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# gre-tunnel policy

#### Syntax

gre-tunnel policy { input | output } policyName
[ statistics { enabled | disabled | preserve } | merge ]

no gre-tunnel policy { input | output } [ policyName ]

#### Release Information

Command introduced before JUNOSe Release 7.1.0.
merge keyword added in JUNOSe Release 7.2.0.

#### Description

Assigns a GRE tunnel policy list to an interface. If you enter the gre-tunnel policy command and the policy list does not exist, the router creates a policy list with no rules, the default. Attaching this policy list to an interface filters all packets on that interface. You must specify the input or output keyword to assign the policy list to the ingress or egress of the interface. The no version removes the association between a policy list and an interface.

#### Options

- input—Applies policy to data arriving at this interface
- output—Applies policy to data leaving this interface
- policyName—Name of the policy; a maximum of 40 characters
- statistics—Enables or disables collection of policy routing statistics
  - enabled—Enables collection of policy routing statistics
  - disabled—Disables collection of policy routing statistics
  - preserve—Preserves existing statistics for any classifier-list that is the same for both the new and old policy attachments when you attach a new policy to an interface
- merge—Enables merging of multiple policies to form a single policy

#### Mode

Interface Configuration

#### Related Topics

- Setting a Statistics Baseline for Policies

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