TCP/IP Utilities

TCP/IP Utilities

it is used to troubleshoot and to maintain a Network without any Problems

• PING (Packet Internet Gopher)

  Ping is used to find the connected device is alive are not. Ping uses a special protocol called ICMP (Internet Control Message Protocol)

  We can check it for Connected devices, websites, DNS, DHCP and Print server etc

• Tracert

It is similar to Ping, it identifies the path through which the packets is going to reach the Destination.

• ARP (Address Resolution Protocol)

It will resolves IP address to MAC address. Every  ARP request is a Broadcast, and ARP reply is a Unicast.

• NS Lookup

For diagnosing the DNS problems. it  will shows the defined DNS server and to resolve there hostnames of other devices in the network.

• IPConfig \ IPconfig /all

           To know the IP address of a windows device we will use this command. we can also know the all defined things like subnet, default gateway, DNS server etc

              in Window machine  ipconfig

              in Linux machine      ifconfig 

• Net stat (Network Statistics)

It displayes network connections (both incoming and outgoing), routing tables and a no:of network interface statistics.

it is an helpfull tool in finding problems and determining the amount of traffic on the network as a performance measurement.

               netstat -s       Provides statics about incoming and outgoing traffic.

               netstat -o      To see the active TCP connections.

• Nbt stat (Net Bios over TCP/IP)

It helps you to check inf about Net BIOS names. it helps us view the Net BIOS name cache

      EX: nbtstat -n