Connecting three sites using IPSec tunnels

So far, we have discussed how to connect the two sites through an IPSec tunnel. Most readers will be satisfied with that, as these scenarios cover most real-life situations. However, we may have a need to interconnect three or more sites using the IPSec tunnels,

Although rare, these scenarios are possible. However, we need to plan everything carefully, as we will need more IPSec policies between routers. Therefore, I will describe here how to connect the “road warrior” users with distant site.

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L2TP/IPSec for Road Warriors

In the sixth part of our Mikrotik IPSec series, we will cover the L2TP/IPSec scenario. This scenario is used to support “road warriors”, employees that need to work from home or while on the road.

This scenario is similar in some elements with the previous scenario, when one side is behind a NAT device. The main difference is that we use L2TP as the basic protocol and therefore we need to protect this VPN tunnel without encryption.

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