Your company uses connection and filter tables to implement a stateful firewall. Your company's network address is $142\mathrm{.}241\mathrm{.}0\mathrm{.}0/16.$ Construct a filter table of the form given in Table $8\mathrm{.}8$ to realize a firewall that:

$($a$)$ permits internal users to make DNS queries to external DNS servers

$($b$)$ permits internal users to set up Telnet $($port $23)$ sessions with external hosts

$($c$)$ permits external users to visit the internal web server at $142\mathrm{.}241\mathrm{.}56\mathrm{.}13$

$($d$)$ blocks all other in$-$bound and out$-$bound traffic

Hint: you should have $7$ rows, $2$ each for $($a$)-($c$)$ and one for $($d$).$ For each two entry pair in $($a$)-($c$),$ one rule will establish outgoing behavior and another incoming behavior. Again, please see Table $8\mathrm{.}8.$