If Gateways are to be deployed with an OAM interface, complete the following steps.

  1. Add an additional interface to the VM (ETH2).

    VMware

    If a dedicated VNIC for Management/OAM is desired, add another vNIC of type vmxnet3. You must repeat the previous step, which is to click OK and then Edit Settings again so you can make a note of the vNIC MAC address.

    vcg-edit-settings-new-network

    KVM

    If a dedicated VNIC for Management/OAM is desired, make sure you have a libvirt network named oam-network. Then add the following lines to your XML VM structure:

    …..
    </controller>
    <interface type='network'>
      <source network='public_interface'/>
      <vlan><tag id='#public_vlan#'/></vlan>
      <alias name='hostdev1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x11' function='0x0'/>
    </interface>
    <interface type='network'>
      <source network='inside_interface'/>
      <alias name='hostdev2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x12' function='0x0'/>
    </interface>
    <interface type='network'> 
      <source network='oam_interface'/>
      <vlan><tag id='#oam_vlan#'/></vlan>
      <alias name='hostdev2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x13' function='0x0'/>
    </interface>
    <serial type='pty'>
      <source path='/dev/pts/3'/>
      <target port='0'/>
      <alias name='serial0'/>
    </serial>
  2. Configure the meta-data file with the additional interface.
    instance-id: #_Hostname_#
    local-hostname: #_Hostname_#
    network-interfaces: |
    auto eth0
    iface eth0 inet static
    address #_IPv4_Address_#
    netmask #_IPv4_Netmask_#
    gateway #_IPv4_Gateway_#
    dns-nameservers #_DNS_server_primary_# #_DNS_server_secondary_#
    auto eth1
    iface eth1 inet static
    metric '13'
    address #_MGMT_IPv4_Address_#
    netmask #_MGMT_IPv4_Netmask_#
    gateway #_MGMT_IPv4_Gateway_#
    dns-nameservers #_DNS_server_primary_# #_DNS_server_secondary_#
    auto eth2
    iface eth2 inet static
    address #_OAM_IPv4_Address_# 
    netmask #_OAM_IPv4_Netmask_# 
    up route add -net 10.0.0.0 netmask 255.0.0.0 gw #_OAM_IPv4_Gateway_# 
    up route add -net 192.168.0.0 netmask 255.255.0.0 gw #_OAM_IPv4_Gateway_# 
    dns-nameservers # _DNS_server_primary_# #_DNS_server_secondary_#