TCP/IPv6 Configuration and Management Manual (G06.24+)

Example Illustrations and Adding Features to the
Basic Configuration
HP NonStop TCP/IPv6 Configuration and Management Manual—524523-008
5-4
DUAL Mode, Ethernet Failover
This example shows that:
•
When configuring a SUBNET for DUAL-mode with Ethernet failover, set the
FAMILY attribute to DUAL.
•
In this ADD SUBNET command, you specify the IPv4 IP address just like you do
for the example without Ethernet failover.
•
For the IPv6 address, you specify the IPV6INTERFACEID attribute. This attribute
overrides the automatically-generated interface ID with an interface ID that you
specify. The IPv6 address on the SUBNET must share an interface ID with its
associated SUBNET.
•
The attribute FAILOVER SHAREDIP sets up both the IPv4 and IPv6 addresses on
the SUBNET to use shared IP mode.
•
The IPV6RAENABLE ON attribute enables the SUBNET to obtain a prefix from the
router. This prefix is prepended to the interface ID.
•
As the IP Ethernet failover configuration is shared, the IPv4 addresses are the
same (172.14.215.27) and the IPv6 interface IDs are the same (::ABCD:1234). For
shared IP Ethernet failover, you must also have a valid, reserved IP address that
Figure 5-3. DUAL-Mode SUBNET, Ethernet Failover, Shared IP, Example 1-8
IPv4 Network
Host, Dual Mode
172.14.215.27
SN4
VST143.vsd
TUN
IPv4 Host
IPv6 Host
172.14.215.27
SN3
Automatically assigned IPv6
prefix prepended to ::abcd:1235
Reserved
Automatically assigned IPv6
prefix prepended to ::abcd:1234
SN3, SN4