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Page 80 - Part 1 IP Connectivity 
How Do I? 
Advanced WAN set-up 
The advanced WAN configuration detailed below provides the same connectivity 
as the previous example (Quick WAN set-up). This example allows the 
connection to be authenticated in both directions using CHAP. The Outgoing 
Service Name and Password are matched against the Account name and 
Incoming Password. 
Whilst the example details the configuration of WAN service it does not use the 
WAN service type configuration that was used in the Quick WAN set-up. With a 
WAN service type set to a Normal service type, the User and RAS items are 
created and combined into a single entity. This configuration example will detail 
the manual steps for creating the items which will be combined into a single item 
equivalent to a WAN type service. 
Although the WAN service type used in the previous example (Quick WAN set-
up) can be used for CHAP authentication between IPNC systems, the 
configuration here demonstrates the flexibility of the authentication mechanism. 
The flexibility of the IPNC means it may be configured to interoperate with the 
many varied requirements of 3
rd
 party routers. 
 
Task
 
Description
 
Step 1 
Attach the WAN cable to the unit and reboot 
 
It is important that, when a new WAN device is 
created in the configuration, the IPNC is re-
booted with the WAN cable attached. 
Note:  Do not attempt to manually create a 
WAN device 
 
Step 2 
Obtain configuration file for Unit1 and perform the 
following tasks: 
1.  Create a Normal Service type 
•  Name = unit1 
•  Account name = unit2 
•  Password = password2 
•  Encrypted Password = selected 
 
2.  Create a User 
•  Name = unit1 
•  Password = password1 
•  On the Dial-In Tab select Dial-In On 
 
3.  Create a RAS 
•  Name = unit2 
 
4.  Modify the WAN device and add the following 
parameters 
•  Speed = as specified 
•  Mode = SyncPPP 
•  RAS Name
 
= unit2 
 
Once these tasks are completed successfully 
select the newly created User/ Service and 
confirm details are as shown below, If not 
check spelling of Names/Account Names. 
 
Parameter Value 
 
Name (Outgoing) 
unit2 
 
Account Name (Incoming) 
unit1 
 
Password (Outgoing) 
password2 
 
Incoming Password  
password1 
 
Notes:  1.  Passwords are encrypted in the 
Manager display and are not 
displayed. 
 
2.  The Speed of the WAN link should 
be obtained from the provider. 
 
Selection of the Encrypted Password option 
causes the IPNC to seek to authenticate the 
remote peer (i.e. the IPNC will issue a CHAP 
Challenge). It should be noted that with this 
option unselected the IPNC will agree to be 
authenticated and respond to CHAP but will 
not issue a CHAP Challenge This behaviour 
should be noted when interoperating CHAP 
authentication with 3
rd
 party routers. 
 
 
Page 80 - How Do I? 
INDeX IPNC Cassette Administration Manual 
Part 1 IP Connectivity 
38DHB0002UKDD – Issue 7 (22/11/02)