SSL VPN DHCP Lease Time?

[jadavies.jr]

So we have a UC560 with SSL VPN setup and it's working well with a SPA525g phone.  I only have a DHCP pool of 192.168.0.25-29 for VPN users and the phone.  Nobody but myself uses the VPN besides the phone itself and it seems like whenever the phone uses an IP address it just climbs the latter to the next IP address (when rebooted) until it runs out.  The system doesn't appear to release the unused lease after the phone jumps to the next number.

Is there a way to shorten the lease time?  It almost seems permanent.

Thanks!

[mpyhala · Accepted solution]

James,

The UC560 should drop the unused IP from the pool after 40 minutes, making the IP available again. If you rebooted 4 times within 40 minutes you could possibly run out of IPs. If this is a concern you should increase the pool to the maximum of 20 for SSL VPN.

- Marty

[jadavies.jr]

Thanks! very helpful information.  I was testing the phone pretty frequently and it's possible I ran out.  I increased the pool to 10 just in case.  I don't see it being an issue.