The document contains questions about network access control lists (ACLs). Some key points:
- ACLs can be used to filter traffic by source/destination IP addresses, protocols, ports and more. Standard ACLs filter based on source IP, extended ACLs add destination IP and other criteria.
- The position and direction an ACL is applied impacts what traffic it filters. Inbound ACLs filter traffic as it enters an interface while outbound ACLs filter traffic exiting an interface.
- ACL rules are processed sequentially, with the first match determining if a packet is permitted or denied. Administrators must carefully craft rule orders and contents to implement desired security policies.
The document contains questions about network access control lists (ACLs). Some key points:
- ACLs can be used to filter traffic by source/destination IP addresses, protocols, ports and more. Standard ACLs filter based on source IP, extended ACLs add destination IP and other criteria.
- The position and direction an ACL is applied impacts what traffic it filters. Inbound ACLs filter traffic as it enters an interface while outbound ACLs filter traffic exiting an interface.
- ACL rules are processed sequentially, with the first match determining if a packet is permitted or denied. Administrators must carefully craft rule orders and contents to implement desired security policies.