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Configuring Tunnel Interfaces (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:

GRE—Generic routing encapsulation. Encapsulates traffic that can use various network protocols within IP. For C-series Controllers, the tunnel interface encapsulates IP packets.
IP-over-IP—Encapsulates IP packets within IP packets.
SIT—Encapsulates IPv6 traffic in an IPv4 tunnel. This type of tunnel allows compatibility of IPv6 traffic within an IPv4 network.

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 (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:

From configuration mode, access the configuration statement that configures tunnel interfaces.
For example:
Configure the type of tunnel.
or
or
Specify the IP address of the remote end of the tunnel.
For example:
(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.
For example:
(Optional) For a GRE tunnel, specify a key.
For example:
(Optional) Specify an existing physical interface on the C-series Controller.
For example:
(Optional) Specify the lifetime of tunneled packets.
For example:

Verify the configuration by running the show command. For example:

[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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