Cisco Cisco 4G LTE Enhanced High-Speed WAN Interface Cards for LATAM
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ip local policy route-map track-primary-if
!local policy to swtich NAT when the primary to backup switch-over happens
!
ip nat inside source route-map nat2dsl interface Dialer2 overload
!NAT entry for primary internface
ip nat inside source route-map nat2cell interface Cellular0/0/0 overload
!NAT entry for the backup interface
!
!
ip route 0.0.0.0 0.0.0.0 Dialer2 track 234
!primary route being tracked by 234 track defined earlier
!
ip route 0.0.0.0 0.0.0.0 Cellular0/0/0 254
!
!Backup router with higher admin distance (254), this will become primary when
track fails
track fails
!
ip sla 1
icmp-echo 128.107.248.252 source-interface Dialer2
frequency 2000
ip sla schedule 1 life forever start-time now
!IP SLA defines the IP address to ping to and how often, when ping fails, the
!
dialer-list 1 protocol ip permit
!
!dialer list 1 allows the dialer group 1 to dial out for any IP packet
!
route-map track-primary-if permit 10
match ip address 102
set interface Dialer2 Null0
!to make sure we are sending tracking pings only via primary
route-map nat2dsl permit 10
match ip address 101
match interface Dialer2
!
route-map nat2cell permit 10
match ip address 101
match interface Cellular0/0/0
!above route maps (nat2cell and nat2dsl) to choose correct interface in use to
NAT
NAT