
outgoing packets from the right firewall”. (5 points)
1.3: In Figure 1, assume a packet P matches the following Snort
rule when the packet is analyzed...
29. Consider the following LAN with one Ether switch S, one intra-domain router R, and two hosts X and Y Assume switch S has been just powered on. 1. Describe the routing and address resolution steps performed at X, Y, and S when X sends an IP packet to Y. 2. Describe the routing and address resolution steps performed at X, Y, and S when Y replies an IP packet to X. 3. Describe the routing and address resolution steps...
Test Your Understanding 10. a) Distinguish between Step 1 and Step 2 in the routing process. b) If any row other than the default row matches an IPv4 address, why will the router never choose the default row? c) Which rows in Figure 8-11 match 128.171.17.13? (Don't forgst the default row.) Show your calculations for rows that match. d) Which of these is the best-match row? Justify your answer. e) What rows match 172.40.17.6? Show your calculations for rows that...
I am studying the CCNA 200-125 books written by WENDELL
ODOM.
Here it talks about the Link layer in TCP/IP model.
Figure 1-11 shows four steps, in the first step Larry
encapsulates the IP packet between an Ethernet header and Ethernet
trailer, creating an Ethernet frame.
Larry encapsulates the IP packet, what does this mean?
Is it like compressing a file into a zip and compressing the IP
packet into a frame?
I've read the previous pages about the upper...
Q1 Error detection/correction Can these schemes correct bit errors: Internet checksums, two-dimendional parity, cyclic redundancy check (CRC) A. Yes, No, No B. No, Yes, Yes c. No, Yes, No D. No, No, Yes E. Ho, hum, ha Q2 CRC vs Internet checksums Which of these is not true? A. CRC's are commonly used at the link layer B. CRC's can detect any bit error of up to r bits with an r-bit EDC. c. CRC's are more resilient to bursty...
EXPLAIN in details why is it true or false. need to be 100%
POSTIVE OF ANSWER. SOLVE D E F G H I J
2) (10 points) IP and MAC addressing. True or False. Circle True or False. One point for each correct answer, zero points for each incorrect answer. Many of the questions refer the folowing network consisting of three 10Mbps Ethernet segments, one switch, and one router. Assume all ΛΕΡ tables are up-to-date unless otherwise stated Switch Ronter...
1. Let’s consider the network shown in Figure 1 where Snort is
deployed.
1.1: In Figure 1, why is Snort deployed in the DMZ instead of
the Internal Network? (9 points)
1.2: In Figure 1, say True or False to the following statement:
“Snort can see both incoming packets from the left firewall and
outgoing packets from the right firewall”. (5 points)
1.3: In Figure 1, assume a packet P matches the following Snort
rule when the packet is analyzed...
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