ADTRAN NetVanta Internet-Based WAN Backup User Manual download pdf (Page 12)

The Internet as an Alternative Internet-based WAN Backup Solutions using NetVanta

ip policy-class DIAL

allow reverse list REMOTE_to_CENTRAL

ip policy-class LOCALLAN

allow list REMOTE_to_CENTRAL

nat source list Internet interface ppp 1 overload policy PoE

nat source list Internet interface ppp 2 overload policy DIAL

! Since the Internet traffic is using 'nat source' to the active interface IP address,

! a destination policy class is included in the previous NAT policies to control which

! NAT is used. Specifying a destination policy class restricts that policy for use on

! sessions that egress an interface with the specified policy class. This in conjunction

! with 'ip firewall fast-nat-failover allows NAT to adjust quickly when the egress

! interface changes.

ip policy-class PoE

allow reverse list REMOTE_to_CENTRAL

ip route 0.0.0.0 0.0.0.0 ppp 1 ! primary default route

ip route 0.0.0.0 0.0.0.0 ppp 2 3 ! backup default route

end

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ADTRAN NetVanta Internet-Based WAN Backup User Manual Page 12