Siemens RUGGEDCOM ROX II User Manual page 445

RUGGEDCOM ROX II
CLI User Guide
In this example, Router 1 establishes a GRE tunnel to Router 2 using a local router address of 172.16.17.18, a
remote router address of 172.19.20.21, and a remote subnet of 192.168.2.0/24.
NOTE
When connecting a Cisco router (in place of Router 1 in the previous example), the local router
address corresponds to the Cisco IOS source address and the remote router address corresponds to the
destination address.
The cost of the GRE tunnel can also be set if another method of routing between Router 1 and Router 2 becomes
available. The packets will automatically flow through the lowest cost route.
Packets can also be restricted by specifying a local egress device, such as w1pp in the case of Router 1 in the
previous example.
CONTENTS
• Section 12.7.1, "Viewing Statistics for GRE Tunnels"
• Section 12.7.2, "Viewing a List of GRE Tunnels"
• Section 12.7.3, "Adding a GRE Tunnel"
• Section 12.7.4, "Configuring a DSCP Marking for GRE Tunnel Traffic"
• Section 12.7.5, "Enabling/Disabling Keepalive Messages"
• Section 12.7.6, "Deleting a GRE Tunnel"
Section 12.7.1
Viewing Statistics for GRE Tunnels
To view the statistics collected for GRE tunnels, type:
show interfaces gre
A table or list similar to the following example appears:
ruggedcom# show interfaces gre
TUNNEL
IFNAME STATUS STATUS
------------------------------------------------------------------------
g1 Active Up
g2 Active Up
This table or list provides the following information:
Parameter
ifname
status
tunnel-status
Viewing Statistics for GRE Tunnels
RX RX RX
PACKETS ERRORS DROPS
52 0 0
0 0 0
Synopsis: A string 1 to 10 characters long
The GRE tunnel interface name.
Synopsis: A string 1 to 20 characters long
The status of the GRE tunnel interface, possible values include:
• Active - GRE tunnel interface is up;
• Inactive - GRE tunnel interface is down
This parameter is mandatory.
Synopsis: A string
The status of the GRE tunnel:
TX TX TX
PACKETS ERRORS DROPS
855 51 0
0 791 0
Description
Chapter 12
Tunneling and VPNs
399