(c) Assume a router has the following entries in its routing table (cf. Table 1). Table 1: Router Look-up Destination Subnet Number Next Hop 111.40.170.0/23 111.40.168.0/23 111.40.166.0/23 111.40.164.0/22 0.0.0.0/0 R1 R2 R3 R4 R5 What route (next hop) will the router select, using the longest prefix match, for each of the following packet destinations: • 111.40.171.123 • 111.40.169.19 • 111.40.163.151 • 111.40.165.121

(c) Assume a router has the following entries in its routing table (cf. Table 1). Table 1: Router Look-up Destination Subnet Number Next Hop 111.40.170.0/23 111.40.168.0/23 111.40.166.0/23 111.40.164.0/22 0.0.0.0/0 R1 R2 R3 R4 R5 What route (next hop) will the router select, using the longest prefix match, for each of the following packet destinations: • 111.40.171.123 • 111.40.169.19 • 111.40.163.151 • 111.40.165.121

Principles of Information Security (MindTap Course List)

6th Edition

ISBN:9781337102063

Author:Michael E. Whitman, Herbert J. Mattord

Publisher:Michael E. Whitman, Herbert J. Mattord

Chapter6: Security Technology: Access Controls, Firewalls, And Vpns

Section: Chapter Questions

Problem 2RQ

See similar textbooks

Similar questions

In the figure below a router is transferring packets, each of length L= 5 000 bits over a link with a transmission Rate R= 1 Mbps to another router at the other end of the link. The speed prorogation of the light signal on the link is 3x108 m/s. The length of the link is 1 Km. L: packet length (in bits) R: link transmission rates (Mbps) Queue of packets waiting for output link 1-Calculate the total transmission delay. 2- How many packets can be transmitted in one second.
19. ARP is used for: O packet path determination O finding of a mapping IPV6 → MAC address O finding of a mapping IPV4 → MAC address O finding of a mapping IPV4 → TCP address
What a router does when it gets a packet with an unknown destination network address is described in the following.
Suppose a router has the following forwarding table: Destination Address Range Link Interface 0 1 12 3 4 5 6 200.23.24.0/24 30.125.0.0/16 199.25.8.0/24 30.125.34.0/24 123.125.0.0/16 52.33.0.0/16 otherwise For the following destination addresses in the left column, identify the forwarding interface in the right column: 201.23.24.1 30.125.34.125 200.23.24.29 30.125.31.115 123.115.125.2 ✓ [Choose ] ON 56 0 2 1 4 3 [Choose ] + + +
A=32, B=33, C=34, D=35 x1, y1, z1 are the interfaces for the router gateway, while x2, x3, y2, y3, z2, z3 are for the router interface Find the Routing Table R1, R2, and R3 using the following table! Destination Next Hop Interface With the Routing Table that you have specified in point a, which path will PC1B take when communicating with PC2B and PC3B In theory there is a routing table for Network Address 0.0.0.0 with a Subnet Mask of 0.0.0.0, explain the function of this routing table? Does the image network require routing at point c? Why?
A packet switch receives a packet and determines the outbound link to which the packet should be forwarded. When the packet arrives, one other packet is halfway done being transmitted on this outbound link and four other packets are waiting to be transmitted. Packets are transmitted in order of arrival. Suppose all packets are 1,500 bytes and the link rate is 2 Mbps. What is the queuing delay for the packet? More generally, what is the queuing delay when all packets have length L, the transmission rate is R, x bits of the currently-being-transmitted packet have been transmitted, and n packets are already in the queue?
Transmission Control Protocol / Internet Protocol (TCP / IP) is a suite of communication protocols used to connect network devices on the Internet. TCP / IP can also be used as a communication protocol on a private computer network e.g., an intranet or extranet TCP defines how applications can create communication channels over a network. It also manages how a message is divided into smaller packets before they are transmitted over the Internet and reassembled in the correct order at the destination address. IP Address defines how each packet is routed and forwarded to ensure that it reaches the correct destination. Each gateway computer on the network checks this IP address to determine where to route the message. TCP / IP uses the client-server communication model, in which a user or computer (a client) receives a service (such as sending a web page) from another computer (a server) on the In short, the TCP / IP protocol suite is classified as stateless, which means that each…
Suppose a router has built up the routing table shown in Table 3.19. The router can deliver packets directly over interfaces 0 and 1, or it can forward packets to routers R2, R3, or R4. Assume the router does the longest prefix match. Describe what the router does with a packet addressed to each of the following destinations: (a) 128.96.171.92 (b) 128.96.167.151 (c) 128.96.163.151 (d) 128.96.169.192 (e) 128.96.165.121 Table 3.19 Routing Table for Exercise 56 SubnetNumber 128.96.170.0 128.96.168.0 128.96.166.0 128.96.164.0 (default) SubnetMask 255.255.254.0 255.255.254.0 255.255.254.0 255.255.252.0 NextHop Interface 0 Interface 1 R2 R3 R4
5. Which two statements about routing protocols are true? (choose 2) A) OSPF elects designated routers on multi-access links. B) RIP does not support classless routing. C) EIGRP uses broadcast traffic to establish adjacencies with its neighbors. D) RIP does not advertise a route beyond a hop count of 15. E) IBGP is an internal routing protocol.
A router interconnects a subnet, where all the interfaces of the subnets must have the prefix 164.132.62/24. suppose that the Subnet is required to support up to 60 interfaces, provide a network address that satisfies the above.
Course: TCP IP Programming Suppose the router receives a Protocol Data Unit greater than the next hop's Maximum Transmission Unit, what are the two options for the router to do.............. and .....................
Transmission Control Protocol / Internet Protocol (TCP / IP) is a suite of communication protocols used to connect network devices on the Internet. TCP / IP can also be used as a communication protocol on a private computer network e.g., an intranet or extranet. TCP defines how applications can create communication channels over a network. It also manages how a message is divided into smaller packets before they are transmitted over the Internet and reassembled in the correct order at the destination address. IP Address defines how each packet is routed and forwarded to ensure that it reaches the correct destination. Each gateway computer on the network checks this IP address to determine where to route the message. TCP / IP uses the client-server communication model, in which a user or computer (a client) receives a service (such as sending a web page) from another computer (a server) on the network. In short, the TCP / IP protocol suite is classified as stateless, which means that…