Router Simulation Essay Example

Router Simulation Essay Assignment 2: Network protocols numbers 1. What organization has been given the responsibility for assigning protocol numbers? ICANN – The Internet Corporation for Assigned Names and Numbers 2. Determine the protocol numbers for the protocol names: Protocol| Number| IPv4| 4| IPv6| 41| TCP| 6| UDP| 17| ICMP| 1| VRRP| 112| IPSEC ESP| 50| L2TP| 115| OSPF| 89| EIGRP| 88| 3. Determine the correct ICMP type based on the description provided: ICMP Message Description| Type| Code*| Echo| 8| | Echo Reply| 0| | Time Exceeded| 11| 0| Port Unreachable| 3| 3| Fragmentation Needed| 3| 4| 4. What are the valid ranges of protocol numbers? 0-65535 5. What protocol number(s) is/are specified for experimentation and testing? 253 and 254 6. What organization has been given the responsibility for assigning port numbers, sometimes referred to as â€Å"Well Known Ports or Registered Ports†? IANA 7. Determine the protocol numbers for the protocol names: Port| Application / Protocol| TCP -23| telnet| TCP -443| HTTPS| UDP -53| Domain name system| UDP -123| Network time protocol| TCP -110| Post office protocol v3| TCP -25| Simple mail transfer protocol| TCP -80| HTTP| UDP -88| kerberos| TCP -22| SSH| UDP -161| Simple network management| 8. What numeric range is commonly referred to as the â€Å"well-known ports†? 0 to 1024 9. What numeric port range is commonly used by clients in a client -gt; server communication session? 0 to 1023 10. What do you believe would be the result of installing and configuring a web server to â€Å"listen† on ports other than 80 and 443? 8080 We will write a custom essay sample on Router Simulation specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Router Simulation specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Router Simulation specifically for you FOR ONLY $16.38 $13.9/page Hire Writer 1. http://www. icann. org/en/about/learning/glossary 2. http://www. iana. org/assignments/protocol-numbers/protocol-numbers. xhtml 3. http://www. nthelp. com/icmp. html 4. http://www. tcpipguide. com/free/t_TCPIPApplicationAssignmentsandServerPortNumberRang-2. htm 5. http://www. networksorcery. com/enp/protocol/ip. htm 6. http://technet. microsoft. com/en-us/library/cc959828. aspx 7. https://en. wikipedia. org/wiki/List_of_TCP_and_UDP_port_numbers#External_links 8. http://www. webopedia. com/quick_ref/portnumbers. asp