Configuring LSNAT

This section provides details for the configuration of LSNAT on the S-Series products.

Default LSNAT Parameters lists LSNAT parameters and their default values.

Default LSNAT Parameters

Parameter	Description	Default Value
Port Number (FTP)	The port number for the FTP control port for all IPv4 virtual servers. (IPv4 only)	21
Port Number (TFTP)	The port number for the TFTP control port for all virtual servers	69
Predictor	The load balancing algorithm for this server farm.	Round Robin
Faildetect probe one and two	Default probe for server load balancing faildetect probe one and two.	probe one: $slb_default probe two: empty
Faildetect Type	Specifies whether the current fail detection configuration is active (probe) or inactive (none) for the real server context.	probe
FIN/RST idle time	The idle time in seconds after the TCP finish reset (FIN/RST) is observed on an IPv4 or IPv6 NAT binding.	3 seconds
Match Source-Port Binding Mode	Use this command to set the source port to virtual server binding behavior for this virtual server.	exact
Maximum Connections	Specifies the maximum number of connections allowed to an LSNAT real server.	Unlimited
Weight	Specifies a real server weight value for the weighted round robin load balancing algorithm.	1
Service Type	A special service type, such as FTP or TFTP, if the virtual port number is different than the default for that service.	None
Stickiness Type	The type of stickiness to use for the virtual server.	None
Sticky Timeout	Specifies the age out interval for sticky entries that have no associated bindings.	SIP: 7200 seconds SIP DIP-PORT: 7200 seconds

LSNAT Resource Limits lists LSNAT resource limits.

LSNAT Resource Limits

Resource	S-Series	SSA
Bindings	65536	131072
Reals	800	800
Server Farms	400	400
Sticky Entries	65536	65536
VIP Addresses	1000	1000
Virtual Servers	500	500