A possibility to accept connections from unknown peers

[mensonen]

rfc6733 5.3 describes incoming connections from unknown peers being a possibility:

If the local policy permits receiving CERs from unknown hosts, a successful CEA MAY be returned. If a CER from an unknown peer is answered with a successful CEA, the lifetime of the peer entry is equal to the lifetime of the transport connection. In case of a transport failure, all the pending transactions destined to the unknown peer can be discarded.

Currently only connections from known peers are permitted.

If unknown peers will be implemented, the application routing needs to be amended with a possibility for an application to communicate with "any" peer.