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Re: [Connection Sharing] Suggested setting for a Zyxel Zywall US
said by Aranarth:Specifically to SSL VPN. The USG50 model comes with 2 free concurrent users with pay upgrade option to 5 concurrent users.
If anyone is familiar with this router and knows of any potential pitfalls to watch out for, please let me know.
The SSL VPN is currently lacking DPD (Dead Peer Detection) (IPSec & L2TP have it). Meaning if your SSL user does not disconnect gracefully or the idle timeout doesn't expire (i.e. remote user just closes his/her laptop lid and the machine goes to sleep) the user will remain active on USG side and soon you run out of available licenses to login and will get error "Out of concurrent licenses" even though you may have zero real users logged in.
I've reported this to ZyXel, apparently it has been logged as issue with engineering but there's not resolution ETA at the moment.