314
Reply from 20.1.1.2: bytes=32 time=44ms TTL=255
Reply from 20.1.1.2: bytes=32 time=1ms TTL=255
Reply from 20.1.1.2: bytes=32 time=1ms TTL=255
Ping statistics for 20.1.1.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 51ms, Average = 24ms
Configuring an IPv6 over IPv6 tunnel
Follow these guidelines when you configure an IPv6 over IPv6 tunnel:
• The tunnel destination address specified on the local device must be identical with the tunnel
source address specified on the tunnel peer device.
• Do not specify the same source and destination addresses for local tunnel interfaces in the
same tunnel mode.
• The IPv6 address of the tunnel interface cannot be on the same subnet as the destination
address configured for the tunnel interface.
• To ensure correct packet forwarding, identify whether the destination IPv6 network and the IPv6
address of the local tunnel interface are on the same subnet. If they are not, configure a route
reaching the destination IPv6 network through the tunnel interface. You can configure the route
by using one of the following methods:
{ Configure a static route, and specify the local tunnel interface as the egress interface or
specify the IPv6 address of the peer tunnel interface as the next hop.
{ Enable a dynamic routing protocol on both tunnel interfaces to achieve the same purpose.
For more information about route configuration, see Layer 3—IP Routing Configuration Guide.
• The destination address of the route passing the tunnel interface cannot be on the same subnet
as the destination address configured for the tunnel interface.
To configure an IPv6 over IPv6 tunnel:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter IPv6 tunnel interface
view.
interface tunnel
number
[
mode
ipv6
]
N/A
3. Configure an IPv6 address
for the tunnel interface.
See "Configuring basic
IPv6 settings."
By default, no IPv6 address is configured
for the tunnel interface.
4. Configure the source address
or source interface for the
tunnel interface.
source
{ ipv6-address |
interface-type
interface-number }
By default, no source address or interface
is configured for the tunnel.
The specified source address or the IPv6
address of the specified source interface
is used as the source IPv6 address of
tunneled packets.
5. Configure the destination
address for the tunnel
interface.
destination
ipv6-address
By default, no destination address is
configured for the tunnel.
The tunnel destination address must be
the IPv6 address of the receiving interface
on the tunnel peer. It is used as the
destination IPv6 address of tunneled
packets.
6. Return to system view.
quit
N/A
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