Subnet 192.168.1.64/27 will no longer be reachable from Piglet. Subnets 10.4.6.0/24 and 10.4.7.0/24 are also no longer reachable from Piglet.
2
Mistakes occur in the following:
RTA, the second entry, should be ip route 172.20.80.0 255.255.240.0 172.20.20.1
RTB, the third entry, should be ip route 172.20.208.0 255.255.240.0 172.20.16.50
RTC, the second entry, should be ip route 172.20.208.0 255.255.240.0 172.20.16.50 and fifth entry, should be ip route 172.20.80.0 255.255.240.0 172.20.20.1
3
The mistakes are as follows:
RTC: The route to 10.5.8.0/24 points to the wrong next-hop address.
RTC: The route to 10.1.1.0/24 should be 10.5.1.0/24. (There is no 10.1.1.0/24 in the network.)
RTC: There is no route to 10.5.4.0/24.
RTD: The route to 10.4.5.0/24 should be 10.5.4.0/24.
