Please respond by e-mail:
We are considering implementing a connection to the Internet. We are looking at the following,
1. At the router from the Internet (going towards the Intranet) put a firewall like Sun's
2. Put a packet filtering router in between the firewall to the Internet and intranet
3. Have a Application Firewall like ANS protecting the intranet
Internet --> SunScreen --> Packet Filter --> ANS --> intranet
Does the same company that makes Firewall 1 create the SunScreen software?
Has anybody tried the above configuration with success?
Has anybody routed SMTP on a different port using the above scenario?
Is it a good idea to place NNTP and SMTP servers on the Internet and have the firewall verify the
address of the server as part of the security check-in?
Any help is greatly appreciated.