Configuration Mode Commands : SteelHead Configuration Commands : In-Path and Virtual In-Path Support Commands : in-path interface enable
  
in-path interface enable
Enables the in-path interface for optimization.
Syntax
[no] in-path interface <interface> enable
Parameters
<interface>
IP address of the in-path interface. For example, inpath0_0.
Usage
This command is only useful when there are multiple NIC cards enabled (for example, with Four-Port LX Single Mode Fiber Gigabit-Ethernet PCI-E cards).
You can force master/backup pairs and connection forwarding connections from a particular interface.
Suppose you have a quad deployment in which you have two SteelHead master/backup pairs at different locations (with the master closest to the LAN) and each SteelHead points to the remote SteelHeads as connection forwarding neighbors.
In addition, suppose you want to use only fiber interfaces and not the copper interface built into the system. To ensure that the TCP connection for the master/backup pair (default on port 7820) is sourced from the interface you want, you must ensure that any lower in-path interfaces are disabled for usage. Thus, if you do not want to use the copper interfaces built into the SteelHead (that is, inpath0_0 and inpath0_1), but a fiber interface (inpath1_0), you would execute:
no in-path interface inpath0_0 enable
no in-path interface inpath0_1 enable
Make sure that the following text is displayed in the running configuration (show configuration running):
in-path interface inpath1_0 enable
Then define the failover buddy address to be the inpath1_0 of the other SteelHead in the master/backup pair. For details about master and backup commands, see failover enable and failover master.
The no command option disables the in-path interface.
Example
amnesiac (config) # in-path interface inpath0_0 enable
Product
Interceptor, SteelHead CX, SteelHead EX, SteelHead-v, SteelHead-c
Related Commands
show ip