Moxa OnCell 5104-HSPA-T [50/67] What are vpns

Moxa OnCell 5104-HSPA [50/67] What are vpns
OnCell 5000 Series Introduction and Configuring VPN
6-2
What Are VPNs?
Computers that are part of a VPN use a second, “virtual” IP address to connect to the Internet. Instead of
running across a single private network, some of the links between nodes that are part of a VPN use open
network connections or virtual circuits on a larger network, such as the Internet. With the help of VPNs, cellular
devices acting as a VPN client can initiate a connection with a VPN server. Once the connection is established,
cellular devices can communicate with other network devices on the same private network.
OnCell VPN Specifications
OnCell IPSec provides security in one scenario with Gateway-to-gateway topology
OnCell initiates VPN connection to VPN Server
OnCell IPSec operates in Tunnel mode with IPsec VPN tunnel
Manual Key/ESP, IKE/PSK
DES/3DES/AES128/AES192/AES256 encryption
MD5/SHA1 authentication
IPsec NAT traversal, Anti-Replay, and PFS (Perfect Forwarding Secrecy).
Example: Gateway to Gateway Network Topology
Figure: Gateway to gateway connection between OnCell and IPSec server

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