VMware Lab Manager 4.0, User Manual

Page: 57 / 180

VMware, Inc. 57
Chapter 7 Working with Configurations
Figure 7 ‐ 1 illustrates configurations without fencing and with fencing.
Figure 7-1. Configuration A (Without Fencing) and Configuration B (With Fencing)
Fencing a configuration does not require any changes to its virtual machines. Within a fenced configuration,
virtual machines continue to use preassigned IP addresses to communicate with each other.
Fencing Connectivity
Three connectivity modes are available when you fence a configuration:

Allow In and Out – Virtual machines can communicate with machines outside the fence, and machines
outside the fence can communicate with virtual machines inside the fenced configuration.
Figure 7-2. Allow In and Out Fencing Mode
N
OTE
When you deploy a configuration in fenced mode with the Block In and Out option, Lab Manager does
not create a virtual router or assign external IP addresses. See “Fencing Connectivity” on page 57.
fenced
network
ESX Server host 2 ESX Server host 1
client machine
configuration a configuration b
(fenced)
physical network
legend
connection
fenced connection
IIP internal IP address
EIP external IP address for fenced configurations
VR virtual router
EIP 192.168.0.4 EIP 192.168.0.3
IIP
192.168.0.1
MAC 00:50:56:00:00:01
IIP
192.168.0.2
MAC 00:50:56:00:00:02
VM1 VM2
IIP
192.168.0.1
MAC 00:50:56:00:00:01
IIP
192.168.0.2
MAC 00:50:56:00:00:02
VM1 VM2
VR
fenced
network
ESX Server host
configuration
physical network
VM1
VR