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show gre tunnel
Copyright © 2010, Juniper Networks, Inc.
Use to display information about a GRE tunnel or a list of GRE tunnels.
To view detailed information about tunnels, specify the detail keyword.
To view the number of tunnels in a specific state, specify the state keyword and the
state of the tunnel (disabled, down, enabled, lower-down, not-present, up).
To view the state of a specific tunnel, specify a tunnel name.
To view the number of tunnels associated with an IP address, specify an IP address.
To view the number of tunnels associated with an IP address on the virtual router,
specify an IP address with the virtual-router keyword and the name of the virtual router.
Field descriptions
GRE tunnel—Name and state of the dynamic GRE tunnel:
Up—Tunnel is operational
Down—Tunnel is not operational
not-present—Tunnel is not operational, because the hardware (such as a line
module) supporting the tunnel is inaccessible
Application—Name of the application that created the tunnel
Tunnel mtu—Value of the maximum transmission unit for the tunnel
Tunnel source address—IP address of the source of the tunnel
Tunnel destination address—IP address of the destination of the tunnel
Tunnel transport virtual router—Name of the virtual router associated with the tunnel
Tunnel mdt—State of the tunnel MDT
Tunnel checksum option—State of the checksum feature: enabled or disabled
Tunnel sequence number option—State of the sequence number feature; enabled
or disabled
Tunnel up/down trap—Indicates whether or not the E Series router sends traps to
SNMP when the operational state of the tunnels changes, enabled or disabled
Tunnel server location—Location of the tunnel server in slot/port format (ERX7xx
models, ERX14xx models, and the ERX310 router) or slot/adapter/port format (E120
and E320 routers).
Tunnel is secured by ipsec transport interface—IPSec interface that secures the
tunnel.
Tunnel administrative state—Configured state of the tunnel: up or down
Statistics—Details of packets received or transmitted by the tunnel
Chapter 10: Configuring Dynamic IP Tunnels
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