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NETServer/8, NETServer/16 manual Basic Installation
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NETServer/16
NETServer/8
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Troubleshooting
Specification
Install
Error codes
Warranty
IP Configuration
Connecting to the NETServer
DNS Cache Reset Time-out
How to Setup Applications
Accessing the Command Line
Page 30
Image 30
2-14
Basic Installation
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Contents
NETServer/8 NETServer/16
Page
Table of Contents
Network Dial-in Access
Administrative Tools
Reference Section
Warranty and Service
Limited Warranty
Service and Support
Technical Support
Vii
We welcome your suggestions for better documentation
Viii
Additional Software Enhancements
Chapter Overview
What’s New with Release 3.1?
Overview
Accounting Servers
Netmask Table
IP Address Spoofing
Accounting Server Support
Radius Accounting and ANI/DNIS
Multiple Name Servers
Randomized Hosts
Icmp Message Logging
New Modem Port Features
NETServer Overview
IP Modem Sharing
How do I get there from here?
Administrative Utilities
Security
Chapter Basic Installation
System Administrator Requirements
Basic Installation
TCP/IP Reference Material
Accessing the Command Line
Getting Started
Getting the LAN port up and running
First step for IPX or IP/IPX networks
Basic Installation
IP Configuration
You must also set the Broadcast Address. Type the following
IPX Configuration
Ethernet802.3 ethernet802.2 ethernet802.2II ethernetII
Final Steps
Recommended Global Configuration
Password
IP and IPX Default Gateways
To set the IP gateway, type the following
Name Service
Save your work
Basic Installation
Chapter Configuration Overview
How to Setup Applications
Configuration Overview
Where do I go from here?
Application Section
You can abbreviate commands
Command Line
Commands are not case sensitive
Separate a parameter and its value by a space
How to log out of the command line
Reset any ports you have changed
Reboot when necessary
Save your changes
Quick Command Overview
Overview of configurable tables
Global Configuration
Hosts Table
Location Table
Initialization Script Configuration
Net0 LAN Port Configuration
Netmasks Table
Packet Filter Table
Port Configuration
Port Type
Snmp Configuration
Routes Table
User Table
Configuration Overview
Chapter IP Terminal Server Setup
Terminal or Workstation Setup
IP Terminal Server Setup
NETServer Terminal Server Setup Overview
Port Default
Global Default
User Table
Set the port type to User Login
Terminal Server Detailed Setup
Configuring a Port
Set the port’s security Pass-Thru Login
Create default user settings for the port
Port Default Login Service
Optional Friendly Stuff
Save sport #
Configure the user
Adding a Remote User to the User Table
Add the user to the User Table
Login Service
Configure for dialback use?
IP Terminal Server Case Studies
Example
NETServer will use ports 6, 7, and 8 for this application
Save your work and reset all the ports
Example
IP Terminal Server Setup
Chapter Network Dial In Access
Dial-in User Setup
Network Dial In Access
NETServer Setup for Network Dial-In Overview
Prework
Configuration
NETServer Dial-In Detailed Setup
Dialback Users on this Port?
Save the changes to flash memory
Create a new user
Normal or dialback user?
Add configuration information for the user
This is the user’s IP subnet mask. Use the following command
Option can be any one of the following
IP Remote Access Case Study
Configure the ports
Create user table entries for the dial in users
Create a user table entry for the dialback user
Save your work and reset the ports
Connecting to the NETServer
IPX Remote Access
Create User Table entries for the dial in users
Setup for NETServer Routing Overview
Chapter LAN-to-LAN Routing
LAN-to-LAN Routing
IPX routing
LAN-to-LAN Routing
An Introduction to NETServer Routing
NETServer Routing
LAN-to-LAN Routing
Static vs. Dynamic Routes
How RIP Dynamically Builds the Routing Table
How Packets are Routed
Establishing Connections to Remote Gateways
Routing Procedure
PAP/CHAP Authentication
PAP Password Authentication Protocol
Chap Setup for the NETServer
Chap Challenge Example
LAN-to-LAN Routing Detailed Setup
Configuring the Port
Creating a Dial-Out Group
Adding a Remote Device to the Location Table
Create a new location table entry
Set Required Location Parameters
This is the remote device’s IP address
Set location location name netmask netmask
Dial Group Number
Multiple lines for a single connection
Maximum Ports
Create a Dial Script
Set location Chicago script 1 atds slot#\r Connect
Adding the Remote Device to the User Table
Create a User Table Entry
Tell the NETServer about the Remote Device
Set user user name protocol ppp slip
Set netuser user name compression on off
LAN-to-LAN Routing Case Study
Setting Up NETServer a
Add netuser nsb password xyzabc
Setting Up NETServer B
Now, save your work and reset the ports
Testing the Connection
Connecting to NETServer a from NETServer B
What If I Don’t Want to Use Chap Authentication?
