USR-G808 User Manual
Technical Support:
Jinan USR IOT Technology Limited
www.usriot.com
41
Diagram3.2.12.4-3 OPENVPN Advanced Settings
Advance parameters introduce
1. Encryption standard:tunnel encryption including 5 ways:Blowfish CBC
,
AES-128 CBC
,
AES-192 CBC
,
AES-256
CBC
,
AES-512 CBC
2. Using LZO compression: enable or disable data transport using LZO compression
3. Keepalive set: default is 10 120
4. TUN MTU set: setting the value of MTU
5. TCP MSS: the maximum of the section of the TCP data.
6. TLS auth key: authority key of the TLS, the certification of safety transmission
7. Public server CA certification: server and client public CA certification
8. Public client certification: client certification
9. Client private key: client private key.
Note:
Before the connection of the client and server, CA certification, client certification, client private, TLS
certification key, the server should provide these.
3.2.12.5. GRE
GRE(Generic Routing Encapsulation) protocol is the third layer tunnel protocol of VPN which adopts Tunnel
technology. It can encapsulate some network layer protocols data(such as IP, IPX) to transmit on another network layer
protocol. User can add a GRE interface and configure by Web Server as follow:
Create interface: