B.6.1 Example of the Single system without NIC sharing

PRIMECLUSTER Global Link Services Configuration and Administration Guide: Redundant Line Control Function 4.1 (for Linux)

Contents Index

Appendix B Examples of configuring system environments

> B.6 Example of configuring NIC switching mode (IPv4/IPv6)

B.6.1 Example of the Single system without NIC sharing

This section describes an example configuration procedure of the network shown in the diagram below.

The xx in the figure below are assigned automatically by the automatic address configuration.

For the network configuration other than GLS, refer to "3.2.2 Network configuration".
The dotted line indicates that the interface is inactive.

For configuring Linux server to use as IPv6 router, refer to "B.5.1 Example of the Single system without NIC sharing". The following is an example of configuring /etc/radvd.conf of the figure above. For details on /etc/radvd.conf, refer to radvd.conf(5) manual. In addition, do not configure radvd on the server running NIC switching mode.

interface eth0
{
        AdvSendAdvert on;        # Sending router advertisements
        MinRtrAdvInterval 3;
        MaxRtrAdvInterval 10;
        prefix fec0:1::0/64      # Sending Prefix fec0:1::0/64 from eth0
        {
                AdvOnLink on;
                AdvAutonomous on;
                AdvRouterAddr on;
        };
};

[HOST-A]

1) Setting up the system

1-1) Define IP addresses and hostnames in /etc/inet/hosts file. Note that it is not necessary to define an IPv6 address, which automatically allocates address by the Stateless Address Autoconfiguration feature.

192.168.70.1    hosta   # HOST-A Virtual IP
192.168.70.2    host11  # HOST-A Physical IP
192.168.70.3    hostb   # HOST-B Virtual IP
192.168.70.4    host21  # HOST-B Physical IP
192.168.70.100  swhub1  # Primary HUB IP
192.168.70.101  swhub2  # Secondary HUB IP
fec0:1::1       v6hosta    # HOST-A Virtual IP
fec0:1::2       v6hostb    # HOST-B Virtual IP

1-2) Configure /etc/sysconfig/network-scripts/ifcfg-ethX (X is 0,1) file as follows.

- Contents of /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
BROADCAST=192.168.70.255
IPADDR=192.168.70.2
NETMASK=255.255.255.0
NETWORK=192.168.70.0
ONBOOT=yes
TYPE=Ethernet

- Contents of /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
ONBOOT=no
TYPE=Ethernet

1-3) On the /etc/sysconfig/network file, define a statement which enables the network configuration.

NETWORKING=yes
NETWORKING_IPV6=yes
IPV6TO4INIT=no

2) Reboot

Run the following command and reboot the system. After rebooting the system, verify eth0 is enabled as an IPv4/IPv6 interface using ifconfig command.

/sbin/shutdown -r now

3) Setting a subnet mask

/opt/FJSVhanet/usr/sbin/hanetmask create -i 192.168.70.0 -m 255.255.255.0

4) Creation of IPv4 virtual interface

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0 -m d -i 192.168.70.1 -e 192.168.70.2 -t eth0,eth1

Ensure that the physical IP address specified using option '-e' is the same IP address configured in /etc/sysconfig/network-scripts/ifcfg-eth0.

5) Creation of IPv6 virtual interface

/opt/FJSVhanet/usr/sbin/hanetconfig copy inet6 -n sha0,sha0 -i fec0:1::1/64

6) Setting up the HUB monitoring function

/opt/FJSVhanet/usr/sbin/hanetpoll create -n sha0 -p 192.168.70.100,192.168.70.101 -b off

7) Setting up the Standby patrol monitoring function

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha1 -m p -t sha0

8) Activating of virtual interface

/opt/FJSVhanet/usr/sbin/strhanet -n sha0

9) Starting the HUB monitoring function

/opt/FJSVhanet/usr/sbin/hanetpoll on

[HOST-B]