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Chapter 14 Load Balancing in the P333R-LB
Avaya P333R-LB User’s Guide 17
this scenario, the firewalls are configured to perform NAT for some hosts, and not
for other hosts. Alternatively, the firewalls may be configured to assign a specific
NAT address to a specific host. In this case, two load balancers are required, one on
each side of the firewalls.
NAT Configuration Example
The following figure illustrates non-Transparent Routing FWLB using NAT.
Figure 14.5 Non-Transparent Routing FWLB Sample NAT Configuration
Note: The P333R-LB performs load balancing on traffic that arrives to its routing
interfaces. Therefore, IP routes in the network must be configured to pass through
the P333R-LB.
To configure your network as in Figure 14.5, the following should be done:
• The LAN routers (or hosts) should be configured with 10.4.1.3 as the next hop
toward the WAN (the default gateway in many cases).
• The access router should be configured with 193.170.1.3 as the next hop toward
the LAN.
• The firewalls should be configured with 10.1.1.3 as the next hop towards the
LAN and 193.170.1.3 toward the WAN.
The following configuration file is a result of configuring your network as shown in
Figure 14.5:
-----------------
P333R-LB
-----------------
hostname "P333R-LB"
!
Internet
10.1.1.3
10.1.1.1
10.1.1.2
NAT 1=193.170.1.1
NAT 2=193.170.1.2
193.170.1.3
10.4.1.3
LAN
Server
Server
Firewall 1
RSG fw-group
P333R-LB
Access Router
Firewall 2