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Rule Direction Source Destination Protocol Destination Action Address Address port A In External Internal TCP 80 Permit B Out Internal External TCP >1023 Permit
Rule Direction Source Destination Protocol Destination Action Address Address port A In External Internal TCP 80 Permit B Out Internal External TCP >1023 Permit C Out Internal External TCP 80 Permit D In External Internal TCP >1023 Permit E Either Any Any Any Any Deny Packet Direction 1 In 2 Out 3 Out 4 In Source Address 192.168.20.40 129.205.10.125 TCP 129.205.10.125 192.168.20.40 TCP 129.205.10.125 192.168.20.40 TCP 192.168.20.40 129.205.10.125 TCP Destination Protocol Destination Action Address port 80 ? 1234 ? 80 ? 880 ? Packet Direction Source Address Destination Protocol Destination Action Address port 5 In 123.10.25.33 172.16.38.60 TCP 8080 ? 6 Out 172.16.38.60 123.10.25.33 TCP 3650 ?
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Computer Networking A Top-Down Approach
Authors: James Kurose, Keith Ross
7th edition
978-0133594140
