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Host A sends a UDP datagram containing 8880 bytes of user data to host B over an Ethernet LAN. Ethernet frames may carry data up to 1500 bytes (i.e. MTU = 1500 bytes). Size of UDP header is 8 bytes and size of IP header is 20 bytes. There is no option field in IP header. How many total number of IP fragments will be transmitted and what will be the contents of offset field in the last fragment?

Convert binary network address to decimal IP Address: 192.168.20.20/24 Host Address 192 168 20 20 Binary Host Address         Binary Subnet Mask 11111111 11111111 11111111 00000000 Binary Network Address         Network Address         B. Convert the host address to biary to get the binary host address. Use truth table AND to get the binanry network address. Lastly, convert the binary network address to decimal. C. Show the solution

Apply subnetting for the following topology, use the major network is “160.20.0.0". Find only the subnet id and the broadcast IP address for all the subnets. LaptapT Laptop Laptpr Lapties Routero Laptao Laptap Laptupr Laptapo 26200 295OT-24 2620M 95OT-24 Router1 Router2 Switcha Switcho Laptap Laptop Laptpr Laptp Subnet id Broadcast IP Address Subnet 1 a. b. Subnet 2 с. d. Subnet 3 е. f. Subnet 4 g. h. Subnet 5 i. j. Subnet 6 k. 1.

Assume a packet loss is detected after the 27th round by the receipt of a timeout, what will be the value of the congestion window size and what will be the value of the ssthresh ? (We use TCP Reno here.) 17 16 15 14 13 12 11 O 1 2 3 4 56 7 89 1o 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Transmission Round Window Size

. Suppose Host A sends over a TCP connection to Host B one segment with sequence number 3777 and 1500 bytes of data. Assuming the segment is received correctly, what is the sequence number of the ACK that Host B sents to Host A for this segment? 2.Calculate the the Internet checksum of 0100 1011 1001 1111 and1100 1100 0101 1101. 3.How many control messages are required to close a TCP connection?

List all the static routes on each of the 4 routers required for full communication across the topology. The addresses with question marks have been relabeled. I think each router should have 3 static routes. This is using the ip route command (ip route <netid> <net mask> <next hop>)

Every host in an IPv4 network has a 1- second resolution real-time clock with battery backup. Each host needs to generate up to 1000 unique identifiers per second. Assume that each host has a globally unique IPv4 address. Design a 50-bit globally unique ID for this purpose. After what period (in seconds) will the identifiers generated by a host wrap around?

The first of these packets is from your computer to the DHCP server telling it to release the lease on your IP address.  The next 4 packets renew that lease.  Note that the source address on the “DHCP Discover” and “DHCP Request” packets is 0.0.0.0.  This indicates that your computer does not actually use its new IP address until the interchange has completed.  Also note that the destination address in each of the 4 packets is a broadcast address[1].  It should be obvious to you why the first two packets are broadcasted, but what about the last two?  Can you explain this? Answer the questions in your Word document right after you post a snapshot of the DHCP packet screen. (#4)

Assume a packet loss is detected after the 27th round by the receipt of a 3-dupACK, what will be the value of the congestion window size and what will be the value of the ssthresh ? (We use TCP Reno here.) 17 16 15 14 13 12 11 O 1 2 3 4 s6 7 89 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Transmission Round Window Size

The following packet was generated by snort.. [**] [1:491:8] INFO FTP Bad login [**] [Classification: Potentially Bad Traffic] [Priority: 2] 04/25-08:24:53.007701 192.168.202.16:21 -> 192.168.202.19:46217 TCP TTL:64 TOS:OxO ID:50316 IpLen:20 DgmLen:74 DF ***AP*** Seq: O×52A35467 Ack: O×4E8DE79E Win: 0x39 TcpLen: 32 TCP Options (3) => NOP NOP TS: 85758994 127601244 Please answer the following questions based on the above packet data .. Q1. What is the Source IP address? Q2. What is the Destination IP address Q3. Based on your information above and the 4-tuple, what type of server is this ? Q4. What is the IP identification number? Q5. What is the SID that trigger this rule? Q6. What is the revision of the rule?

For a given an IP v4 datagram, with header fields: HLEN - 5. Total length - 2220 and flag field (RDM) - 000. If this datagram is required to pass through a network of MTU - 1164 byte and need to be fragmented, choose the correct answer 1_For the given packet, the header size is 10 bytes 20 bytes 40 bytes 30bytes 2_The number of fragments to which the given packet is fragmented to pass through the network of MTU: 164: three Tour two Six Network Ineed answer after 30 min

Hosts A sends a UDP datagram containing 8880 bytes of user data to host B over an Ethernet LAN Ethernet frames may carry data up to 1500 bytes (ie MTU = 1500byles ) Size of UDP header is 8 bytes and size of IP header is 20 bytes There is no option field in IP header How may total number of IP fragments will be transmitted and what will be the contents of offset field in the last fragment?

Suppose you are retrieving your email at the start of a new day at the College and your mail first reaches the BMCC’s web server. Assuming the BMCC webserver does not have the MAC Address of the workstation receiving these mail messages. Explain in detail how the ARP protocol is used in locating the final destination of the internal network computer that will be receiving this Internet traffic. The conversion from IPv4 to IPv6 Addressing has been completed for about 30% of Internet traffic after 22 years. Explain in detail why the Maximum Transmission Unit (MTU) of Ethernet frames is an obstacle in this conversion (hint: look closely at the TCP and IP headers for IPv4 to IPv6 Addressing).

