Specifications
Table Of Contents
- About This Document
- Understanding Networking and IP Addressing
- Introduction to Networking
- Networking using IP
- Niagara Considerations
- Additional Information
- Configuration and Troubleshooting Tools
- Connecting on a LAN
- Connecting with Direct Dial
- Connecting to an ISP
- Using Security Technologies
- Configuration Files Used for Communication
- Glossary
- Index

Niagara Release 2.3
Revised: May 22, 2002 Niagara Networking & Connectivity Guide
Chapter 5 Connecting to an ISP
Configuring Captive ISP on the JACE-4/5
5–10
Note Do not change the information in the IP Address text box. This is the IP
address of the LAN interface (if used). You set the IP address of the dial-up
interface in the localAddr parameter of the ras.properties file.
Step 4
Remove any information in the Default Gateway text box to leave it blank.
Note The default gateway function will be handled by the routers at the ISP. If you
leave this set to the default gateway on the LAN, packets intended for the ISP
(and the Internet) will be routed to the Ethernet interface (and onto the LAN,
if one is attached).
Step 5
Click Apply.
Caution Do not reboot at this time. Rebooting prematurely could render the JACE
unreachable via the LAN. Reboot only when finished implementing the
remainder of the RAS settings. If you do reboot prematurely and lose contact
with the JACE, see “Troubleshooting Connectivity to an Existing JACE
Controller,” page 3-14 to find out how to reestablish connection.
Configuring
ras.properties
for Captive ISP
The ras.properties file is used to configure both direct dial and captive ISP (and the
modem). In Table 4-1 we examined the properties of this file that applied to direct
dial (see also “About the ras.properties File,” page 4-12). In Table 5-1 we examine
the ones that apply to captive ISP.
Table 5-1 Parameters of the ras.properties file used to configure captive ISP.
Sec-
tion Parameter
Valid Values and Default
Values (in Bold) Description
General Properties
rasEnable true
false
Change this to true to enable RAS for this JACE-4/5. The modem
will not accept calls when this setting is false. In addition, when this
is false, the JACE will not attempt to initialize any attached modem.
rasMode
directDial
captiveISP
Use captiveISP for this function. Direct dial mode is discussed in
Chapter 4, “Connecting with Direct Dial.”.
dialOutOnly true
false
Set this to true and the JACE will not accept incoming calls. For
captive ISP, you should leave this at false so that you can dial into
the JACE should it ever disconnect from the ISP.