IQRouter not sends packet without specifying resource in jid

Openfire Openfire Dev
1

Why does IQRouter not sends packet without specifying resource in jid ?

This jid

    username@server/resource

works, and this

    username@server

not.

Is there any opportunity to send user a packet? Thanks.

2

Because IQ stanzas addressed to a bare JID are handled on behalf of the server and are not delivered to the user.

This is specified in XMPP: Extensible Messaging and Presence Protocol (XMPP): Core

For an IQ stanza, the server MUST handle it directly on behalf of the intended recipient.