
Configuring Dial Services
B-6
117353-B Rev. 00
Dial-on-Demand for an ISDN Network
This ISDN example assumes the following:
• All BRI connections use a National ISDN 1 (NI1) switch.
• There is no incoming call filtering.
• Sending complete IEs are not used for call setup.
• The adaption rate is 64 Kb/s.
• CHAP is the PPP authentication protocol.
• IP is the only LAN protocol configured.
• The Ethernet segments shown in the network illustration are not configured.
• Only one phone number and SPID are used. (BRI lines usually have two
phone numbers and SPIDs.)
Figure B-2
illustrates dial-on-demand configured for an ISDN network. In this
configuration:
• The BLN is using an MCT1 card (Port 2) for its PRI interface. The ISDN
switch type is PRI 5ESS.
• The IP static route configurations are not listed for the Ethernet interfaces.
(Typically, there would be static routes.)
Figure B-2. Dial-on-Demand for an ISDN Network
ISDN
Router 1
Router 2
ISDN 1
.1
Local phone no: 4366666
Switch type: 5ESS
CHAP local name: BLN
CHAP secret: ISDN
Local phone no: 4364444
Switch type: NI1
CHAP local name: ASN
CHAP secret: ISDN
BLN
M
C
T
1
ASN
MCT1-port 2
.3
132.132.132.0
DS0024A
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