5.3 Network software Tools

Question 1

Netstat command

Answer 1

Generates displays that show network status and protocol statistics
-tcp and UDP endpoints in table format
-routing table info
-interface info

Question 2

Route print command

Answer 2

(MS) Active routes by destination, network mask, gateway, interface, and metric

Question 3

NetFlow data

Answer 3

Used to perform monitoring, troubleshooting, inspection, interpretation, and synthesis of network traffic flow data.

Show ip cache flow
-displays NetFlow accounting statistics

Show ip flow-export
-more advanced accounting statistics than show ip cache flow
-includes main cache and all other enabled cache

Show mls NetFlow ip
-displays NetFlow ip entries

Question 4

Iperf command

Answer 4

Network performance utility that can generate tcp and UDP traffic to test bandwidth, latency, and packet loss

Question 5

Iptables (Linux)

Answer 5

Used to edit rules enforced by the Linux kernel firewall
-can change input, output, and forward chains that are firewall rulesets

Question 6

IPAM

Answer 6

IP address management
-Designed to scan DHCP and DNS servers and log IP address usage to a database.
-Can be used to manage and reconfigure DHCP and DNS servers remotely.

Question 7

Ip scanner

Answer 7

Used to monitor network’s IP address space in real-time and identify any devices connected.
-essentially sends ping to every IP and creates report of which give a response.