Compex Technologies NP25G 6C - Manual (Page 9)

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Virtual Private Network (VPN) pass-through
The router is an advanced device that will recognize tunneled
packets (IPSec , PPTP) for VPN connections and allow them to pass
through.
WDS2
WDS2 (Wireless Distributed System 2) links up access points to
create a wider network in which mobile users can roam while still
staying connected to available network resources.