There are times when we need to build connectivity between Aviatrix Transit and Azure VPN Gateways. I’ve created a terraform module for a quick lab demonstrate how this can be done.Continue reading
Monthly Archives: September 2022
Terraform – Note to Self
Get list of all possible combination, from multiple listsContinue reading
Aviatrix Site to Cloud Connection demystified
When working with Aviatrix Site to Cloud Connections, it could be confusing to understand how tunnels are established. I will take you through three scenarios and hopefully help to planning to Aviatrix S2C connections with other vendors.Continue reading
Aviatrix control plane HA in AWS
Aviatrix Controller isn’t In data path, controller down will affect ability to change currently configuration, or to monitor gateway status to make changes to route tables, or to authenticate new VPN user connection request.
To make sure Aviatrix controller in AWS highly available by avoiding single AZ failure, Aviatrix has developed a CloudFormation template that utilizes Auto Scaling Group and Lambda function to automatically monitor controller failure, redeploy controller and restore configuration.Continue reading
Packet capture on Cisco ISR/CSR
Learned this from my friend Ricardo today, no longer running blind trying to figure out if a specific packet is received and what the router did with it.Continue reading
Create BGP over GRE tunnel between Aviatrix Transit and Palo Alto Firewall
Here’s a case where customer wants to create BGP over GRE tunnels between Palo Alto Firewall and Aviatrix Transit Gateways. Palo Alto have some articles but not very clear, this blog will serve as a reminder how this is done. Credit to Pranay for helping out the BGP peering part on Palo.Continue reading
Direct Connect to Aviatrix Transit – Option 1
This is the first of the three articles. It will be the easiest to accomplish but with following requirements, and constrains highlighted.
- Virtual Private Gateway (VGW) has to be created in the same region as the Direct Connect Private Virtual Interface (VIF).
- Each VIF is dedicated to one VGW.
- VGW is NOT attached to the VPC
- Aviatrix orchestrate Customer Gateways and VPN Connections, building 2x IPSec/BGP tunnels per Aviatrix Transit Gateway.
- Each IPSec tunnel have 1.25G throughput limit
- Private Virtual Interface support up to 100 BGP routes, BGP session will go DOWN when more routes been advertised. In layman’s term when this happens, Cloud won’t see OnPrem routes, and OnPrem won’t see Cloud routes, connectivity between Cloud and OnPrem will be LOST. You must summarize advertised routes on both ends to be lower than 100 to get around this limit.
- Between On-Premise to VGW, traffic maybe protected by MACSec, but still expose to man in the middle attack. Reference article: Securing your network connection to the cloud: MACSec vs. IPSec
Using AWS TGW Connect with Aviatrix Transit to build GRE tunnels
When customers are migrating to Aviatrix Transit from AWS TGW, we would build BGP connectivity between AWS TGW with Aviatrix Transit. In the past, we have to use IPSec, which would be limited to 1.25G per tunnel connection speed, for customer’s that doesn’t require end to end encryption during the migration, with AWS TGW Connect, now we can build GRE tunnels between AWS TGW and Aviatrix Transit.Continue reading