Just to point you in the right direction .... by default, sshd will listen on port 22. You will want to change this. You can set the value of sshd_flags in /etc/rc.conf.local if you wish, but best practice would be to edit /etc/ssh/sshd_config and add a custom ListenAddress, along with other customizations you might make (such as disallowing root login, which is enabled at installation time only to make post-install provisioning easier remotely).
Here are some of my own changes to sshd_config in one of my servers:
Code:
PermitRootLogin no
PasswordAuthentication no
ClientAliveInterval 15
ClientAliveCountMax 3
X11Forwarding yes
AddressFamily inet
KbdInteractiveAuthentication yes