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Configuring Tunnel Interfaces with the SRC CLI

A tunnel allows direct connection between a remote location and an application running on the C-series Controller; a tunnel lets you use the redirect server in deployments where a JUNOSe router does not have a direct connection to the C-series Controller.

The C-series Controller supports the following types of tunnel interfaces:

The other endpoint for the tunnel on a device must be configured for the tunnel to be operational.

The local address of a tunnel connection is an IP address that is configured for a unit (logical interface). Before you configure a tunnel interface, configure the interface on the C-series Controller.

See Configuring Gigabit Ethernet Interfaces for IPv4 with the SRC CLI.

Use the following configuration statements to configure tunnel interfaces at the [edit] hierarchy level:

interfaces name tunnel {
    mode (ipip | gre | sit);
    destination destination; 
    source source; 
    key key; 
    interface interface; 
    ttl ttl;
}

interfaces name unit unit-number family inet {
    address address; 
}

To configure a tunnel interface on a C-series Controller:

  1. From configuration mode, access the configuration statement that configures tunnel interfaces.
  2. [edit]
    
    user@host# edit interfaces name tunnel
    
    
    

For example:

[edit]
user@host# edit interfaces ip-tunnel tunnel

  1. Configure the type of tunnel.
  2. [edit interfaces ip-tunnel tunnel]
    
    user@host# set mode ipip
    
    
    

or

[edit interfaces ip-tunnel tunnel]
user@host# set mode gre

or

[edit interfaces ip-tunnel tunnel]
user@host# set mode sit


  1. Specify the IP address of the remote end of the tunnel.
  2. [edit interfaces ip-tunnel tunnel]
    
    user@host# set destination destination
    
    
    

For example:

[edit interfaces ip-tunnel tunnel]
user@host# set destination 192.0.2.20

  1. (Optional) Specify an IP address that will not change for the local tunnel endpoint. It must be an address on another interface of this host.
  2. [edit interfaces ip-tunnel tunnel]
    
    user@host# set source source
    
    
    

For example:

[edit interfaces ip-tunnel tunnel]
user@host# set source 192.20.10.5

  1. (Optional) For a GRE tunnel, specify a key.
  2. [edit interfaces ip-tunnel tunnel]
    
    user@host# set key key
    
    
    

For example:

[edit interfaces ip-tunnel tunnel]
user@host# set key 250

  1. (Optional) Specify an existing physical interface on the C-series Controller.
  2. [edit interfaces ip-tunnel tunnel]
    
    user@host# set interface interface
    
    
    

For example:

[edit interfaces ip-tunnel tunnel]
user@host# set interface eth0

  1. (Optional) Specify the lifetime of tunneled packets.
  2. [edit interfaces ip-tunnel tunnel]
    
    user@host# set ttl ttl
    
    
    

For example:

[edit interfaces ip-tunnel tunnel]
user@host# set ttl 110

  1. Verify the configuration by running the show command. For example:
  2. [edit interfaces]
    
    user@host# show 
    
    unit 0 {
    
      family { 
    
        inet6 { 
    
          address 192.2.0.10/24;
    
        }
    
      }
    
    }
    
    ip-tunnel {
    
      tunnel { 
    
          mode ipip;
    
          destination 192.0.2.20;
    
          source 192.20.10.5;
    
          interface eth0;
    
          ttl 110;
    
        }
    
    }
    


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