CHAPTER 4. GRE
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5.
Check the status of the tunnel by entering:
Router# show interface tunnel t0
6.
Validate the tunnel configuration by entering:
Router# show crypto ipsec policy all
Or enter:
Router# show crypto ike policy all
Configuring GRE Site to Site with IPSec and OSPF
This example extends the previous IPSec configuration example by enabling
Open Shortest Path First(OSPF) protocol which provides redundant paths for
the tunnel.
1.
To enable OSPF, add to the Ubigate iBG2016 configuration above:
Router# configure terminal
Router/configure# router-id 2.2.2.2
Router/configure# router ospf
Router/configure/router/ospf# network 103.1.1.0/24 area 0
Router/configure/router/ospf# exit
2.
Add to the Cisco-compatible configuration above:
cisco # config t
cisco(config)#router ospf 1
cisco(config-router)# network 103.1.1.0 0.0.0.255 area 0
3.
To verify the OSPF configuration, enter:
Router# show ip ospf interface
Using the redistribute connected command adds a recursive route to
the tunnel destination. This will cause the tunnel to shut down.
To prevent this, add a 32-bit static route for the tunnel destination.
Содержание Ubigate iBG2016
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