Wiki

# Current network setup for IPv6 router VM on local virtualbox setup # /etc/sysconfig/network-scripts/ifcfg-enp0s3 # Network interface enp0s3 is IPv4 for public internet access TYPE="Ethernet" BOOTPROTO="dhcp" DEFROUTE="yes" PEERDNS="yes" PEERROUTES="yes" IPV4_FAILURE_FATAL="no" IPV6INIT="yes" IPV6_AUTOCONF="yes" IPV6_DEFROUTE="yes" IPV6_PEERDNS="yes" IPV6_PEERROUTES="yes" IPV6_FAILURE_FATAL="no" NAME="enp0s3" UUID="32bad876-680a-4f78-a364-726eae21bfcf" DEVICE="enp0s3" ONBOOT="yes"

# /etc/sysconfig/network-scripts/ifcfg-enp0s8 # Network interface enp0s8 is IPv6 internal interface to provide IPv6 to internal hosts BOOTPROTO=static IPV6INIT=yes IPV6ADDR="2001:db8:0:2::1/64" NAME=enp0s8 UUID=e931a806-2f76-425d-b035-d37813b81df5 DEVICE=enp0s8 ONBOOT=yes NM_CONTROLLED=no

# Disable NetworkManager systemctl disable NetworkManager

# Install dhcp.x86_64, dhcp-common.x86_64, radvd.x86_64 if not already installed yum install dhcp-common yum install dhcp yum install radvd

# /etc/sysctl.conf Set sysctl to enable IPv6 forwarding net.ipv6.conf.all.forwarding=1 net.ipv6.conf.enp0s8.accept_ra=2 net.ipv6.conf.enp0s8.accept_ra_defrtr=1 net.ipv6.conf.enp0s8.router_solicitations=1

# /etc/dhcpd/dhcpd6.conf # DHCP for IPv6 Server Configuration file.

# Enable RFC 5007 support (same than for DHCPv4) allow leasequery;

# IPv6 address valid lifetime # (at the end the address is no longer usable by the client) # (set to 30 days, the usual IPv6 default) default-lease-time 2592000;

# IPv6 address preferred lifetime # (at the end the address is deprecated, i.e., the client should use # other addresses for new connections) # (set to 7 days, the usual IPv6 default) preferred-lifetime 604800;

# T1, the delay before Renew # (default is 1/2 preferred lifetime) # (set to 1 hour) option dhcp-renewal-time 3600;

# T2, the delay before Rebind (if Renews failed) # (default is 3/4 preferred lifetime) # (set to 2 hours) option dhcp-rebinding-time 7200;

# The path of the lease file dhcpv6-lease-file-name "/var/lib/dhcpd/dhcpd6.leases";

# Set preference to 255 (maximum) in order to avoid waiting for # additional servers when there is only one option dhcp6.preference 255;

# Server side command to enable rapid-commit (2 packet exchange) option dhcp6.rapid-commit;

# The delay before information-request refresh # (minimum is 10 minutes, maximum one day, default is to not refresh) # (set to 6 hours) option dhcp6.info-refresh-time 21600;

# Set this to `interim' when doing ddns updates ddns-update-style interim;

subnet6 2001:db8:0:2::/64 {

  # Our address range eeff through ffff
  range6
      2001:db8:0:2::1000
      2001:db8:0:2::1fff;
      option dhcp6.name-servers 2001:db8:0:2::1;
      option dhcp6.domain-search "opnfv.local";
      ddns-hostname = concat(binary-to-ascii(10, 8, "-", leased-address), ".wired");
      ddns-domainname = "opnfv.local";

}

# /etc/radvd.conf interface enp0s8 {

  AdvSendAdvert on;
  ### This is the primary "on switch" for RADVd

# # These settings determine how offten advertisements will be sent every X-Y. # X and Y are in seconds. With these settings you will be sending a advert every 60 seconds #

  MinRtrAdvInterval 60;
  MaxRtrAdvInterval 180;

# # Disable Mobile IPv6 support #

  AdvHomeAgentFlag off;

# Here we set our managed flags

  AdvManagedFlag on;
  AdvOtherConfigFlag on;

# # Enter our IPv6 prefix and CIDR #

  prefix 2001:db8:0:2::/64
  {
      AdvOnLink on;
      ### On link tells the host that the default router is on the same "link" as it is
      AdvAutonomous on;
      AdvRouterAddr off;
  };

};

# Enable dhcpd6 and radvd service systemctl enable dhcpd6.service systemctl enable radvd