Note
- In both configurations that the incoming client traffic is assumed to originate on the other side of the gateway
device for the subnets on which Equalizer and the servers reside. The servers will usually have their default gateway
set to something other than Equalizer so that they can respond directly to client requests.
The cluster parameters
Direct Server Return, Spoof
, and
Idle Timeout
are directly related to direct
server return connections:
l
Direct Server Return -
this option enables Direct Server Return. All requests to this cluster IP
will be forwarded to the server with the client IP as the source IP, and the cluster IP as the
destination IP. The loopback interface of the server must be configured with the cluster IP
to receive the requests. See “Configuring Servers for Direct Server Return” on page 183.
l
Spoof -
this option causes Equalizer to spoof the client IP address when Equalizer routes a
request to a server in a virtual cluster; that is, the IP address of the client is sent to the
server, not the IP address of the Equalizer. This flag must be enabled for DSR.
l
Idle Timeout -
The is the time in seconds before reclaiming idle Layer 4 connection records.
Applies to Layer 4 TCP clusters only. For DSR the
Idle timeout
slider must be set to a non-
zero value, or Equalizer will never reclaim connection records for connections terminated
by the server. The cluster's
Idle Timeout
should be set to the longest period within your
application that you would like Equalizer to wait for consecutive messages from the client
(since the Equalizer does not see server packets on DSR connections). For example, if the
longest expected server response time and the longest expected delay between client
responses on active connections are both 60 seconds, then set the
Idle Timeout
slider to 120
seconds.
To create a new cluster or modify an existing one for DSR, do the following:
Copyright © 2014 Coyote Point Systems, A Subsidiary of Fortinet, Inc.
All Rights Reserved.
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Equalizer Administration Guide
Summary of Contents for Equalizer GX Series
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