Configuring the Junos OS for Path MTU Discovery on Outgoing GRE Tunnel Connections

By default, path MTU discovery on outgoing GRE tunnel connections is enabled. To disable GRE path MTU discovery, include the no-gre-path-mtu-discovery statement at the [edit system internet-options] hierarchy level:

To reenable GRE path MTU discovery, include the gre-path-mtu-discovery statement at the [edit system internet-options] hierarchy level:

Related Topics

• Configuring the Junos OS for Path MTU Discovery on Outgoing TCP Connections