GRE Tunnel Configuration
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Alcatel-Lucent
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OmniAccess 5740 Unified Services Gateway CLI Configuration Guide
GRE TUNNEL CONFIGURATION
Refer to the following sections to configure GRE on the OmniAccess 5740 USG:
• “GRE Configuration Steps”
• “GRE Configuration Flow”
• “GRE Configuration Commands”
GRE CONFIGURATION STEPS
This section lists the steps for GRE tunnel configuration.
Step 1: Enter Interface Configuration Mode
ALU(config)# interface <name>
Example:
ALU(config)# interface GigabitEthernet3/0
ALU(config-if GigabitEthernet3/0)#
Step 2: Administratively bring up the interface
ALU(config-if <interface-name>)# no shutdown
Example:
ALU(config-if GigabitEthernet3/0)# no shutdown
Step 3: Configure IP address for the interface
ALU(config-if <interface-name>)# ip address {<ip-
address subnet-mask>|<ip-address/prefix-length>}
Example:
ALU(config-if GigabitEthernet3/0)# ip address
20.20.20.20/24
Step 4: Configure a Tunnel interface. See “To Configure a Tunnel Interface”
• Administratively bring up the tunnel interface. See “To Administratively Bring
Up/Shutdown the Tunnel Interface”
• Configure IP address for the tunnel interface. See “To Configure IP Address
on a Tunnel Interface”
• Set the mode on the tunnel interface. See “To Configure Mode on a Tunnel
Interface” (Optional)
• Configure the tunnel source for the tunnel interface. See “To Configure
Source IP Address for the Tunnel”
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