stilladvantage.blogg.se

You can do the next two steps together, but I prefer to do then separately, or it will error if the first one does not complete!

Note: This will take a while, go and put the kettle on! Make sure all running tasks and deployments are complete before continuing. You can’t change the name, (you could before, then it wouldn’t work, which was strange, but I suppose it’s fixed now) > put in another network that’s part of the Virtual-Network, but does not overlap with the subnet you created in the previous step > OK.Īll Services > Virtual Network Gateways > Create Virtual Network Gateway > Name it > Route Based > Create New Public IP > Give it a Name > Create. With your virtual network selected >Subnets > +Gateway Subnet. If you are a ‘networking type’ it’s part of the virtual network, but is more specific than the subnet you already created. To further confuse all the network engineers, we now need to add another subnet, this one will be used by the ‘gateway’. OK, if you’re used to networking this can be a little confusing, we are going to create a virtual network, and in it we are going to put a virtual subnet, (yes I know this is odd, bear with me!) It’s the ‘ Subnet Name‘and ‘ address range‘ that things will actually connect to, (10.0.0.0/24).Īll Services > Virtual Networks > Create Virtual Network > Give the Virtual Network a name, a subnet, select your resource group > Then create a Subnet, give it a name and a subnet > Create. Sign int0 Azure > All Services > Resource Groups > Create Resource Group > Give your Resource Group a name, and select a location > Create. You may already have Resource Groups and Virtual Networks setup, if so you can skip the first few steps. Note: You could ‘hairpin’ multiple sites over this one tunnel, but that’s not ideal.Ĭonfigure Azure for ‘Route Based’ IPSec Site to Site VPN

Can only be used for ONE connection from your Azure Subnet to your local subnet.

Can be used with Cisco ASA OS (pre 8.4) IKEv1 only.

These came first, essentially they work like this, “If traffic is destined for remote network (x) then send the traffic ‘encrypted’ to local security gateway (y).” Note: Where Local Security Gateway is a firewall at YOUR site, NOT in Azure! This is the way traditionally VPNs have been done in Cisco ASA, in Cisco Firewall speak it’s the same as “If traffic matches the interesting traffic ACL, then send the traffic ‘encrypted’ to the IP address specified in the crypto map”.

Can be used for VPNs to multiple sites.

Cisco ASA now supports Virtual Tunnels Interfaces (After version 9.7(1)). These were typically used with routers, because routers used Virtual Tunnel Interfaces to terminate VPN tunnels, that way traffic can be routed down various different tunnels based on a destination, (which can be looked up in a routing table). Microsoft Azure To Cisco ASA Site to Site VPN Route Based This article will deal with Route Based, for the older Policy Based option, see the following link With VPN’s into Azure you connect to a Virtual Network Gateway, of which there are TWO types Policy Based, and Route Based. My question is, how can I make Traffic manager to point the connections to the current Active ASA in those situations.This covers the, (more modern) Route based VPN to a Cisco ASA that’s using a VTI (Virtual Tunnel Interface). But it doesn’t happen automatically by design of Cisco. Of course, if I login and make ASA-1 active, everything will be good. We got into situation where ASA-1 is backup but online, ASA-2 is active and Traffic manager is pointing Anyconnect users to connect to ASA-1 which is not okay due to inside routes are pointing to ASA-2 at this time. By this time the failover kicked in and secondary become active. Problem comes when for example the active asa got rebooted and then came back online. When I simulate failover by completely shutting down ASA-1, everything is good, traffic manager points Anyconnect to ASA-2 and Ipsec tunnels are redirected.

In normal scenario Anyconnect user connects to ASA-1 and site-to-site tunnels as well. All these is controlled by external load balancer and API agent.įor Anyconnect RA I am using traffic manager pointing ASA-1 as a priority and all clients are connecting via one DNS name. When failover event happens backup ASA just change the UDRs pointing the routes to its interfaces and become active. The two ASA will be active/standby, cloud failover is a bit different than on prem ASAs. I am going to deploy two ASAv in HA in azure, main purpose will be site-to-site and Anyconnect RA.