A lot of European banking sites have started using MS vpn for online
banking and management. I found the tid below which says bm3.8 does not
support it. Is there some sort of workaround?

Microsoft VPN fails thru NAT - TID10095720

Microsoft VPN fails thru NAT
VPN using protocol GRE 47 fails going through BorderManager
Does BorderManager support protocol GRE 47?


BorderManager NAT does not support protocol GRE 47. Hence it will route it
but it will not pass it through it's NAT. Working as designed.