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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 Fa0/0 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:

  • Whenever you are asked to answer a question that doesn’t require configuration, type the answer in a notepad window and keep it until the lab assistant checks that task.
  1. [2p] Ensure connectivity between all devices using the addressing scheme printed above. Use static routes or a routing protocol (not recommended…).
    • If you decide to use a routing protocol, make sure all your future access lists will allow the routing protocol’s traffic.
  2. [+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:
    1. Muttley is on the INSIDE zone
    2. Pluto is on the OUTSIDE zone
  3. [+4p=9p] Create a ZPF configuration on Muttley while considering the following requirements:
    1. The inside interface will be Muttley’s connection to Spike
    2. The outside interface wll be Muttley’s connection to Scooby.
    3. All telnet traffic from the Muttley-Spike network to any outside destination is to be inspected.
    4. To check yourself, use the „show policy-map type inspect zone-pair sessions” command.
  4. [+2p=11p] Add to the above ZPF configuration of the Muttley router the necessary commands to pass all ping connections through the firewall.
cns/laboratoare/laborator-06.1353939659.txt.gz · Last modified: 2012/11/26 16:20 by traian.popeea
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