Consider the shown network that has multiple LANs interconnected by routers R1 and R2. The network has switches represented by S1, S2, and S3.

(a) How many LANs in the network? For each LAN, assign IP addresses to all of its interfaces. Use addresses of the form 192.168.y.x; where y identifies each LAN and x identifies each interface within the LAN.

(b) Assign appropriate MAC addresses to all of the interfaces adapters.

(c) Consider the process of sending an IP datagram from host A to host F. Assume the ARP table in host A is empty and all other tables are up to date. Write down all the steps of this process, as explained in the lecture (there is no need to draw any datagrams or frames).

(d)Give the source and destination MAC addresses in the frame encapsulating the IP datagram along its route from host A to host F. Also, give the source and destination IP addresses in this IP datagram along this route.

S1 S2 S3 R2 R1 S1 S2 S3 R2 R1