I wonder if in Configuration Exercise 5 of Chapter 5 (RIP) RTB can route packets correctly.
For example, a packet with IP destination address 192.168.20.152, the last byte is 10011000,
has the first 5 bits of the last byte 10011. In RTB's route table we have:
c 192.168.20.32 (last byte 00100000)
c 192.168.20.48 (last byte 00110000)
c 192.168.20.40 (last byte 00101000)
r 192.168.20.128 (last byte 10000000)
r 192.168.20.64 (last byte 01000000)
and, after matching the major class, we have not the match with the subnet (/29 in RTB).
The author wrote that in this case the packet is discarded but in the solution it seems ok.
Thanks for an answer.