700 Series ISDN Dial-On-Demand Sample Configuration
Dynamic IPX Routing To Another 700 Series Router		 Cisco Fast Step
Windows 95 Configuration Application

Note: The following configuration is for IPX only. It is a good idea to consider adding TCP/IP to the routers as well. Even though network demands may strictly be IPX, having TCP/IP on the routers will allow easier router management and configuration through a remote telnet session.

Dynamic IP And IPX Routing To Another 700Get An IPX Configuration With TCP/IP Added For Easier Management
Faxback Doc #0506

This sample configuration dynamically routes IPX between two Cisco 700 series routers using snapshot IPX RIP/SAP and PPP with CHAP authentication over ISDN. With snapshot IPX RIP/SAP, routing updates are exchanged between routers during a brief user defined interval rather than the constant periodic exchange required of normal RIP/SAP. Aside from this snapshot interval, the ISDN line activates only when traffic demands. This is known as dial-on-demand routing (DDR). In contrast, the periodic exchange of normal RIP would force the ISDN line to be permanently active, potentially resulting in high ISDN costs.

An alternative to DDR using a snapshot routing protocol is DDR using static routes. Routing tables are statically created by the network administrator eliminating the need for snapshot routing exchanges. For smaller networks, static routes may suffice. However, for larger networks, manually maintaining static routing tables on every router can be an administrative chore. Fortunately, the duration and frequency of the snapshot routing interval can be configured such that any ISDN costs due to dynamic routing are relatively negligible compared with the benefits of simplified network administration.

Static IPX Routing To Another 700Get A Configuration Using Static Routes if static routing is still desired.
Faxback Doc #0542

Static IP And IPX Routing To Another 700Get A Configuration Using Static Routes With TCP/IP Added For Easier Management
Faxback Doc #0506

PPP TutorialInfo On PPP
Faxback Doc #ppp		 Snapshot Routing TutorialInfo On Snapshot Routing
Faxback Doc #snapshot
 

Before You Begin

Detailed Command DescriptionsGet The IOS-700 Command Glossary
Faxback Doc #0554
Detailed descriptions of all commands used in the 700 series router sample configurations. Also provides links to the 700 Command Reference if more information is required.
  
Preconfiguration Checklist
ISDN Information
The following info must be gathered from the ISDN service provider
  1. ISDN Switch Type
  2. ISDN SPIDs (where applicable)
    In North America, SPIDs are required for all ISDN switch types except for 5ESS Custom Point-to-point
  3. ISDN Directory Numbers
    The directory number is the local seven digit ISDN phone number (no area codes) of your router
 Network Information
The following info must be gathered from the network administrator
  1. PPP Client Name
    A PPP client name must be assigned to both locations
  2. PPP Authentication Type
    CHAP authentication is preferred and used in this example
  3. PPP Password
    A PPP password must be assigned to both locations
  4. IPX Address Information
    An IPX network design must be created
  5. Phone Numbers
    ISDN phone numbers of both locations
 

Atlanta Router Configuration Script

> set systemname Atlanta
Atlanta> set switch ni-1
Atlanta> set 1 spid 404555111100
Atlanta> set 2 spid 404555222200
Atlanta> set 1 directory 5551111
Atlanta> set 2 directory 5552222
Atlanta> cd lan
Atlanta:LAN> set bridging off
Atlanta:LAN> set ipx routing on
Atlanta:LAN> set ipx network 100
Atlanta:LAN> set ipx framing 802.2
Atlanta:LAN> cd
Atlanta> set user Boston
Atlanta:Boston> set ppp clientname Atlanta
Atlanta:Boston> set ppp secret client
Enter new Password: gocisco1
Re-Type new Password: gocisco1
Atlanta:Boston> set ppp secret host
Enter new Password: gocisco1
Re-Type new Password: gocisco1
Atlanta:Boston> set bridging off
Atlanta:Boston> set ipx routing on
Atlanta:Boston> set ipx network AAAA
Atlanta:Boston> set ipx rip update snapshot
Atlanta:Boston> set ipx rip snapshot server active 5 update on
Atlanta:Boston> set 1 number 16175553333
Atlanta:Boston> set 2 number 16175554444
Atlanta:Boston> set ppp authentication outgoing chap
Atlanta:Boston> set timeout 300
Atlanta:Boston> set active

Boston Router Configuration Script

> set systemname Boston
Boston> set switch ni-1
Boston> set 1 spid 0155533330
Boston> set 2 spid 0155544440
Boston> set 1 directory 5553333
Boston> set 2 directory 5554444
Boston> cd lan
Boston:LAN> set bridging off
Boston:LAN> set ipx routing on
Boston:LAN> set ipx network 200
Boston:LAN> set ipx framing 802.3
Boston:LAN> cd
Boston> set user Atlanta
Boston:Atlanta> set ppp clientname Boston
Boston:Atlanta> set ppp secret client
Enter new Password: gocisco1
Re-Type new Password: gocisco1
Boston:Atlanta> set ppp secret host
Enter new Password: gocisco1
Re-Type new Password: gocisco1
Boston:Atlanta> set bridging off
Boston:Atlanta> set ipx routing on
Boston:Atlanta> set ipx network AAAA
Boston:Atlanta> set ipx rip update snapshot
Boston:Atlanta> set ipx rip snapshot client active 5 quiet 480 update on
Boston:Atlanta> set 1 number 14045551111
Boston:Atlanta> set 2 number 14045552222
Boston:Atlanta> set ppp authentication outgoing chap
Boston:Atlanta> set timeout 300
Boston:Atlanta> set active

After You've Tried

You've tried the configuration and it doesn't work. Help is available!

700 Series Router Troubleshooting GuideGet 700 Series Router Troubleshooting Assistance
Faxback Doc #700_ts
 

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