Subject Gating

The router configuration determines the set of public subjects that can potentially pass between the routing daemon and the local network:

Export subjects can flow out from the local network to the routing daemon, and from there to other networks.
Import subjects can flow into the local network from the routing daemon.

Gating of System Subjects

As a rule, routing daemons do not forward Rendezvous system subjects (such as _RV.> and _RVRD.>). If you specify these subjects for export or import, the router ignores them.

However, system subjects required for feature operation (such as _RVCM.> and _RVFT.>) are the exception to this rule. Routing daemons do forward these subjects, and you can specify them for export and import.

Point-to-Point Gating

Routing daemons automatically transmit point-to-point messages as appropriate:

When a routing daemon receives a point-to-point message whose destination is elsewhere in the global routing table, it forwards that message to the routing daemon that serves the destination network.
When a routing daemon receives a point-to-point message whose destination is in one of its local networks, it forwards that message directly to rvd on the destination computer.
Administrators do not need to explicitly import or export inbox subject names.