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1. Allow all communication EXCEPT that using the TELNET protocol

1. Allow all communication EXCEPT that using the TELNET protocol

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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How to configure a firewall placed between a corporate LAN and the Internet based on the following situations. 1. Allow all communication EXCEPT that using the TELNET protocol Block all (inbound/outbound) inbound and _(inbound/outbound) outbound traffic on port number Block service. 2. Allow all SMTP communication initiated from within the LAN but block all FTP communication initiated from outside the LAN Block all (inbound/outbound) outbound and _(inbound/outbound) outbound traffic if source IP is _(internal/external) internal IP, destination IP is (internal/external) external IP, and destination port is FTP Block FTP service when the external source is the client. 3. Block any machine on the Internet from initiating a TCP connection to a machine on the corporate LAN Use a (stateful/stateless) stateless packet-filter proxy and set the security policy to (allow/block) block new connection where the source is (internal/external) and the destination is (internal/external) Block (inbound/outbound) traffic if no matching (inbound/outbound) traffic previously for this application and IP.
Transcribed Image Text:How to configure a firewall placed between a corporate LAN and the Internet based on the following situations. 1. Allow all communication EXCEPT that using the TELNET protocol Block all (inbound/outbound) inbound and _(inbound/outbound) outbound traffic on port number Block service. 2. Allow all SMTP communication initiated from within the LAN but block all FTP communication initiated from outside the LAN Block all (inbound/outbound) outbound and _(inbound/outbound) outbound traffic if source IP is _(internal/external) internal IP, destination IP is (internal/external) external IP, and destination port is FTP Block FTP service when the external source is the client. 3. Block any machine on the Internet from initiating a TCP connection to a machine on the corporate LAN Use a (stateful/stateless) stateless packet-filter proxy and set the security policy to (allow/block) block new connection where the source is (internal/external) and the destination is (internal/external) Block (inbound/outbound) traffic if no matching (inbound/outbound) traffic previously for this application and IP.
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