HPE FlexNetwork MSR Series Comware 7 Layer 3 - Ip Services Configuration Manuals page 350

•
Do not specify the same source addresses for local tunnel interfaces in the same tunnel mode.
•
The destination address specified for the tunnel interface on the B4 router must be the source
address specified for the tunnel interface on the AFTR.
•
To ensure correct packet forwarding, identify whether the destination IPv4 network and the IPv4
address of the local tunnel interface are on the same subnet. If they are not, configure a route
reaching the destination IPv4 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.
Follow these guidelines when you configure the AFTR of a DS-Lite tunnel:
•
Do not specify the same source addresses for local tunnel interfaces in the same tunnel mode.
•
Enable NAT on the interface that is connected to the public IPv4 interface.
•
The tunnel destination cannot be configured on the AFTR. The AFTR uses the address of the
B4 router as the IPv6 address of the tunnel destination.
•
It is not necessary to configure a route to the destination IPv4 address for forwarding packets
through the tunnel interface.
To configure the B4 router of a DS-Lite tunnel:
Step
1. Enter system view.
2. Enter IPv6 tunnel interface
view.
3. Specify an IPv4 address for
the tunnel interface.
4. Specify the source address
or source interface for the
tunnel.
5. Specify the destination
address for the tunnel.
To configure the AFTR of a DS-Lite tunnel:
Step
1. Enter system view.
2. Enter the view of the
tunnel interface on the
AFTR.
Command
system-view
interface tunnel number [ mode
ipv6 ]
ip address ip-address { mask |
mask-length } [ sub ]
source { ipv6-address |
interface-type interface-number }
destination ipv6-address
Command
system-view
interface tunnel number [ mode
ds-lite-aftr ]
336
Remarks
N/A
N/A
By default, no IPv4 address is
specified for the tunnel interface.
By default, no source address or
interface is specified for the tunnel.
If you specify a source address, it
is used as the source IPv6 address
of tunneled packets.
If you specify a source interface,
the lowest IPv6 address of this
interface is used as the source
IPv6 address of tunneled packets.
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.
Remarks
N/A
N/A