@Mark Duncan
Thanks for reaching out to us on MicrosoftQ&A.
Answering your questions/concerns:
- Since the existing vpn in policy based i can't add another connection to it.
You can have multiple policy based VPN connections going to a single Vnet as given here in document.
However, if you need to implement route based VPN for the new location, then it is best to delete the old gateway and re-create a new one as a route based gateway.
- doing this seems to mean that the existing virtual network would no longer be able to be connected to it's existing VPN. is that the case?
Yes a virtual network can have only one gateway.
Hope this answers your questions. Please let me know if you have any further questions/concerns and we will be glad to assist further. Thank you!
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