Consider two mobile nodes in a foreign network having a foreign agent. Is it possible for the two mobile nodes to use the same care-of address in mobile IP? Explain your answer.
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- In newer implementations, repeat ARP queries about a timed out entry are first sent unicast, in order to reduce broadcast traffic. What would have to happen to create a situation where the repeated unicast query for a given IP address fails, but a follow-up broadcast query for that same IP address succeeds?A host on your network is said to have a static IP address if it offers a service that requires the server to always use the same IP address. This kind of IP address can only be used once. In the event when a certain IP address has to be assigned manually, which IP addressing technique is considered to be the most effective? Why is this the case, exactly?In an IPv4 packet, the value of HLEN is 15, and the value of the total length field is 0X0064. How many bytes of data are being carried by this packet? Only correct answer needed , else downvoted
- A simple CIDR routing table is shown in Figure 1. For each of the destination IP addresses below, indicate which entry in the table it matches. Indicating none if no routing entry can be matched (hint: given an IP packet, the router will check whether there is a routing entry which can be used to route this packet, by checking the destination IP address in the packet with each routing entry: based on the subnet mask of each routing entry, it can extract the network ID and compare it with each routing entry; if there are a few routing entries which can match, the entry with the longest subnet mask wins). Address Mask Output Port 10.19.0.0/16 1 10.19.128/17 2 10.19.192/18 3 10.19.192/19 4 0.0.0.0/1 5 141.219.2.10 10.10.10.10 10.19.86.141 10.19.193.6 10.19.255.86 10.19.192.18For each subnet assign a private IP address (of the form a.b.c.d/y) such that:• The IP range is contained within 10.0.0.0/24.• The number of wasted IP address in each subnet is minimized.• The Forwarding table in the central router is minimized. Once IP address for each subnet are assigned, provide the forwarding table for the centralrouter. IN THE details PLZ ...You could provide a static IP address to a host on your network when the service that host provides must always originate from the same server. In this case, the address would not change. I need to manually assign an IP address; which approach is the most effective way to do this? How did it get to be this way, and what factors contributed to it?
- The TTL behaviour for IP-to-Label or Label-to-IP connections is depicted in the below image. Ingress LSR receives a packet with a TTL value of 289 arriving. What would the TTL value be for the ingress and egress LSRs? the letters (A, B, C, D, E, F, G, and H). TTL = 289 MPLS Label IPv4 Packet Ingress LSR TTL = A: TTL = B: LSR TTL= C: TTL=D: LSR TTL=E: TTL=F: Label Switched Path TTL= G: LSR TTL=H: Egress LSRShow the original (unabbreviated) form of the following IPv6 addresses. i.FDEC: 74 : : BOFF : 0 : FFFOThe TTL behaviour for IP-to-Label or Label-to-IP connections is depicted in the below image. Ingress LSR receives a packet with a TTL value of 289 arriving. What would the TTL value be for the ingress and egress LSRs? the letters (A, B, C, D, E, F, G, and H). TTL = 289 MPLS Label IPv4 Packet Ingress LSR TTL = A: TTL = B: LSR TTL= C: TTL=D: X LSR TTL=E: TTL=F: Label Switched wh TTL= G: LSR TTL=H: Egress LSR
- In this problem we investigate whether either UDP or TCP provides a degree of end-point authentication. a. Consider a server that receives a request within a UDP packet and responds to that request within a UDP packet (for example, as done by a DNS server). If a client with IP address X spoofs its address with address Y, where will the server send its response? b. Suppose a server receives a SYN with IP source address Y, and after responding with a SYNACK, receives an ACK with IP source address Y with the correct acknowledgment number. Assuming the server chooses a random initial sequence number and there is no "man-in-the-middle," can the server be certain that the client is indeed at Y (and not at some other address X that is spoofing Y)?Assume that a Host A contacts a name server B to get a cached DNS response (i.e., B does not have to go to the root name server, TLD name server, or authoritative name server to get a response). Suppose that A and B can communicate using UDP or TCP. However, any packet sent from A to B or from B to A has an independent chance of being lost of 10%. Let the round trip time for a packet to go from A to B and back (or B to A and back) be RTT. Let A start at a time = 0s. When the time is 2RTT, which of TCP or UDP is the better option for A to get the DNS response from B? Better here means higher probability of correctly receiving the DNS responseThe 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)