Vigor3900 to Teltonika RUT950 Router - GRE Tunnel

Support Model : Vigor3900Vigor2960
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Generic Routing Encapsulation is a simple IP packet encapsulation protocol. A GRE tunnel is used when sending the IP packets from one network to another, without being parsed by any intervening routers. Vigor Routers support GRE tunnel also and this document will introduce how to set up GRE tunnel between Vigor Router and Teltonika RUT950.

(This article applies to Vigor3900 and Vigor2960, for other models, please refer to the article here.)


Teltonika RUT950 Router Setup

1. Configure the LAN network.

2.Go to GRE Tunnel page and edit the profile as follows:

a. Enter Vigor Router's WAN IP as the Remote endpoint IP address

b. Enter Vigor Router's LAN network and netmask in Remote network and Remote network netmask field

c. Enter Local Tunnel IP (this is the GRE IP) and the Local tunnel netmask as 32

d. Enter MTU 1400


 3. Select Disable NAT in GRE Tunnel Configuration



Vigor 3900Setup

1.Go to VPN and Remote Access >> VPN Profiles >> GRE page, click Add and then edit the profile as follows.

a. Enter Profile name and Enable this profile

b. Select the WAN Interface for creating the GRE tunnel

c. Enter Teltonika RUT950's WAN IP as the Remote IP

d. Enter the GRE IP (the GRE IP of Teltonika RUT950 router)

e. Enter Remote Network IP/Mask as the Teltonika RUT950's LAN network.


2. GRE tunnel will be up as soon as we finish the configurations. We may go to VPN and Remote Access >> Connection Management page to check the tunnel status.


3. We may use Ping tool to check the connectivity on Vigor3900 or the Teltonika RUT950 router.


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