IBM SC41-5420-04, Tcp/Ip Configuration And Reference

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Preferred binding interface
The preferred binding interface allows administrators to choose which of
the TCP/IP interfaces that they prefer the route to be bound to or on. This
provides the administrator with more flexibility to route traffic over a
specific interface. The interface is preferred because the route is bound to
the indicated interface if the interface is active. If the indicated interface is
not active, then a best-match-first algorithm is used in determining which
interface the route is bound.
In Figure 5, a preferred binding interface of *NONE has been defined. By
using this definition, the user allows the TCP/IP protocol stack to choose
an interface to bind this route to, using a best-match-first algorithm.
Adding TCP/IP routes
You must define routes for any TCP/IP network, including subnetworks,
with which you want to communicate. You do not need to define routes
for the TCP/IP network that your server is directly attached to when you
are using an iSeries adapter.
Manual configuration of the routes that tell TCP/IP how to reach the local
networks is not required. iSeries TCP/IP generates these routes
automatically from the configuration information for the interfaces every
time TCP/IP is started. In other words, the direct route to the network,
which has an interface attached, is automatically created when you add the
interface.
To display all routing entries, including direct routes, use the Network
Status (NETSTAT) command after starting TCP/IP.
To add a route, type option 2 on the Configure TCP/IP menu. The Work
with TCP/IP Routes display (Figure 5) is shown.
Type option 1 (Add) at the input-capable top list entry on that display to
go to the Add TCP/IP Route (ADDTCPRTE) display, as shown in Figure 6
on page 15.
(To go directly to this display, type the
ADDTCPRTE
command on any
command line and press F4.)
Work with TCP/IP Routes
System: SYSNAM890
Type options, press Enter.
1=Add 2=Change 4=Remove 5=Display
Route Subnet Next Preferred
Opt Destination Mask Hop Interface
_ ________________ _______________ _______________
_ *DFTROUTE *NONE 9.4.73.193 *NONE
Figure 5. Work with TCP/IP Routes Display
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OS/400 TCP/IP Configuration and Reference V5R1