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Hierarchy Level


Enable reassembly of fragmented generic routing encapsulation (GRE) encapsulated packets on GRE tunnel interfaces at the endpoint of the GRE tunnel.

GRE-encapsulated packets are fragmented if the allow-fragmentation statement is configured for the GRE tunnel and the size of the GRE-encapsulated packet exceeds the maximum transmission unit (MTU) value of a link that the packet passes through.


If you do not include the reassemble-packets statement, the GRE tunnel interface does not reassemble fragmented GRE-encapsulated packets.

Required Privilege Level

interface—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 9.2.