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Hongdian Corporation
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H792x 3G/4G Router User Manual
Figure 5-12
Switch to PPTP when L2TP fail
5.5
VPN
Introduction
VPN, virtual private network, a technology based on Internet, now H7960 3G/4G router
supports L2TP/PPTP/GRE/IPIP/IPSec of VPN.
L2TP used to build a virtual private network, after H7960 3G/4G Router connect to
company NAS server, PC under H7960 could visit company network like visiting the local
area network.
Let us check a setting example:
Figure 5-13
Build IPSec
PC1 connect H7960 then build IPSEC link by VPN function of H7960 with company router.
I assume using IPSec tunnel mode, H7960 end local network 192.168.86.1/24, company
server end 192.168.99.1/24, by IPSEC, two LAN could communicate.