Coyote Point Systems E350GX Installation And Administration Manual page 123

port
idle timeout
disable
spoof
direct server return
Equalizer Installation and Administration Guide
For L4 UDP and L4 TCP protocol clusters, a port range can be defined using
the start port and end port fields. These are the ports on the Equalizer to be
used to send traffic to the servers in the cluster. Port ranges allow Equalizer
users to create a single cluster to control the traffic for multiple, contiguous
ports. There are two typical uses for port ranges:
1Specific applications that require a range of ports.
2The need to open up access to servers behind the Equalizer for all ports.
Enter the first port number in the start port field (which is required). Enter
the end port number in the end port field.
When the end port field is left with a value of zero (the default), Equalizer
disables the port range feature and uses the start port as the server port.
The start port cannot be higher than end port when end port is nonzero.
The port defined for a server in the cluster for which a port range is defined
indicates the port on the server that starts the range of ports to be opened.
See "Adding a Server to a Cluster" on page 142.
The time in seconds before reclaiming idle Layer 4 connection records. Applies
to Layer 4 TCP clusters only. See "Layer 4 Connection Timeouts" on page 231
for a full description. If you enable direct server return (see below), you
may also need to increase this value as explained in the section "Configuring
Direct Server Return (DSR)" on page 177.
Disable this cluster. The cluster ip will not accept requests when this flag is
enabled.
spoof 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 option is on by
default. If you disable this option, the server receiving the request will see the
Equalizer's address as the client address because the TCP connection to the
client is terminated when the request is routed. When spoof is enabled, the
servers in the cluster must use the Equalizer as the default gateway for
routing.
Also note that for Layer 4 clusters that have the spoof flag disabled, a sticky
record is maintained for each connection whether Layer 4 sticky connections
are enabled or not. See "Enabling Sticky Connections" on page 129.]
When enabled, Equalizer forwards packets to the server in such a way that
the server responds directly to the client, rather than through Equalizer. This
option requires special configuration on the servers in the cluster; see
"Configuring Direct Server Return (DSR)" on page 177 before enabling this
option. The spoof option must also be enabled when this option is enabled.
Working with Virtual Clusters
123