Configure VPN with Modem router

[r.randriamanana]

Hi All,

How to configure modem/router so that all VPN traffic pass through it. there is no VPN option tab on the Modem/router. please see the files attached to help you.

Thanks in advance

Regards,

Rja

[Jennifer Halim]

If there is no access rules/firewall configured on the modem/router, the VPN traffic should pass through just fine.

Are you configuring any NATing on the modem/router? Also, is that site to site ipsec vpn?

[r.randriamanana]

Hi Halim,

Thanks for your answer

The modem is beawan, there is a nat config inside the modem just to forward ssh port to the local network, yes site to site

Rgds,

rja

[Jennifer Halim]

In that case, you would also need to configure port forward for the IPSec VPN traffic.

Do you know if NAT-T is enabled on the IPSec VPN tunnel? if yes, then you would need to port forward the following:

UDP/500 and UDP/4500

Otherwise, if your ipsec vpn is using other ports, you would need to port forward that accordingly.

If NAT-T is not enabled, then you would need to configure static NAT for your VPN server ip address.

[r.randriamanana]

both router are 2821, NAT-T is not enable, I will try and go back to you