LANGUAGE SUMMARY How do I configure the ZyWALL for a L2TP server behind NAT?
ARTICLE ID 015090 TYPE Application / Configuration Example
LEVEL Public FIRMWARE 4.13
VIEWS 2727 VOTES 5
TECHNOLOGY MODEL USG110,USG1100,USG1900 (view more model name)

QUESTION


ANSWER


SCENARIO DESCRIPTION:

How do I configure the ZyWALL for a L2TP server behind NAT?


SETUP/STEP BY STEP PROCEDURE:

Topology:

Network Conditions:

Router WAN IP: 59.124.163.151

ZyWALL WAN IP: 192.168.10.33

 

Configuration on the router:

Add a NAT rule for the router.

Allow L2TP services.

L2TP server: 192.168.10.33

L2TP service: IKE, NATT, L2TP-UDP

Configuration on the ZyWALL/USG:

IPSec VPN Gateway

IPSec VPN Connection:

The local policy is the NAT public IP address.

L2TP VPN:

Assign a pool for the L2TP clients.


VERIFICATION:

Use a smartphone or a PC to establish a L2TP VPN connection the to ZyWALL/USG.

Configure the NAT's public IP address as the L2TP server address on the client.


PROBLEM DESCRIPTION:


SOLUTION:


CONDITION/REPRODUCE PROCEDURE:

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