I have some problem about SAP IDOC listener

[Ritthipo]

Hi, I have some questions about SAP IDOC listener

1. What does it mean Router string in IDOC listener and how to use it?
   https://docs-snaplogic.atlassian.net/wiki/spaces/SD/pages/1438551/SAP+IDoc+Listener
   

2. Can I monitor the Connection between SAP gateway and snaplogic ?