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| Generic Routing Encapsulation (GRE) is a tunneling protocol that can encapsulate a wide variety of network layer protocols inside virtual point-to-point links over an Internet Protocol network. | | Generic Routing Encapsulation (GRE) is a tunneling protocol that can encapsulate a wide variety of network layer protocols inside virtual point-to-point links over an Internet Protocol network. |
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− | This article provides an extensive configuration example with details on how to create a tunnel connection between two GRE Tunnel instances, one of which is configured on RUTxxx router and the second one on CISCO device. | + | This article provides an extensive configuration example with details on how to create a tunnel connection between two GRE Tunnel instances, one of which is configured on RUTxxx router and the second one on Cisco device. |
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| ==Prerequisites== | | ==Prerequisites== |
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| * One RUTxxx router | | * One RUTxxx router |
− | * One Cisco router | + | * One Cisco router (this configuration example was created using Cisco RV340W) |
| * A PC to configure the routers | | * A PC to configure the routers |
| * Both routers must have a Public Static or Public Dynamic IP addresses | | * Both routers must have a Public Static or Public Dynamic IP addresses |
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− | [[File:Networking_rutxxx_configuration_example_gre_topology_v1.png|border|class=tlt-border]] | + | [[File:Networking_rutxxx_configuration_example_gre_topology_v2.png|border|class=tlt-border|1100x1100px]] |
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| ==RUT configuration== | | ==RUT configuration== |
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| #'''Enable''' instance. | | #'''Enable''' instance. |
| #Select '''Tunnel source''' (select your WAN interface). | | #Select '''Tunnel source''' (select your WAN interface). |
− | #Enter '''Remote endpoint IP address''' (CISCO WAN IP). | + | #Enter '''Remote endpoint IP address''' (Cisco WAN IP). |
| #Set '''MTU''' to '''1440'''. | | #Set '''MTU''' to '''1440'''. |
| #Write '''Local GRE interface IP address''' (create GRE tunnel IP address or just use the same as in the example). | | #Write '''Local GRE interface IP address''' (create GRE tunnel IP address or just use the same as in the example). |
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| #Enter '''Destination''' (RUT WAN IP). | | #Enter '''Destination''' (RUT WAN IP). |
| #Write '''IP Address Of GRE Tunnel''' (create GRE tunnel IP address or just use the same as in the example). | | #Write '''IP Address Of GRE Tunnel''' (create GRE tunnel IP address or just use the same as in the example). |
− | #Write '''Subnet Mask''' (create GRE tunnel netmask or just use the same as in the example) | + | #Write '''Subnet Mask''' (create GRE tunnel netmask or just use the same as in the example). |
| #Set '''MTU''' to '''1440'''. | | #Set '''MTU''' to '''1440'''. |
| #Leave everything else as default and save settings. | | #Leave everything else as default and save settings. |