TCP/IP Modem Sharing
Configure the port as a host device
Chapter Talking to the Modems
Assign the modem a TCP port number
Save your work and reset the port
Turn modem control carrier detect off
Implementing Security with Host Device Dial Out
Configuring modems as Unix pseudo TTYs
Talking to the Modems
Add a New Initialization Script
Modem Initialization Scripts
How To
Assign Text to an Initialization Script
Use an Existing Initialization Script
Delete an Initialization Script
Displaying an Initialization Script
Default initialization string
Initialization Script Example
Sending AT commands to the modems
Talking to the Modems
Chapter Packet Filters
Packet Filters
Packet Filters
Types of Filters
Packet Filters and the NETServer
Input filters vs. Output filters
Information Sources
Adding Packet Filters
Input filters vs. Output filters
Filter Rule Format
Rule Type
Name
Rule Number
Permit or Deny
Options
TCP/IP packet filtering
Destination Address
TCP and UDP parameters
Standard Port Numbers
TCP UDP
Filtering RIP messages
FTP Packet Filtering
Client opens a control channel
FTP Example
Filtering Icmp packets
Type Description
IPX packet filtering
IPX Rules
Dsthost
SAP Rule Options
Delete a Packet Filter Rule
Editing Packet Filters
Edit a Packet Filter
Delete a Packet Filter
View a Packet Filter
View the Packet Filter Table
Changing the command prompt
Chapter Administrative Tools
Configuring the !root account
Root Access
Telnet Access Port
Manually Connecting to a Remote Site
Dial Command
Nslogin, Rlogin and Telnet Commands
Troubleshooting Commands
Viewing Debug messages
Turn off the output console by typing the following
Ifconfig
MTU
Ping
Ptrace
Traceroute
Version
Show command
Show
Show arp
Show flash
Show memory
Show netconns
Show netstat
Show sap
Show sessions
Administrative Tools
Chapter Command Reference
Global Configuration
Command Reference
View the Global Configuration Table
Get help
Save Changes
Assigned Address
Default Host
Global user parameters
Connect Message
Randomize Hosts
Default Gateways
Global routing parameters
Default Route
IP Address Spoofing
Proxy ARP
NetBIOS Packet Propagation
PAP Authentication
System Name
Name Service
Service
Server name
DNS Cache Reset Time-out
Domain name
Alternate Radius Server
Radius security
Primary Radius Server
Radius Secret
Radius Accounting
Syslog Accounting
Icmp Logging
Delete a Host
Hosts Table
Add a Host
View the Hosts Table
Add a Location to the Location Table
Bring Up the List of Commands
Location Table
Change a Location’s Parameters
Save Location Table Changes
View the Location Table
View a Particular Location
Location Table Parameters
Connection Type
IP Address
Netmask
IPX Network
Protocol
Routing
Compression
Dial Group
Maximum Ports
Idle Time-out
High Water Mark
MTU
PPP Async Map
Output Filter
Input Filter
Dial Script
Send Reply
LAN Port Net0 Configuration
Reset the Network Interface Card
View LAN Port Configuration
LAN Port Parameters
Ethernet Status
Configured Ethernet Media
Interface Address
Broadcast Address
IPX Frame Type
Set net0 ifilter filter name
Delete a netmask
Netmask Table
Add a netmask
View the netmask table
Save Port Configuration
Change a Port’s Parameters
To view all of the S-ports, use the following command
View the Ports Table
Idle Port is idle
View an Individual Port
User Login
Determining a Port’s Type
Host Device
Device Service
Network
Login Message
Dial In Port Parameters
Line Hangup
Login Prompt
Security Pass-Thru Login
User Login Port Parameters
Dialback Delay
Autolog Name
Host
Login Service
Terminal Type
Hardwired Port Parameters
IPX Network Number
Set s0 netmask netmask
NETServer sends RIP information across
Databits
