! Listing 6.14: South router with primary (Frame Relay) link to data center. 
!
!Copyright (C) 2001 by Vincent C Jones. All Rights Reserved.


version 11.0
!
hostname South
! Router with primary link being backed up
interface Ethernet0
 ip address 10.101.5.1 255.255.255.0
!
interface Serial0
 no ip address
 encapsulation frame-relay
!
interface Serial0.17 point-to-point
 description Primary link to Data Center
 ip address 10.201.5.2 255.255.255.252
 bandwidth 56
 delay 2000
 frame-relay interface-dlci 17 broadcast
!
router eigrp 1
 network 10.0.0.0
 no auto-summary
!
! Default route is via learned path to data center LAN
ip route 0.0.0.0 0.0.0.0 10.1.255.254 150
!
end