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Lab 6 - CBAC and ZPF
Topology
Interfaces
Device | Interface | IP Address | Subnet Mask |
Pluto | Lo0 | 110.0.0.1 | 255.255.255.0 |
Pluto | Fa0/0 | 10.1.0.1 | 255.255.255.252 |
Scooby | Fa0/0 | 10.1.0.2 | 255.255.255.252 |
Scooby | Fa1/0 | 10.2.0.2 | 255.255.255.252 |
Muttley | Fa1/0 | 10.2.0.1 | 255.255.255.252 |
Muttley | Fa1/0 | 10.3.0.1 | 255.255.255.252 |
Spiuke | Fa0/0 | 10.3.0.2 | 255.255.255.252 |
Tasks
Open the Lab6_CNS_Topology.net file.
Important! Writing answers:
[2p] Ensure connectivity between all devices using the addressing scheme printed above. Use static routes or a routing protocol (not recommended…).
[+3p=5p] Configure CBAC to inspect all TCP, UDP and ICMP traffic on Scooby’s FastEthernet1/0 interface. Use „show ip inspect sessions” to view an active Telnet session between Muttley and Pluto’s loopback0 interface. Make sure you don’t allow Pluto to connect to Muttley. From a firewall point of view:
Muttley is on the INSIDE zone
Pluto is on the OUTSIDE zone
[+4p=9p] Create a ZPF configuration on Muttley while considering the following requirements:
The inside interface will be Muttley’s connection to Spike
The outside interface wll be Muttley’s connection to Scooby.
All telnet traffic from the Muttley-Spike network to any outside destination is to be inspected.
To check yourself, use the „show policy-map type inspect zone-pair sessions” command.
[+2p=11p] Add to the above ZPF configuration of the Muttley router the necessary commands to pass all ping connections through the firewall.