Hping is a command-line based packet crafting tool. It can create packets using TCP, UDP, and ICMP. All of the header fields can be modified using the command line. A good understanding of ICMP, TCP, UDP and IP headers is required to use and understand this tool.

The following things can be done using hping:

• Firewall testing
• Network audits
• Advanced Trace-route
• Advanced port scanning and much more

 Usage:

• List options for hping3

Syntax:

hping3 –help

• List manual for hping3

Syntax:

man hping3

• hping as a port scanner: By specifying the TCP flags and port numbers you can do port scanning using hping. An open port is defined by a packet returned with SA, whereas closed ports by an RA packet.

Syntax:

hping3 -S 192.168.1.10 -p 80

• A nice feature is the “++”, which will increase the destination port in the packets by one. You can also press ‘ctrl+z’, instead of using ++, to increase the port number during the scan.

Syntax:

hping3 -S 192.168.1.10 -p ++79

• A spoofed scan of the server by the attacker

Syntax:

hping3 -a 192.168.1.19 -S 192.168.1.10 -p ++20

• SYN flood attack

Syntax:

hping3 -a 192.168.1.99 -S 192.168.1.10 -p 80 –flood

• UDP flood attack

Syntax:

hping3 –udp -S 192.168.1.10 -p 80 –flood

• ICMP flood attack

Syntax:

hping3 –icmp  -S 192.168.1.10 -p 80 –flood

• Random Source Attack

Syntax:

hping3 –rand-source  -S 192.168.1.0

• Change TTL of packet

Syntax:

  hping3 –ttl {value} -S {destination ip}

• Limit Packet count

Syntax:

hping3 –count {no. of packet} -S {destination ip}

• Scan Mode:

Syntax:

hping3 –scan 1-100 -S {target Ip}

• Set Packet Flag

Syntax:

Set FIN flag

hping3 –fin -S {target ip}

Set SYN Flag

hping3 –syn -S {target ip}

Set RST flag

hping3 –rst -S {target ip}

Set PUSH flag

hping3 –push -S {target ip}

Set ACK flag

hping3 –ack -S {target ip}

Set URG flag

hping3 –urg -S {target ip}

• Trace-route

Syntax:

hping3 –traceroute -S {target ip}

• Verbose Mode:

Syntax:

hping3 -V -S {target ip}

 

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