Site to site VPN but neither gateway can ssh

[els]

I have ISPEC VPN tunnels established between two pfSense firewalls and computers on both sides can see each other however the firewalls don't seem to see each other (via ping).  I tried to ssh on one firewall to another and it didn't work.  I'm guessing there's additional configuration that needs to be done before both firewalls can see each other?  Trying to implement a script on one firewall that utilizes scp to copy a certain files at regular interval.

Thanks,
Ethan

[jimp]

http://doc.pfsense.org/index.php/Why_can't_I_query_SNMP,_use_syslog,_NTP,_or_other_services_initiated_by_the_firewall_itself_over_IPsec_VPN%3F