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System Administration Guide: Network Services     Oracle Solaris 11 Express 11/10
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Document Information


Part I Network Services Topics

1.  Network Service (Overview)

2.  Managing Web Cache Servers

3.  Time-Related Services

Part II Accessing Network File Systems Topics

4.  Managing Network File Systems (Overview)

5.  Network File System Administration (Tasks)

6.  Accessing Network File Systems (Reference)

Part III SLP Topics

7.  SLP (Overview)

8.  Planning and Enabling SLP (Tasks)

9.  Administering SLP (Tasks)

10.  Incorporating Legacy Services

11.  SLP (Reference)

Part IV Mail Services Topics

12.  Mail Services (Overview)

13.  Mail Services (Tasks)

14.  Mail Services (Reference)

Part V Serial Networking Topics

15.  Solaris PPP 4.0 (Overview)

16.  Planning for the PPP Link (Tasks)

17.  Setting Up a Dial-up PPP Link (Tasks)

18.  Setting Up a Leased-Line PPP Link (Tasks)

19.  Setting Up PPP Authentication (Tasks)

20.  Setting Up a PPPoE Tunnel (Tasks)

21.  Fixing Common PPP Problems (Tasks)

22.  Solaris PPP 4.0 (Reference)

Using PPP Options in Files and on the Command Line

Where to Define PPP Options

How PPP Options Are Processed

How PPP Configuration File Privileges Work

User Privileges

File Privileges

Effects of Option Privileges

/etc/ppp/options Configuration File

/etc/ppp/options.tmpl Template

Where to Find Examples of the /etc/ppp/options Files

/etc/ppp/options.ttyname Configuration File

Using /etc/ppp/options.ttyname on a Dial-in Server

Using /etc/ppp/options.ttyname on a Dial-out Machine

options.ttya.tmpl Template File

Where to Find Examples of the /etc/ppp/options.ttyname Files

Configuring User-Specific Options

Configuring $HOME/.ppprc on a Dial-in Server

Configuring $HOME/.ppprc on a Dial-out Machine

Specifying Information for Communicating With the Dial-in Server

/etc/ppp/peers/peer-name File

/etc/ppp/peers/myisp.tmpl Template File

Where to Find Examples of the /etc/ppp/peers/peer-name Files

Configuring Modem Speed for a Dial-up Link

Defining the Conversation on the Dial-up Link

Contents of the Chat Script

Chat Script Examples

Basic Modem Chat Script

/etc/ppp/myisp-chat.tmpl Chat Script Template

Modem Chat Script for Calling an ISP

Basic Chat Script Enhanced for a UNIX-Style Login

Chat Script for External ISDN TA

For More Chat Script Examples

Invoking the Chat Script

How to Invoke a Chat Script (Task)

Creating a Chat File That Is Executable

How to Create an Executable Chat Program

Authenticating Callers on a Link

Password Authentication Protocol (PAP)

/etc/ppp/pap-secrets File

Creating PAP Passwords

What Happens During PAP Authentication

Using the login Option With /etc/ppp/pap-secrets

Challenge-Handshake Authentication Protocol (CHAP)

/etc/ppp/chap-secrets File

What Happens During CHAP Authentication

Creating an IP Addressing Scheme for Callers

Assigning Dynamic IP Addresses to Callers

Assigning Static IP Addresses to Callers

Assigning IP Addresses by sppp Unit Number

Creating PPPoE Tunnels for DSL Support

Files for Configuring Interfaces for PPPoE

/etc/ppp/pppoe.if File

/usr/sbin/sppptun Command

Examples of sppptun Commands for Administering Interfaces

PPPoE Access Server Commands and Files

/usr/lib/inet/pppoed Daemon

/etc/ppp/pppoe File

/etc/ppp/pppoe.device File Plugin

Using PPPoE and PPP Files to Configure an Access Server

PPPoE Client Commands and Files

/usr/lib/inet/pppoec Utility Shared Object

/etc/ppp/peers/peer-name File for Defining an Access Server Peer

23.  Migrating From Asynchronous Solaris PPP to Solaris PPP 4.0 (Tasks)

24.  UUCP (Overview)

25.  Administering UUCP (Tasks)

26.  UUCP (Reference)

Part VI Working With Remote Systems Topics

27.  Working With Remote Systems (Overview)

28.  Administering the FTP Server (Tasks)

29.  Accessing Remote Systems (Tasks)

Part VII Monitoring Network Services Topics

30.  Monitoring Network Performance (Tasks)



Creating an IP Addressing Scheme for Callers

Consider creating one or more IP addresses for all incoming calls instead of assigning a unique IP address to each remote user. Dedicated IP addresses are particularly important if the number of potential callers exceeds the number of serial ports and modems on the dial-in server. You can implement a number of different scenarios, depending on your site's needs. Moreover, the scenarios are not mutually exclusive.

Assigning Dynamic IP Addresses to Callers

Dynamic addressing involves the assignment to each caller of the IP address that is defined in /etc/ppp/options.ttyname. Dynamic addressing occurs on a per-serial port basis. When a call arrives over a serial line, the caller receives the IP address in the /etc/ppp/options.ttyname file for the call's serial interface.

For example, suppose a dial-in server has four serial interfaces that provide dial-up service to incoming calls:

With the previous addressing scheme, an incoming call on serial interface /dev/term/c is given the IP address for the duration of the call. After the first caller hangs up, a later call that comes in over serial interface /dev/term/c is also given the IP address

The advantages of dynamic addressing include the following:

Assigning Static IP Addresses to Callers

If your site implements PPP authentication, you can assign specific, static IP addresses to individual callers. In this scenario, every time a dial-out machine calls the dial-in server, the caller receives the same IP address.

You implement static addresses in either the pap-secrets or chap-secrets database. Here is a example of an /etc/ppp/pap-secrets file that defines static IP addresses.

joe    myserver  joepasswd
sally  myserver  sallypasswd
sue    myserver  suepasswd

joe, sally, and sue are the names of the authorized callers.


myserver indicates the name of the server.


joepasswd, sallypasswd, and suepasswd indicate the passwords for each caller.

IP Addresses and and are the IP addresses assigned to each caller.

Here is a example of an /etc/ppp/chap-secrets file that defines static IP addresses.

account1 myserver secret5748
account2 myserver secret91011

account1 and account2 indicate the names of the callers.


myserver indicates the name of the server for each caller.


secret5748 and secret91011 indicates the CHAP secret for each caller.

IP Addresses and are the IP addresses for each caller.

Assigning IP Addresses by sppp Unit Number

If you are using either PAP or CHAP authentication, you can assign IP addresses to callers by the sppp unit number. The following shows an example of this usage.

myclient ISP-server mypassword

The plus sign (+) indicates that the unit number is added to the IP address. Note the following: