Question: Suppose filtering routers are arranged as in Figure 8.22; the primary firewall is R1. Explain how to configure R1 and R2 so that outsiders can

Suppose filtering routers are arranged as in Figure 8.22; the primary firewall is R1. Explain how to configure R1 and R2 so that outsiders can Telnet to net 2 but not to hosts on net 1. To avoid “leapfrogging”

break-ins to net 1, also disallow Telnet connections from net 2 to net 1.

Figure 8.22)

Outside world R1 net 1 R2 net 2

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To configure the routers R1 and R2 in the diagram to meet the requirements described we need to establish access control lists ACLs that permit and de... View full answer

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