Which Client-to-Site Protocol is recommended for Performance?

Boiler

currently, my users use the SSL VPN (Zywall 110) to remotely connect to my network and then map several network drives via batch script. those shared folders are on a NAS. in those folders they acess word and excel files. the issue is that working with those files is very slow. question is....is there a difference regarding performance between the different VPN protocols (SSL, IPSec) or are there maybe things i could do to improve performance?

thx for any help!

Jeremylin

Have you enabled any UTM service?
Per my understanding, the throughput of L2TP and Ipsec are better than SSL VPN.

Boiler

thx for your answer!
i have no UTM services enabled at all.

i tried the Zyxel IPSec client and it seemed indeed to be a bit faster when accessing files on the remote NAS.

however, i can't use the IPSec client since i can not assign multiple remote subnets. the SSL VPN on the other hand allows me to do that and unfortunately, this is a must :-(

Jeremylin

"The multiple remote subnets". You mentioned the subnet can be selected on Network list on SSL VPN page?

Boiler

correct. on the zywall you can choose to which subnets a SSL user has access to. 

Jeremylin

Configure remote subnet widely which include multiple IP address, so client can access it.