You add subnet side rules on the Subnet Side Rules page.

These options are available for configuring subnet side rules:

Add a Subnet Side Rule displays the controls to create a subnet side rule.

Insert Rule At selects Start, End, or a rule number from the drop-down list. SteelHeads evaluate rules in numerical order starting with rule 1. If the conditions set in the rule match, then the rule is applied, and the system moves on to the next packet. If the conditions set in the rule don’t match, the system consults the next rule. For example, if the conditions of rule 1 don’t match, rule 2 is consulted. If rule 2 matches the conditions, it is applied, and no further rules are consulted.

Subnet specifies the subnet. The subnet can be either an IPv4 or an IPv6 address. Use the following format:

<ip address>/<subnet mask>

xxx.xxx.xxx.xxx/xx (IPv4)

x:x:x:x/xxx (IPv6)

Subnet is on the LAN side of this appliance specifies that the subnet is on the LAN side of the device. In virtual in-path configurations, all traffic is flowing in and out of one physical interface.

Subnet is on the WAN side of this appliance specifies that the subnet is on the WAN side of the device. In virtual in-path configurations, all traffic is flowing in and out of one physical interface.

Add adds the rule to the subnet map table. The Management Console redisplays the subnet map table and applies your changes to the running configuration, which is stored in memory.

You can’t delete the default rule that optimizes all remaining WAN side traffic that has not been selected by another rule. This rule is always listed last.