For the last task I am wondering why the overload keyword is used. The task doesn't seem to ask for it and from my testing it isn't required to meet the requirements. I have provided the show translations that shows there isn't a simple NAT entry without the overload command.
---Example config----
"ip nat source route-map ACL150_RMAP pool ACL150_POOL overload"---My Cconfig---
R1#show ip nat nvi translations
Pro Source global Source local Destin local Destin global
tcp 136.1.128.153:56674 136.1.27.3:56674 150.1.9.9:23 150.1.9.9:23
--- 136.1.128.3 150.1.3.3 --- ---
R1#show run | sec ip nat
ip nat enable
ip nat enable
ip nat enable
ip nat pool VLAN27_TRAN 136.1.128.150 136.1.128.155 prefix-length 24
ip nat source list VLAN99 interface Loopback0 overload
ip nat source route-map VLAN27 pool VLAN27_TRAN
ip nat source static 150.1.3.3 136.1.128.3
R1#show run | sec route-map
ip nat source route-map VLAN27 pool VLAN27_TRAN
route-map VLAN27 permit 10
match ip address VLAN27
R1#show ruN | sec ip access-list
ip access-list standard VLAN27
permit 136.1.27.0 0.0.0.255
ip access-list standard VLAN99
permit 136.1.99.0 0.0.0.255