We recently purchased Peplink routers 580, 380, and 20 for remote offices and home use. SpeedFusion works fine between 580s and 380s. Nevertheless, we have not been able to get IPSec VPN working between 580 or 380 and the 20. From reading the specs, we thought that is possible. We have been able to configure and use an IPSec VPN tunnel between a 580 and a Cisco WRVS4400N, with the 580 having a site-to-site connection to a 380.