An organization has just obtained a class-B IP 145.93.*.*/16, but it wants to divide it into 32 subnetworks, how many bits should be used to represent the subnet ID (excluding the network ID)? Do all the subnets have the same subnet mask? If the aforementioned question is true, what is the subnet mask? Otherwise, please list the subnet mask for each subnet.

For the following Ips, write the network name, BC address, Prefix length, and thedefault maskNet name BC Prefix length default mask 11.45.3.5  180.90.27.89 190.35.177.98  192.76.19.1 200.30.50.90 100.100.100.100 107.39.50.20  192.3.5.6 

Q' Figure below shows the IPV4 datagram format. Fill the fields from 1 to 5 by choosing the right answers 2 16-bit identifier ID flags 3 4 32 bit source IP address 5 options Data (variable length, typically a TCP or UDP segment) 1- Field (1) is for: a- Time to live b- IP protocol version number c- Type of service d- Header checksum e- Upper layer protocol f- None of them 2- Field (2) is for: a- Time to live b- IP protocol version number c- Type of service d- Header checksum e- Upper layer protocol f- None of above 3- Field (3) is for: a- Time to live b- IP protocol version number c- Type of service d- Header checksum e- 32 bit destination IP address f- None of them

Convert IPV4, Combine Prefix, Apply Subnet, Rewrite new address: Original IPV4 Network Subnet Combined Converted Prefix ID Prefix/Subnet (48 bits) (16) The first valid address in the second 2001:FEFE:8001 1 2001:FEFE:8001:0001 subnet using 172.31.0.0/26 * The LAST valid address in the first subnet using 172.16.10.0/27 * 3000:1235:F100 16 2FOA:4444:0100 156.100.10.0 187.112.0.1 32 20

What is the size of the effective sending window if the following information is collected in the sending TCP: Sending buffer size = 32000 Byte Last Byte Acknowledged (LBA) = 22555 Last Byte Sent (LBS) = 33666 Advertised Window = 15000 Byte Congestion Window (cwnd) = 12000 Byte O1. 32000 O II. 12000 O II. 15000 O V. 889 If two hosts start communicating using TCP Reno (with fast retransmit and fast recovery). What would be the size of the congestion window after the 10th RTT (the window that will be used in the 11th RTT) if the congestion threshold is initially set to 16 MSS and if 3 duplicate acknowledgments have been observed during the 7th RTT. O1. 8 O II. 22 O II. 12 O V.512 What is the maximum advertised window size if the following information is collected about the receiver buffer: Buffer size = 12000 bytes Next Byte Expected (NBE) = 555 Last Byte Read by the application process (LBR) = 222 No out of sequence data received O1. 222 O II. 12000 O II. 555 O IV. 11668

Given the topology below, write the commands to advertise the OSPFv3 networks on the Sohar router. Use the following requirements:  - Enable IPv6 routing- Process ID 10  - Router IDs (Sohar router = 2.2.2.2)  - Advertise Network address for each interface  - LAN interface (G0/0) set to passive interface - Assign Link-Local Addresses (fe80::1) to G0/0

VLSM Create a IP Address scheme using VLSM. You are told to create the following 8 subnets using 10.10.0.0/22. 8. Network H has 59 hosts Complete all the fields in the following table. Make sure to show your work. Network Subnet Netmask CIDR Broadcast Address A B C D E 1. Network A has 50 hosts 2. Network B has 90 hosts 3. Network C has 36 hosts 4. Network D has 190 hosts 5. Network E has 15 hosts 6. Network F has 20 hosts 7. Network G has 100 hosts FGH Number of Hosts

1.The Intra-Site Automatic Tunnel Addressing Protocol is used to transmit IPv6 packets between dual IP layer hosts across an IPv4 network.True or false 2. ICMP is a Network-layer protocol the ping program uses to test whether a computer can communicate with another computer.true or false 3.Addresses starting with fe80 are called link-local IPv6 addresses.true or false 4Routing packets is the key responsibility of the TCP protocol.true or false 5.A zone id is used to distinguish which interface an IPv6 unique local IPv6 address is bound to.true or false

B. Suppose within your Web browser you click on a link to obtain a Web page. The IP address for the associated URL is not cached in your local host, so a DNS lookup is necessary to obtain the IP address. Suppose that two DNS servers are visited before your host receives the IP address from DNS. The first DNS server visited is the local DNS cache, with an RTT delay of RTTO = 5 msecs. The second DNS server contacted has an RTT of 8 msecs. Initially, let's suppose that the Web page associated with the link contains exactly one object, consisting of a small amount of HTML text. Suppose the RTT between the local host and the Web server containing the object is RTTHTTP=63 msecs. 1. Assuming zero transmission time for the HTML object, how much time elapses from when the client clicks on the link until the client receives the object? 2. Suppose the HTML object references 4 very small objects on the same web server. Neglecting transmission times, how much time elapses from when the client…

An organization wants to use the private network number 192.168.90.0 across four subnets. The maximum number of hosts that exist per subnet will be 25. What subnet mask would you use to solve the problem?

Suppose you open your BMCC mailbox first thing on a Monday morning and find that your messages have arrived. Assuming the BMCC server does not have access to the MAC address of the device reading these emails. Explain in detail how the ARP protocol determines which device on the LAN will be the recipient of incoming Internet data. After 22 years, the transition to IPv6 addressing is complete for around 30 percent of Internet traffic. When comparing IPv4 and IPv6 address headers, the Ethernet frames' Maximum Transmission Unit (MTU) stands out as a potential stumbling block.