Restrict SSL VPN connections to specific devices

SnarfySplat

So here is the issue. I have users all over Canada (And sometimes other countries) They SSL VPN into one of three sites using company provided computers. What we are experiencing is a HUGE, volume of foreign actors successfully connecting to our VPN portals. (Sonicwall Public VPN IPs) Where they fail is the Radius authentication (Luckily). I want to stop them.

Considered deployed SSL Certificates, but I see SonicWALL is not capable of doing that.

Other suggestions include MAC address filtering, but that is a huge management chore.

Any suggestions ? (SMA not an option)

TKWITS

You might want to read the discussion going on here:

https://community.sonicwall.com/technology-and-support/discussion/5909/is-anyone-getting-hammered-by-password-spray-attacks-recently

But to answer the question posed in the subject, no you cannot.