Frame/Packet trace: in the following network diagram, PC1 sends a file to PC2 through R1 and R2. The three network IDs are shown on the corresponding subnets below. The MAC addresses of all interfaces are listed in the following table. (1) Please assign IP addresses to each interface of PCI, RI, R2, and PC2. (2) The are three network sniffers A, B and C attached to the different subnets in this system. Please show the observed source/destination IPs and MACs by A, B, and C PC1 R1 R2 PC2 172, 16, 1128/25 01.64/26 f0/14eth0 192.168.1.0/24 eth0 fo/0 Host Name Interface MAC address IP address PC1 R1 R1 R2 R2 PC2 eth0 f0/0 f0/1 f0/0 fo/1 eth0 2-22-22 44:44-44-44-44 44 By sniffer A Source IP- Destination IP- Source MAC address- Destination MAC address - By sniffer B Source IP- Destination IP- Source MAC address- Destination MAC address - By sniffer C: Source IP- Destination IP- Source MAC address- Destination MAC address