Aviatrix Gateway to Cisco IOS Router

This document describes how to build an IPsec tunnel based Site2Cloud connection between an Aviatrix Gateway and a Cisco IOS router.

The network setup is as follows:

VPC/VNet-AVX (with Aviatrix Gateway)

VPC/VNet CIDR: 10.100.0.0/24

On-Prem (with Cisco IOS Router)

On-Prem Network CIDR: 10.10.2.0/24

Creating a Site2Cloud Connection at the Aviatrix Controller

  1. Go to Gateway > New Gateway to launch an Aviatrix Gateway at the subnet (public subnet for AWS, GCP, or OCI) of VPC/VNet-AVX. Collect the Gateway’s public IP addresses (52.4.65.172 in this example).

  1. Go to the Site2Cloud page and click Add New to create a Site2Cloud connection.

    Field Value

    VPC ID/VNet Name

    Choose VPC/VNet ID of VPC/VNet-AVX

    Connection Type

    Unmapped

    Connection Name

    Arbitrary (e.g. avx-ios-s2c)

    Remote Gateway Type

    Generic

    Tunnel Type

    UDP

    Algorithms

    Unmark this checkbox

    Encryption over Direct Connect

    Unmark this checkbox

    Enable HA

    Unmark this checkbox

    Primary Cloud Gateway

    Select the Aviatrix Gateway created above

    Remote Gateway IP Address

    Public IP of IOS Router WAN port (52.9.196.2 in this example)

    Pre-shared Key

    Optional (auto-generated if not entered)

    Remote Subnet

    10.10.2.0/24 (On-Prem Network CIDR)

    Local Subnet

    10.100.0.0/24 (VPC/VNet-AVX CIDR)

  1. Go to the Site2Cloud page. From the Site2Cloud connection table, select the connection created above (e.g. avx-ios-s2c).

  2. Select Generic from the Vendor dropdown menu.

  3. Click Download Configuration to download the Generic Site2Cloud configuration.

  4. Save the configuration file as a reference for configuring your Cisco IOS router.

    The following is a sample configuration based on the Site2Cloud configuration above.

    image0

Configuring Cisco IOS Router

  1. Either ssh into the Cisco router or connect to it directly through its console port.

  2. Apply the following IOS configuration to your router.

From version 5.0, we use the gateway’s public IP address as the identifier, so the "match identity address" should use the public ip instead of the private ip as pointed in the picture below.
image1

Troubleshooting and Verifying at the Aviatrix Controller

  1. At the Aviatrix Controller, go to the Site2Cloud page. Verify that the status of the Site2Cloud connection is up.

    image2

  2. At the Site2Cloud - Diagnostics page, run various diagnostics commands.

    Field Value

    VPC ID/VNet Name

    VPC/VNet-AVX (Aviatrix Gateway VPC/VNet) ID

    Connection

    Name of the Site2Cloud connection created above

    Gateway

    Name of the Aviatrix Gateway

    Action

    One of the supported diagnostics commands

For support, please open a support ticket at Aviatrix Support Portal.