Topology
Instructions
Connect three routers together with Serial or Ethernet connections. We are using RIP for convenience, although it isn’t tested in the exam:
- Configure the connections between the routers and ping
- Add Loopback addresses to the three routers, as per the diagram
- Put 172.16.1.0/30 and 10.1.1.0/20 and both 192 networks into RIPv2
- Add a static route on the two spoke routers for network 192.168.20.0/24 to go to the hub
- Configure a NAT pool on the hub router for network 172.20.1.0/29 to perform NAT to pool 192.168.20.0/24
- Check to ensure that all RIP routes are in the routing table with their correct networks
- Source a ping from 172.20.1.1 to the Loopback addresses on the spoke routers; turn on a NAT debug first and check the NAT table afterwards
Solution Hints and Commands
- router rip
no auto
ver 2
network x.x.x.x
- Static route: ip route command
- ip nat pool <name> <start_ip> <end_ip> netmask <mask> command
- ip nat inside source list x pool <name> command
- show ip route command to check the networks in the routing table
- debug ip nat [detailed] command