Junit 3 suite setup tear down

Hi
At my company we have alot of automated test cases and in all our
suite we have a setup testcase and a teardown test case where we setup
network connection that takes some time and can not be done in every TC. ,
But i think that there should exist a suite setup and a teardown and
not be in a setup/teardown TC.
Are there any why of doing this or how could i best be solve this by
extending TestSuite?

Regards Lars