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What is an alternative configuration if proxy ARP cannot be used on your Security Gateway?

You want to implement Static Destination NAT in order to provide external, Internet users access to
an internal Web Server that has a reserved (RFC 1918) IP address. You have an unusedvalid IP
address on the network between your Security Gateway and ISP router. You control the router that
sits between the firewall external interface and the Internet.
What is an alternative configuration if proxy ARP cannot be used on your Security Gateway?

Which of the following configurations will allow this network to access the Internet?

Your main internal network 10.10.10.0/24 allows all traffic to the Internet using Hide NAT. You also
have a small network 10.10.20.0/24 behind the internal router. You want to configure the kernel to
translate the source address only when network 10.10.20.0 tries to access theInternet for HTTP,
SMTP, and FTP services. Which of the following configurations will allow this network to access the
Internet?

What is the best configuration for 10.10.10.x users to access the DMZ servers, using the DMZ servers’ public

You have three servers located in a DMZ, using private IP addresses. You want internal users from
10.10.10.x to access the DMZ servers by public IP addresses. Internal_net 10.10.10.x is configured
for Hide NAT behind the Security Gateway’s external interface.

What is the best configuration for 10.10.10.x users to access the DMZ servers, using the DMZ
servers’ public IP addresses?


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