I tried running mmr.pl script to setup Multi-master Replication and the script went fine:

 

[root@389-supplier opt]# ./mmr.pl --host1 389-supplier.sap --host2 389-consumer.sap --host1_id 1 --host2_id 2 --bindpw '!nfra1sst' --repmanpw '!nfra1sst' --create
adding to 389-supplier.sap -> cn=changelog5,cn=config
         -> already exists

adding to 389-supplier.sap -> cn=repman,cn=config
adding to 389-supplier.sap -> cn=replica,cn="o=netscaperoot",cn=mapping tree,cn=config
adding to 389-consumer.sap -> cn=changelog5,cn=config
         -> already exists

adding to 389-consumer.sap -> cn=repman,cn=config
adding to 389-consumer.sap -> cn=replica,cn="o=netscaperoot",cn=mapping tree,cn=config
adding to 389-supplier.sap -> plaintext replication 389-supplier.sap -> 389-consumer.sap
adding to 389-consumer.sap -> plaintext replication 389-consumer.sap -> 389-supplier.sap
initializing replication 389-supplier.sap -> 389-consumer.sap (port 389)
[root@389-supplier opt]#

To check if it worked fine. I checked the consumer logs:

and found few errors:

 

root@389-consumer ~]# tail -f /var/log/dirsrv/slapd-389-consumer/errors
[29/Jan/2010:03:04:54 +051800] NSMMReplicationPlugin - agmt="cn="Replication to 389-supplier.sap"" (389-supplier:389): Replica has a different generation ID than the local data.
[29/Jan/2010:03:04:55 +051800] NSMMReplicationPlugin - multimaster_be_state_change: replica o=netscaperoot is going offline; disabling replication
[29/Jan/2010:03:04:57 +051800] - WARNING: Import is running with nsslapd-db-private-import-mem on; No other process is allowed to access the database
[29/Jan/2010:03:04:59 +051800] - import NetscapeRoot: Workers finished; cleaning up...
[29/Jan/2010:03:04:59 +051800] - import NetscapeRoot: Workers cleaned up.
[29/Jan/2010:03:04:59 +051800] - import NetscapeRoot: Indexing complete.  Post-processing...
[29/Jan/2010:03:04:59 +051800] - import NetscapeRoot: Flushing caches...
[29/Jan/2010:03:04:59 +051800] - import NetscapeRoot: Closing files...
[29/Jan/2010:03:05:00 +051800] - import NetscapeRoot: Import complete.  Processed 107 entries in 3 seconds. (35.67 entries/sec)
[29/Jan/2010:03:05:00 +051800] NSMMReplicationPlugin - multimaster_be_state_change: replica o=netscaperoot is coming online; enabling replication
----------------------------------------------------------------------
[root@389-consumer ~]#

 

I tried adding a User under ou=People and it dint take effect on the consumer machine.