Using IPv6 addresses

About this task

IP addresses can have either a dotted quad notation (IPv4) or IP Next Generation (IPv6) format. You can use IPv6 addresses if you define the parameter LSF_ENABLE_SUPPORT_IPV6 in lsf.conf; you do not have to map IPv4 addresses to an IPv6 format.

Enabling both IPv4 and IPv6 support

Procedure

Configure the parameter LSF_ENABLE_SUPPORT_IPV6=Y in lsf.conf.

Configuring hosts for IPv6

About this task

Follow the steps in this procedure if you do not have an IPv6-enabled DNS server or an IPv6-enabled router. IPv6 is supported on some linux2.4 kernels and on all linux2.6 kernels.

Procedure

  1. Configure the kernel.
    1. Check that the entry /proc/net/if_inet6 exists.
    2. If it does not exist, as root run: modprobe ipv6
    3. To check that the module loaded correctly, execute the command lsmod | grep -w ’ipv6’
  2. Add an IPv6 address to the host by executing the following command as root:/sbin/ifconfig eth0 inet6 add 3ffe:ffff:0:f101::2/64
  3. Display the IPv6 address using ifconfig.
  4. Repeat all steps for other hosts in the cluster.
  5. Add the addresses for all IPv6 hosts to /etc/hosts on each host.
    Note: For IPv6 networking, hosts must be on the same subnet.
  6. Test IPv6 communication between hosts using the command ping6.