IP forwarding (contd)
B) Source & Destination in different networks (fig 3.4 in text)
- Recognize that destination IP address is not on same network. [1]
- Look up destination IP address in a (routing) table to find a match, called the next hop router IP address.
- Send packet encapsulated in a LAN frame to the LAN address corresponding to the IP address of the next-hop router. [2]