User`s guide

Configure User Access Control
Chapter 8 Users, Security, and Authentication 146
Sniff Session
A sniff session enables multiple users to access a single serial port for
viewing the data stream. Anyone who is registered for a sniff session can
access a specific serial port — even if someone else is using the port. The
Digi Passport unit supports multiple concurrent sniff sessions.
Sniff session mode has four options: disabled, input, output, and both.
Configure the sniff session modes per port on the serial port configuration
page.
log in
port 3
log in
port 3
Network (Ethernet)
serial
Sniff Session
Main Session
Port 3
(Read only access)
(Read/write access)