Juniper JUNOSE 11.1.X - COMMAND REFERENCE N TO Z 4-6-2010 Command Reference Manual page 1381

Chapter 8: T Commands
tunnel checksum
[ no ] tunnel checksum
Syntax
Command introduced before JUNOSe Release 7.1.0.
Release Information
IP Tunnel Destination Profile Configuration mode added in JUNOSe Release 8.2.0.
In Interface Configuration mode, enables end-to-end checksum computation for
Description
static GRE tunnels.
In IP Tunnel Destination Profile Configuration mode, enables end-to-end checksum
computation for dynamic GRE tunnels. The no version disables the checksum option.
Interface Configuration, IP Tunnel Destination Profile Configuration
Mode
1339
tunnel checksum