Federated tables and triggers
You should not put any faith in triggers when it comes to federated tables. You are better off creating a temporary trigger on the real MyISAM table on the source side.

Picture this:

On Server S1
- T1 is MyISAM table
- T2 is FEDERATED table to T1 over on S2

Do the following:


Create the Trigger on T1 to insert a row into T2
Insert Data into T1
Drop the Trigger


ALTERNATIVE

You would be way better off using MySQL Replication as follows:


S1 is the Master
S2 is the Slave
Set replicate-do-table=db1.T1 in my.cnf on S2


This would automatically do all DML against that table provided you replicate to the same named table.