recomendations on VPN-tunnel btwn offices

Hi,

Have a costumer with 100+Mbit/s internet on to diffrent offices, both with rb700-series routers.
What VPN-tunnel do you recomend to run between the offices.

Setup
Both sites running PPTP-vpn for roadwarriors (on mikrotik routers)
Both sites has several static WAN adresses
The sites has diffrent local subnets
Not alot of end users, about 10 at each office.

Link to mikrotik documentation or configuration examples appreciated, going to do the setup in the weekend, so just have tomorrow to test it.

Have a look at these.

http://wiki.mikrotik.com/wiki/VPN_(any_type)_between_2_Mikrotik_routers_and_no_static_IP_addresses
http://wiki.mikrotik.com/wiki/Manual:Interface/PPTP#Site-to-Site_PPTP
http://wiki.mikrotik.com/wiki/Manual:Interface/L2TP#Site-to-Site_L2TP

Thanks, will look in to those and also http://wiki.mikrotik.com/wiki/Manual:IP/IPsec#Site_to_Site_IpSec_Tunnel

The routers we use is RB751G-2HnD and RB750GL. They have quite limited hardware recourses, do you think one or the other can reach an early throughput limit considering that there are around 100Mbit available between the routers?

I would not recommend using IPSec with the 700 series boards. You will not get anything near your 100mbit connection. Stick with PPTP or L2TP. If you need IPSec you should get two RB1100AHx2.

Thanks a lot for the input, important notice. Good to know for the future.