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Stewert Lab# 3

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CSS200-1402B-02 : Principles of Network Security

Johnny Adams Cheryl Garvin 05/26/2014

ARP:This is an address resolution resolution Protocol. This for mapping an IP address to another computer connected to a local network or LAN. Each computer has a unique address called a MAC the ARP converts the IP address to the MAC address. ensuring each has a unique network identification. ICMP: internet control message protocol :Used by routers to indicate non connection or service non available.

172.30.0.8

172.30.0.2 and 172.30.0.8 both sent received and responded .

YES 4 packets

To send receive and confirm

TCP (SYN) Seq= 0 TCP (ACK) seq= 1

NO! Masked to prevent security leak.

Netwittness was easier to see and a general information presentation. WireShark is detailed information presentation.

CSS200-1402B-02 : Principles of Network Security

Johnny Adams Cheryl Garvin 05/26/2014

172.30.0.1 Port 23 is using a telnet, Port 22 is using ssh, port 23 telenet and Port 22 SSh.

The proper employees authorized, use it to make the network and other people more secure. .The network IT security team uses nmap to recognize IP addresses that show up in the reports including in nettrace analysis. They also scan internal network for open ports that may have an infestation of spy ware. The hackers use it to do reconnaissance, which it can tell them what ports open, and weaknesses and the times they are generally open.

T4 -A Turn on OS and version detection scanning script (IPv4) -v verbosity options, you can gain information about the remote operating system -PE Standard ICMP Echo Request -PS send SYN packets instead of ACK packets for your TCP Ping

A - Turn on OS and version detection scanning script (IPv4) -v verbosity options, you can gain information about the remote operating system -PE Standard ICMP Echo Request -PS send SYN packets instead of ACK packets for your TCP Ping

4 each

172.30.0.4 172.30.0.9 172.30.0.200 172.30.0.8…...

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