Defining Virtual Ports
You can define up to 16 virtual ports (i.e. network interfaces) per BSR and SPR/IDR
when operating in the routing mode. The virtual ports are defined by IP address and
subnet mask. This is useful when using third-party external routers (see IntraCom
Gateways in Chapter 23, "Defining Security") that are on different subnets to the
BSR or SPR.
The procedure described in this chapter is based on the configuration displayed in
the figure below.
Figure
13-1: Configuration example for defining BSR's virtual ports
In the above configuration, the BSR provides two virtual (i.e. logical) IP network
interfaces with a third-party router. For example, BSR's logical ports 10.0.0.2 and
10.0.1.2 interfaces with the router's 10.0.0.1 and 10.0.1.1 port interfaces
respectively. VLANs can be assigned to each of these virtual port interfaces. This is
useful when implementing a gateway per VLAN application where SPR VLAN
traffic is routed to these interfaces (i.e. gateways).
Note:
For a detailed description on defining gateways per VLAN, see Chapter
14, "Defining VLANs".
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