Use alter route to change the security settings for a route.
alter route to dest_replication_server { ... set password to 'passwd' | set security_mechanism to 'mechanism_name' | set security_parameter to { 'required' | 'not_required' }}
To change the security parameters of a route, log in to Replication Server and perform these steps at the Replication Server:
alter route to TOKYO_RS set username 'TOKYO_rsi_user'
alter route to TOKYO_RS set password 'TOKYO_rsi_pw'
alter route to TOKYO_RS set unified_login to 'not_required'
alter route to TOKYO_RS set msg_integrity to 'required'