This article applies to Venn routers using WW cards establishing PepVpn tunnels to a Fusionhub Server configured behind a firewall.

Some Firewalls in the path can lead to pepvpn traffic blocking due to subnets used by WW cards.

Intended Audience

This article is intended for IT Managers, IT staff and Project Managers.

In This Task

- Summary of issue

- Solution

        1. Traffic/Port Blocking

        2. Geolocalisation

- Related articles

- Troubleshooting


This article applies when Using WW cards used in Venn routers.

When using WW Sim Cards Public IP's that are presented to Customers are private addresses.

This could lead Firewalls on Customers sites to block  prevent PepVpn tunnels to establish.

This blocking may be due to port blocking, IPS blocking and/or Geolocation blocking.


1. Traffic/Port blocking

Add rules in firewall allowing following WW subnets : 

To increase security those rules can be restricted to ports on wich which PepVpn works (Usually IP 32015 and UDP 4500, 4501 or 4505).

2. Geolocalisation :

Trafic may be blocked by geolocalisation rules. Depending on firewalls, exceptions for those subnets have to be implemented or UK has to be authorized.

Related Articles 



For troubleshooting please contact our support on or +32 2 318 48 25