R21xx-HP FlexFabric 11900 Layer 3 IP Services Configuration Guide

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interface of the route or specify the IPv6 address of the peer tunnel interface as the next hop of the
route. For the detailed configuration, see Layer 3—IP Routing Configuration Guide.
• The automatic tunnel interfaces using the same encapsulation protocol cannot use the same source
IP address.
To configure an ISATAP tunnel:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter ISATAP tunnel interface view.
interface tunnel number [ mode
ipv6-ipv4 isatap ]
N/A
3. Specify an IPv6 address for the
tunnel interface.
For configuration details, see
"Configuring basic IPv6 settings."
No IPv6 address is configured
for the tunnel interface by
default.
4. Configure a source address or
source interface for the tunnel
interface.
source { ip-address |
interface-type interface-number }
By default, no source address
or source interface is
configured for the tunnel
interface.
The specified source address or
the primary IP address of the
specified source interface is
used as the source IP address of
tunneled packets.
5. (Optional.) Set the DF bit for
tunneled packets.
tunnel dfbit enable
The DF bit is not set for tunneled
packets by default.
6. Return to system view.
quit N/A
7. (Optional.) Enable dropping of
IPv6 packets using
IPv4-compatible IPv6 addresses.
tunnel discard
ipv4-compatible-packet
The default setting is disabled.
Configuration example
Network requirements
As shown in Figure 79, configure an ISATAP tunnel between the switch and the ISATAP host so the ISATAP
host in the IPv4 network can access the IPv6 network.
Figure 79 Network diagram
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