Task $1$: IP Subnet planning $(60$ points$)$ You have been given an IP address block of $172*16\mathrm{.}0.\frac{0}{22}.$ You must provide for existing networks as well as future growth.

Subnet assignments $(20$ points$)$:

$1$st subnet, existing student LAN, up to $400$ hosts $(Fa\frac{0}{0}$ on R$2-$Central$)$

$2$nd subnet, future student LAN, up to $180$ hosts

$3$rd subnet, existing ISP LAN, up to $40$ hosts $($Fa$0/0$ on R$1-$ISP$)$

$4$th subnet, future ISP LAN, up to $18$ hosts

$5$th subnet, existing WAN, point$-$to$-$point link: $2$ hosts $($S$0/0/0$ on R$1-$ISP and R$2-$Central$)$

$6$th subnet, future WAN, point$-$to$-$point link: $2$ hosts

$7$th subnet, future WAN, point$-$to$-$point link: $2$ hosts.