Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?





Hierarchy Level

Release Information

Statement introduced in Junos OS Release 9.2.


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.