federated enabled but not working

[sakthi sridhar]

Hi,
Federated not working after enabled in mysql config file

Config File

[mysqld]
federated

after enabled and i restart the server

in SQLYog

show engines;

Engine Support Comment
---------- ------- ----------------------------------------------------------------
MyISAM DEFAULT Default engine as of MySQL 3.23 with great performance
MEMORY YES Hash based, stored in memory, useful for temporary tables
InnoDB YES Supports transactions, row-level locking, and foreign keys
BerkeleyDB YES Supports transactions and page-level locking
BLACKHOLE NO /dev/null storage engine (anything you write to it disappears)
EXAMPLE NO Example storage engine
ARCHIVE NO Archive storage engine
CSV NO CSV storage engine
ndbcluster NO Clustered, fault-tolerant, memory-based tables
FEDERATED NO Federated MySQL storage engine
MRG_MYISAM YES Collection of identical MyISAM tables
ISAM NO Obsolete storage engine

still FEDERATED not enabled.

please suggest to slove this problem..