4 1)DCCP socket to reserve source port and choose source address. Note that this
5 requires host machine to support DCCP.
6 2)Reverse DNS lookups (and -n switch to disable)
7 3)Detailed Error Messages
8 4)DCCP Service Code can be specified from commandline (-s switch)
9 5)Much improved statistics
14 Initial Public Release
16 1)Sends DCCP Request packets to IPv4 or IPv6 hosts to elicit
17 responses or ICMP messages.
18 2)TTL, destination port, and Source address of the requests are configurable.
19 3)Attempts to autodetect a correct source address if none is specified.