Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 127)

Configuring point-to-point GRE tunnel for FastIron A
device (config)# interface ethernet 3/1
device (config-if-e1000-3/1)# ip address 10.0.8.108/24
device (config)# exit
device (config)# interface tunnel 1
device(config-tnif-1)# tunnel source 10.0.8.108
device(config-tnif-1)# tunnel destination 131.108.5.2
device(config-tnif-1)# tunnel mode gre ip
device(config-tnif-1)# tunnel loopback 4/1
device(config-tnif-1)# ip address 10.10.3.1/24
device(config-tnif-1)# exit
device (config)# ip route 131.108.5.0/24 10.0.8.1
device(config)# ip route 10.10.2.0/24 tunnel 1
Configuring point-to-point GRE tunnel for FastIron B
device(config)# interface ethernet 5/1
device(config--if-e1000-5/1)# ip address 131.108.5.2/24
device(config)# exit
device(config)# interface tunnel 1
device(config-tnif-1)# tunnel source 131.108.5.2
device(config-tnif-1)# tunnel destination 10.0.8.108
device(config-tnif-1)# tunnel mode gre ip
device(config-tnif-1)# tunnel loopback 1/1
device(config-tnif-1)# ip address 10.10.3.2/24
device(config-tnif-1)# exit
device(config)# ip route 10.0.8.0/24 131.108.5.1
device(config)# ip route 10.10.1.0/24 tunnel
Displaying GRE tunneling information
This section describes the show commands that display the GRE tunnels configuration, the link status
of the GRE tunnels, and the routes that use GRE tunnels.
To display GRE tunneling Information, use the following commands:
• show ip interface
• show ip route
• show ip interface tunnel
• show ip tunnel traffic
• show interface tunnel
• show statistics tunnel
The following shows an example output of the show ip interface command, which includes information
about GRE tunnels.
Brocade# show ip interface
Interface IP-Address OK? Method
Status Protocol VRF
Tunnel 1 101.1.1.1 YES NVRAM
up up red
Tunnel 3 89.1.1.1 YES NVRAM
up up default-vrf
For field definitions, refer to Displaying IP interface information on page 135.
Syntax: show ip interface
The show ip route command displays routes that are pointing to a GRE tunnel as shown in the
following example.
device# show ip route
Configuring point-to-point GRE tunnel for FastIron A
FastIron Ethernet Switch Layer 3 Routing Configuration Guide 127
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