Consider three LANs interconnected by 2 routers, as shown in Figure 6.33.

a.Assign IP addresses to all the interfaces. For Subnet 1 use addresses of the form 192.168.1.xxx; for Subnet 2 use addresses of the form 192.168.2.xxx; and for Subnet 3 use addresses of the form 192.168.3.xxx.

b.Assign MAC addresses to all 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 6.4.1.

d.Repeat (c), now assuming that the ARP table in the sending host is empty (and the other tables are up to date).

Subnet 1 Subnet 3 Subnet 2 Figure 6.33 Three subnets, interconnected by routers