Question $4(30$ points$)-$ Border Gateway Protocol

In the network shown in Figure $1,$ use the following address space:

$50\mathrm{.}50\mathrm{.}50\mathrm{.}192/26$ for AS$3($and the link between R$3$ and R$1)$

$30,30\mathrm{.}30,128/25$ for AS$5($and the link between R$2$ and R$5)$

Then do the following

a$)(3$ points$)$ Circle all subnets and assign a subnet number and subnet mask to each

subnet.

b$)(6$ points$)$ Assign addresses to all router interfaces and hosts.