Parameter

Comment

Protocols

protocol N

Used to specify the communication protocol to be use, by following the keyword with the required numeric value N (e.g. For TCP - "protocol 6")

ICMP

Internet Control Message Protocol

IGMP

Internet Group Management Protocol

GGP

Gateway-to-Gateway Protocol

TCP (default)

Transmission Control Protocol

PUP

Xerox PUP

UDP

User Datagram Protocol

IDP

XEROX NS IDP

Ports

port N

Used to specify the communication port to be accessed, by following the keyword with the required numeric value N (e.g. For FTP - "port 21")

ECHO

Echo Protocol

DISCARD

Discard Protocol

SYSTAT

Active Users

DAYTIME

Daytime Protocol

NETSTAT

network statistics service

FTP

File Transfer Protocol

TELNET (default)

Interactive text-oriented communication facility

SMTP

Simple Mail Transfer Protocol

TIMESERVER

TIME protocol

NAMESERVER

ARPA Host Name Server Protocol

WHOIS

WHOIS protocol

MTP

any private terminal access

TFTP

Trivial File Transfer Protocol

RJE

Remote Job Entry

FINGER

Finger user information protocol

TTYLINK

Terminal Link

SUPDUP

Application layer terminal display protocol

EXECSERVER

Remote Process Execution

CMDSERVER

port for command services

I/O Buffers

inbufsize N

N = 1024 (default)

outbufsize N

N = 128 (default)