VPN with zywall 2 plus behind nat/dhcp davolink dsl modem

VPN with zywall 2 plus behind nat/dhcp davolink dsl modem
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Forums » Up and Running » Virtual Private Networking » VPN with zywall 2 plus behind nat/dhcp davolink dsl modem

tfp2 @ 28th Jul 05:36AM:
VPN with zywall 2 plus behind nat/dhcp davolink dsl modem

Hello everybody,

I've searched through this and other fora, but haven't found a solution yet. I'm trying to set up a Zyxel Zywall 2 Plus firewall/vpn server behind a Davolink DSL/Router in our office.

-- problem --
Goal is to be able to access the office LAN through vpn with the greenbow vpn client. The main problem is that -due to ISP restrictions- the Davolink can't be set in Bridge mode nor can NAT/Dhcp be turned off.

-- solution? --
Before we start the hassle of switching ISPs, I would like to hear from you experts if the following set up has a chance to work:
- DSL line is connected to WAN port of the davolink.
- Zywall's WAN port is connect to one of the LAN ports on Davolink modem
- Davolink (192.168.2.1) has DMZ set to Zywall (192.168.2.2)
- Zywall is put in bridge mode
- PC's in LAN are connected to LAN ports of Zywall
- Zywall's firewall and VPN are set up
- Greenbow client connects through Davolink with Zywall vpn server.

Am I thinking in the right direction here?

Thank you very much!
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