ssh-agent and ssh-add on FreeBSD

[bluethundr]

Hey list

 On my CentOS machines I usually keep track of my rsa key with
ssh-agent, ssh-add and keychain

 I would like to know

a) how to install keychain under FreeBSD
and
b) how to fix this error:

[bluethundr at LBSD2:~]#ssh sum1
Enter passphrase for key '/home/bluethundr/.ssh/id_rsa':
[bluethundr at LBSD2:~]#exec ssh-agent bash
[bluethundr at LBSD2:~]#ssh-add
Could not open a connection to your authentication agent.a


Whenever I try to ssh to another box on the network (with a homedir
shared amongst all centos  and FreeBSD machines) it prompts me for my
passphrase. Usually on the CentOS boxes exec ssh-agent bash does the
trick. Anyone have any idea why this isn't working on the FreeBSD box?

thanks!!

-- 
Here's my RSA Public key:
gpg --keyserver pgp.mit.edu --recv-keys B6D6EAC3