OAM Interface and Static Routes

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.

   

   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_#