Windows Azure Virtual Network Stuck ‘Connecting’
Microsoft will change the internal IP address time to time. This change is reflected in the peer-ID that it advertises to the on-premises VPN device. Some VPN devices, either by design or by configuration, will require this value to remain unchanged. This will break a tunnel that had previously been working.
Therfore if you experence this issue please change the peer-ID
Microsoft Prerequisites are listed below and here: http://msdn.microsoft.com/en-us/library/windowsazure/jj156210
Outgoing tunnel:
- Public IP address
- Subnet mask
- Default gateway
- Default route for default gateway
- DNS servers for name resolution
- Set TCP MSS to 1350.