GRE Configuration Examples

Figure 36 Fig 2 Simple GRE configuration

10.3.1.0

40.1.1.0

192.168.94.220

192.168.55.75

 

18.3.1Configuring Site to Site Tunnel

To configure GRE in a site to site tunnel configuration:

Step 1: Configure the interface.

Blackbox> configure terminal Blackbox/configure> interface bundle wan1 Blackbox/configure/interface/bundle wan1> link t1 1 Blackbox/configure/interface/bundle wan1> encapsulation ppp Blackbox/configure/interface/bundle wan1> ip address 192.168.94.220 255.255.255.0

Blackbox/configure/interface/bundle wan1> exit

Step 2: Configure the tunnel.

Blackbox/configure> interface tunnel t0 Blackbox/configure/interface/tunnel t0> ip 103.1.1.2 24 Blackbox/configure/interface/tunnel t0> tunnel source 192.168.94.220 Blackbox/configure/interface/tunnel t0> tunnel destination 192.168.55.75

Blackbox/configure/interface/tunnel t0> exit

Step 3: Configure the IP routes.

Blackbox/configure> ip route 0.0.0.0 0.0.0.0 192.168.94.254

Blackbox/configure> ip route 40.1.1.0 24 t0

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Black Box LR1114A-T1/E1, LR1112A-T1/E1, LR1104A-T1/E1 18.3.1Configuring Site to Site Tunnel, GRE Configuration Examples