When a new in-path interface is activated in an existing Steelhead appliance and no optimization via that interface is happening, check out the following pre-requisites on the Steelhead appliance:
The IP address, subnet mask, default gateway and VLAN tag ID for the in-path interface has been configured under Configure -> Networking -> In-path Interfaces.
In-path optimization has been enabled for that in-path interface under Configure -> Optimization -> General.
On the CLI, check that the in-path interface is enabled with the
show in-path
command:
Figure 4.18. Enabled in-path interfaces for optimization
SH # show in-path Enabled: yes Kickoff: no L4/PBR/WCCP/Interceptor: no Maintain Multipath: no Main Interface: inpath0_0 Asymmetric Routing Detection: yes Asymmetric Routing Pass Through: yes Optimizations Enabled On: inpath0_0 VLAN Tag IDs: inpath0_0: 0