Serial Communications Parameters
Port Speed
Stopbits
Host Override
Parity
Flow Control
Modem Control
Routes Table Configuration
Add a Route to the Routes Table
Change a Route’s Information
Delete a Routes Table Entry
Save Routes Table Changes
View the IP Routes Table
Viewing the IPX Routes Table
Flag Parameter
IP Parameters
IPX Parameters
Save the Snmp Table Changes
Snmp Table
Delete Snmp Hosts
Enabling/Disabling Snmp
Read Community Name
Snmp Table Parameters
View Snmp Table
Write Community Name
Read Hosts
Write Hosts
User Table
Add a User to the User Table
Save User Table Changes
Change a User’s Parameters
Delete a User
View the User Table
Login User Parameters
Access Filter
Dialback Number
Set user name service rlogin telnet netdata portmux
Command Reference
Network User Parameters
Dialback
IPX connections require the PPP protocol
NETServer sends RIP information to the dial
Set user filter name ofilter filter name
Command Reference
Appendix a Technical Specifications
16 port NETServer Hardware
Maximum Input Power
Power Requirements
Maximum Output Power
Typical Input Power
Technical Specifications A-3
External Serial Port Console
Ethernet Network Interface Card
10Base-T
10Base-2 BNC
Signal
Technical Specifications A-5
Isolated GND
Technical Specifications
Token Ring⎯STP Connector
Technical Specifications A-7
Token Ring Network Interface Card
Token Ring⎯UTP Connector
Technical Specifications A-9
NETServer Firmware Specifications
Administration
Routing Support
PPP Specific Features
Industry Standards Support
Client Dial-up Support
Technical Specifications A-11
Slip and PPP Client Software Support
Technical Specifications
IP Addressing Basics
Appendix B Addressing Schemes
IPX Addressing Basics
Addressing Schemes B-1
Address Classes
Subnetting
Addressing Schemes
Mask Binary Subnets Hosts
Addressing Schemes B-3
Reserved Addresses
Supernetting Advanced TCP/IP
Addressing Schemes B-5
Cidr Each Supernet is treated as a single entity
Addressing Schemes B-7
Step two Select a range of addresses for each supernet
Addressing Schemes B-9
Supernetting and the NETServer
Appendix C Software Download
SDL Using a Direct Connection to a PC
Why Perform an SDL Software Download?
Software Download C-1
Loading the Software Download SDL Program
Make Backup Copies of the NETServer Firmware
Software Installation
Starting SDL
SDL Command Syntax
Software Download C-3
Optional -d Parameter
Filename Prefixes
Entering SDL Mode
Software Download C-5
From the Windows Management Software
Upgrading NETServer Firmware
Upgrading the Modem Firmware
Software Download C-7
For the Isdn NETServer, the file names are
Error Messages
Software Download C-9
PC SDL program detected unknown command line argu- ments
Software Download C-11
Invalid Control Word
Software Download C-13
File you are trying to download is not a NETServer file
Appendix D Boot Process
Boot Process D-1
Boot Process
Using Syslog
Appendix E Syslog Accounting
Syslog Accounting E-1
Syslog System Message Format
Syslog System Messages
Spotting Unused Ports
Syslog Accounting
Syslog System Message Examples
Syslog Accounting E-3
Someone has logged in as !root on port S16
Syslog Accounting E-5
Syslog Accounting
Appendix F
Obtaining Radius
Security a Centrally Managed User Table
Setting Up Radius User Table Entries
Authentication Items
Response Items
Radius F-5
Framed-Netmask
Radius F-7
User Types
Radius F-9
Making NETServer talk to a Radius security server
Chap authentication using Radius
Radius accounting fields
Acct-Delay-Time
Radius Accounting
Acct-Status-Type
Accounting Examples
Acct-Authentic
Acct-Session-Time
Radius
Alphabetical Index
Index
Index
Icmp
MTU
NIC
PPP
SAP
Slip
Index
Index