Consider three LANs interconnected by two routers, as shown in Figure 5JX.
a. Assign IP addresses to all of the interfaces. For Subnet I use addresses of the form 192.168. I .xxx; for Subnet 2 uses addresses of the form 192.168.2.xxx; and for Subnet 3 use addresses of the form 192.168J.xx.

b. Assign MAC addresses to all of the adapters.
c. Consider sending an IP datagram from Host E to Host B. Suppose all of the ARP tables are up to date. Enumerate all the steps, as done for the single-router example in Section 5.4.2.
d. Repeat (c), now assuming that the ARP table in the sending host is empty (and the other tables are up to date).
 

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A E B. Subnet 1 D Subnet 3 Subnet 2 A E B. Subnet 1 D Subnet 3 Subnet 2