Technical Documentation

Configuring the JUNOS Software 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:

[edit system internet-options]no-gre-path-mtu-discovery;

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

[edit system internet-options]gre-path-mtu-discovery;

Published: 2010-04-26