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soft-gre

Syntax

Hierarchy Level

Description

Configure the conditions for enabling dynamic-bridged generic routing encapsulation (GRE) tunnel creation on the MX Series router Wi-Fi access gateway (WAG). You can configure the tunnel conditions for both IPv4 and IPv6 networks. The IP addresses for source-address, destination-networks, and remote-address specified in a given soft-GRE group must belong to the same address family. Therefore, you need to use two different Soft-GRE groups to configure both GRE over IPv4 and GRE over IPv6 dynamic or static tunnels.

Options

destination-networks [prefix]

Use the specified IP subnets from which soft-GRE connection requests from the customer can be processed.
group-name

Name of the dynamic GRE tunnel group.
dynamic-profile profile-name

Name of the dynamic profile that creates the tunnel.

Note:

To support VLAN autosensing on a GRE tunnel, you must also specify the auto-configure options at the [edit dynamic-profile profile-name interfaces unit] hierarchy level. These options include a reference to the dynamic profile that creates VLANs.
tunnel tunnel-name

Define static soft GRE tunnels for static subscribers. The remote-address is the GRE tunnel endpoint associated with the subscriber, typically the Multi-Dwelling Unit (MDU). Multiple tunnels are supported, each with a unique tunnel name and a unique remote address.
service-interface psn

Use the specified pseudowire subscriber interface device (IFD) on which the tunnels are built.
source-address wag-ip-address

Use the specified source IP address of the GRE tunnels for the WAG. This is the IP address on which incoming GRE traffic must be received by the MX Series router.
tunnel-idle-timeout seconds

(Optional) Use the specified number of seconds that a GRE tunnel remains up after the last subscriber session on the tunnel has ended. If set to 0, then no idle timeout is set, and the tunnel remains up for an unlimited period of time.

  • Range: 0 through 65535

  • Default: 120

Required Privilege Level

admin—To view this statement in the configuration.

admin-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 17.2R1.

The option tunnel added in Junos OS Release 25.2R1.

Statement support for IPv6 soft-GRE tunnels introduced in Junos OS Release 25.4R1.

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