traceroute

Print the route packets trace to network host.

Syntax

traceroute <host> [ipv6] [gateway STRING] [interface STRING] [first_ttl INTEGER] [max_ttl INTEGER] [port INTEGER] [nqueries INTEGER] [src_addr STRING] [tos INTEGER] [waittime INTEGER] [pausemsecs INTEGER] [packetlen INTEGER] [debug] [dontfragment] [icmp] [nomap] [bypass]

Parameters

host: The host that we wish to trace the route packets for.

ipv6: If a hostname is defined as the value of the 'host' parameter, use the hosts IPV6 address.

gateway: Tells traceroute to add an IP source routing option to the outgoing packet that tells the network to route the packet through the specified gateway.

interface: Specifies the interface through which traceroute should send packets. By default, the interface is selected according to the routing table.

first_ttl: Specifies with what TTL to start. (Minimum: 1, Default: 1)

max_ttl: Specifies the maximum number of hops (max time-to-live value) traceroute will probe. (Minimum: 1, Default: 30)

port: Specifies the destination port base traceroute will use (the destination port number will be incremented by each probe). A value of -1 specifies that no specific port will be used. (Minimum: -1, Default: -1)

nqueries: Sets the number of probe packets per hop. A value of -1 indicated. (Minimum: 1, Default: 3)

src_addr: Chooses an alternative source address. Note that you must select the address of one of the interfaces. By default, the address of the outgoing interface is used.

tos: For IPv4, set the Type of Service (ToS) and Precedence value. Useful values are 16 (low delay) and 8 (high throughput). Note that in order to use some TOS precedence values, you have to be super user. For IPv6, set the Traffic Control value. A value of -1 specifies that no value will be used. (Minimum: -1, Default: -1)

waittime: Determines how long to wait for a response to a probe. (Minimum: 1, Default: 5)

pausemsecs: Minimal time interval between probes. (Minimum: 0, Default: 0)

packetlen: Total size of the probing packet. Default 60 bytes for IPv4 and 80 for Ipv6. A value of -1 specifies that the default value will be used. (Minimum: -1, Default: -1)

debug: Enable socket level debugging.

dontfragment: Do not fragment probe packets.

icmp: Use ICMP ECHO for probes.

nomap: Do not try to map IP addresses to host names when displaying them.

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