traceroute

const (
	// ErrCodeDNS indicates a DNS resolution failure.
	ErrCodeDNS ErrorCode = "DNS"
	// ErrCodeTimeout indicates the operation timed out.
	ErrCodeTimeout ErrorCode = "TIMEOUT"
	// ErrCodeConnRefused indicates the target actively refused the connection.
	ErrCodeConnRefused ErrorCode = "CONNREFUSED"
	// ErrCodeHostUnreach indicates the target host is unreachable.
	ErrCodeHostUnreach ErrorCode = "HOSTUNREACH"
	// ErrCodeNetUnreach indicates the target network is unreachable.
	ErrCodeNetUnreach ErrorCode = "NETUNREACH"
	// ErrCodeDenied indicates a permission error or unsupported configuration.
	ErrCodeDenied ErrorCode = "DENIED"
	// ErrCodeInvalidRequest indicates bad parameters from the caller.
	ErrCodeInvalidRequest ErrorCode = "INVALID_REQUEST"
	// ErrCodeFailedEncoding indicates a failure to encode the response.
	ErrCodeFailedEncoding ErrorCode = "FAILED_ENCODING"
	// ErrCodeUnknown is the catch-all for unclassified errors.
	ErrCodeUnknown ErrorCode = "UNKNOWN"
)

const (
	// ProtocolTCP is the TCP protocol.
	ProtocolTCP Protocol = "TCP"
	// ProtocolUDP is the UDP protocol.
	ProtocolUDP Protocol = "UDP"
	// ProtocolICMP is the ICMP protocol.
	ProtocolICMP Protocol = "ICMP"
)

const (
	// TCPConfigSYN means to only perform SYN traceroutes
	TCPConfigSYN TCPMethod = "syn"
	// TCPConfigSACK means to only perform SACK traceroutes
	TCPConfigSACK TCPMethod = "sack"
	// TCPConfigPreferSACK means to try SACK, and fall back to SYN if the remote doesn't support SACK
	TCPConfigPreferSACK TCPMethod = "prefer_sack"
	// TCPConfigSYNSocket means to use a SYN with TCP socket options to perform the traceroute (windows only)
	TCPConfigSYNSocket TCPMethod = "syn_socket"
)