I need to share the company's internal network with a remote device.
The device needs to communicate with a server to transfer data. The only internet connection at this location is the operator's 4G. But they mask the public IP, so I can't close a site-to-site tunnel.
Please do you know of another vpn solution for this case?
MitatOnge Cybersecurity Overlord ✭✭✭Hi @isaiasants
You can configure as agrasive mode ipsec VPN.
Check below link.
Ajishlal Community Legend ✭✭✭✭✭
In order to establish the Ipsec VPN tunnel through 4G modem, You would have to open the following ports from 4G modem to Sonicwall Wan interface; ( Once you open below ports, follow the above KB shared by Mitatonge)
1) IKE (UDP 500): This is the port used for the initial negotiation of the IPsec connection.
2) ESP (IP 50): This is the port used for the Encapsulating Security Payload, which provides the encryption and integrity for the data being sent over the VPN connection.
3) NAT-T (UDP 4500): This is the port used for NAT Traversal, which allows IPsec VPNs to work across networks that use Network Address Translation.1