Problem $4$:

Consider three LANs interconnected by two routers as shown in the Figure.

$1.$ Consider sending an IP datagram from host E to Host B$.$ Suppose all of the ARP tables are up$-$t$-$date. Enumerate all the steps, as done for the single router example in section $6\mathrm{.}4\mathrm{.}1.$

$2.$ Now repeat the previous steps assuming that the ARP table in the sending host is empty and the other tables are up to date.