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”. Microsoft Azure ‘Route Based’ VPN to Cisco ASA Policy Based This article will deal with Policy Based, for the more modern Route 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. This is the second time have had to write this article purely because the Azure UI has changed! The one reason I prefer Cisco over Microsoft is they rarely change things, you learn how to do something and it’s learned.
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