https://networkingdocs.hpe.com/documentation/us/en/software/junos/cli-reference/topics/ref/statement/decapsulate-l2tp-edit-firewall-filter-term-then.html
decapsulate (Firewall Filter) | Junos OS | Juniper Networks
Define the termination action for GRE, UDP, and L2TP tunnels.
junos osjuniper networksdecapsulatefirewallfilter
https://docs.cloud.google.com/kms/docs/reference/rest/v1/projects.locations.keyRings.cryptoKeys.cryptoKeyVersions/decapsulate
Method: cryptoKeyVersions.decapsulate | Cloud Key Management Service | Google Cloud Documentation
cloud key managementmethoddecapsulateservicegoogle