R2511-HP MSR Router Series Terminal Access Configuration Guide(V5)

Configuring IP terminal access

This chapter describes how IP terminal access operates and how to configure IP terminal access.

Overview

IP terminal access allows a terminal to access a remote Unix or Linux server, which is also known as a

front-end processor (FEP), through a router. The router acts as the initiator to forward data between the

terminal and the Unix or Linux server that serves as the receiver. Services running on the Unix or Linux

server use the ETelnet server, ttyd, or sshd program to send service interfaces to the terminal through the

router. IP terminal access identifies a terminal using its IP address and offers a series of functions, such as

data encryption, screen saving, and terminal locking.

Figure 14 sho

ws a typical IP terminal access application scenario.

Figure 14 Typical application of IP terminal access

In the figure, the initiator, which is enabled with IP terminal access, initiates a TCP connection to the

receiver for the terminal in a bank outlet to access the FEP in the bank branch over an IP network.

Banking services run on the FEP. Information entered into the terminal by an employee at the bank outlet

is sent to the FEP through the initiator. The FEP then returns the corresponding service interface to the

service terminal though the initiator, thereby implementing data exchange between the outlet and the

branch.

IP terminal access features

In Figure 15, a router connects to IP terminals through Ethernet interfaces, and connects to FEPs over an

IP network. The following sections describe IP terminal access features.