Attribute

Function

-f

Set the initial time-to-live used in the first outgoing probe packet.

-F

Set the "don't fragment" bit.

-d

Enable socket level debugging.

-g

Specify a loose source route gateway.

-i

Specify a network interface to obtain the source IP address for outgoing probe packets.

-I

Use the ICMP ECHO instead of UDP datagrams.

-m

Set the max time-to-live (max number of hops) used in outgoing probe packets.

-n

Print hop address numerically rather than symbolically.

-p

Set the base UDP port number used in probes. (Default is 33434.)

-r

Bypass the normal routing tables and send directly to a host on an attached network.

-s

Use the following IP address (which usually is given as an IP number) as the source address in outgoing probe packets.

-t

Set the type of service in probe packets to the following value.

-v

List the ICMP packets other than TIME_EXCEEDED and UNREACHABLE.

-w

Set the time (in seconds) to wait for a response to a probe.

-x

Toggle checksums.