Use alter route with  set password to change the RSI user password for an existing direct route.
- Suspend each direct route from the source Replication Server
by entering:
 suspend route to dest_replication_server 
 
- At the source Replication Server, enter the following
command where dest_replication_server is
the destination Replication Server for the route you are altering,
and passwd is the password to use for the RSI
user login name:
 alter route to dest_replication_server
set password passwd 
 
- Resume each suspended route from the source by entering:
 resume route to dest_replication_server