B.5.1 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.5 Example of configuring NIC switching mode (IPv6)

B.5.1 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".

An example of configuring /etc/radvd.conf to use Linux server as an IPv6 router is described below. For details on /etc/radvd.conf, refer to radvd.conf(5) manual. Do not configure radvd on the server running NIC switching mode.

1) On /etc/sysconfig/network-scripts/ifcfg-ethX file (ethX refers to an interface name), define a statement allows to activate the entire interfaces during the system startup. The following is an example of ifcfg-eth0.

DEVICE=eth0
ONBOOT=yes
TYPE=Ethernet

2) On /etc/sysconfig/network file, define a statement allows the system to load IPv6 module.

NETWORKING=yes
NETWORKING_IPV6=yes

3) Create /etc/radvd.conf file and define the following on the interface radvd uses. Depending on the versions of radvd, you must define the kernel parameter (net.ipv6.conf.all.forwarding=1) on /etc/sysctl.conf file. For details on this configuration, see radvd.conf(5) or radvd(8) manual.

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;
        };
};

4) Reboot the system. Make sure radvd process is running after rebooting the system.

[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.

fec0:1::1       v6hosta         # HOST-A Virtual IP
fec0:1::2       v6hostb         # HOST-B Virtual IP
fec0:1::100     swhub1          # Primary HUB IP
fec0:1::101     swhub2          # Secondary HUB 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
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
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 IPv6 interface using ifconfig command.

/sbin/shutdown -r now

3) Creating of virtual interface

/opt/FJSVhanet/usr/sbin/hanetconfig create inet6 -n sha0 -m d -i fec0:1::1/64 -t eth0,eth1

4) Setting up the HUB monitoring function

/opt/FJSVhanet/usr/sbin/hanetpoll create -n sha0 -p fec0:1::100,fec0:1::101 -b off

5) Setting up the Standby patrol monitoring function

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

6) Activating of virtual interface

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

7) Starting the HUB monitoring function

/opt/FJSVhanet/usr/sbin/hanetpoll on

[HOST-B]