Your host has IP address 172.16.1.1. Someone tries to send e-mail from a remote host with IP address 192.168.3.4. If successful, this will generate an SMTP dialogue, consisting of SMTP commands and mail, between the remote user and the SMTP server on your host. Assume that a user on your host tries to send packets for this scenario as shown: Scenario Direction Src Addr Dest Addr Protocol Dest Port Action 1 In 192.168.3.4 172.16.1.1 TCP 25 ? 2 Out 172.16.1.1 192.168.3.4 TCP 1234 ? Rule table: Rule Direction Src Addr Dest Addr Protocol Dest Port Action A In External Internal TCP 25 Permit B Out Internal External TCP > 1023 Permit C Out Internal External TCP 25 Permit D In External Internal TCP > 1023 Permit E Either Any Any Any Any Deny Indicate which packets are permitted or denied, and which rule is used in each case.

Q: What is the last valid host on the subnetwork that the node 192.166.6.66/26 belongs to?

A: In this question we have to understand about the last valid host on the subnetwork that the node…

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Q: How to answers above questions?

A: Refer the answer below for above asked questions:

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A: The above question is solved in step 2:-

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Q: Use a text editor to create Extended Access lists to accomplish the following tasks. Again no Packet…

A: Answer 1. access-list 150 permit tcp any(saurce) host 10.1.2.3 eq 80 access-list 150 permit tcp any…

Q: A classful source IP address of 166.157.6.221 sent a message to the 135th host on the same network.…

A: A classful source IP address of 166.157.6.221 sent a message to the 135th host on the same network.…

Network Protocols

A network protocol is a set of rules that govern how data is exchanged between the devices in a network. Network protocols enable communication between devices that are located in different parts of the world. Consequently, they are critical in today's digital communications.