R21xx-HP FlexFabric 11900 Layer 3 IP Services Configuration Guide

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Ste
p
Command Remarks
8. (Optional.) Configure the
device to discard IPv6 packets
with IPv4-compatible IPv6
addresses
tunnel discard
ipv4-compatible-packet
By default, the device does not
discard such IPv6 packets.
For information about tunnel interfaces and more configuration commands on a tunnel interface, see
"Configuring tunneling.."
F
or more information about the interface tunnel, source, destination, and tunnel discard
ipv4-compatible-packet commands, see Layer 3—IP Services Command Reference.
Displaying and maintaining GRE
Execute display commands in any view.
Task Command Remarks
Display information about
tunnel interfaces.
display interface [ tunnel [ number ] ]
[ brief ]
For more information about this
command, see Layer 3—IP Services
Command Reference.
Display IPv6 information about
tunnel interface.
display ipv6 interface [ tunnel
[ number ] ] [ brief ]
For more information about this
command, see Layer 3—IP Services
Command Reference.
GRE configuration examples
GRE over IPv4 configuration example
Network requirements
Switch A and Switch B are connected to the Internet running IPv4. Establish a GRE tunnel between the
switches to interconnect the two private IPv4 networks Group 1 and Group 2.
Figure 86 Network diagram
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