Extended Ping

Router 0 on the Left extended ping source interface
is varied.

Router#ping
Protocol [ip]: ip
Target IP address: 192.168.3.2
Repeat count [5]: 5
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: gigabitethernet0/1
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.3.2, timeout is 2 seconds:
Packet sent with a source address of 192.168.4.1
.....
Success rate is 0 percent (0/5)


Above did not work as g0/1 is not part of the OSPF  process.

Router#ping
Protocol [ip]: ip
Target IP address: 192.168.3.2
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface:
Type of service [0]:
Router#ping
Protocol [ip]:
Target IP address: 192.168.3.2
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: gigabitethernet0/0
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.3.2, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.1
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/12/12 ms

Above worked as interface g0/0 is part of OSPF.


Extended Ping can be used to verify if subnets are part of the present 
routing protocol amongst other things.Each Router interface is a different subnet.Extended Ping  gives an option to Ping from different Interfaces,
IP's.