I'm using an L2TP/IPsec VPN. I configured the client according to this guide and it works fine.
The problem is that the ip address of the VPN host (Google Compute Engine) is banned by some websites, so I have to use my ISP's IP address for those sites.
I tried to this:
ip route add distance=1 dst-address=[ip of the problematic website] gateway=[WAN interface]
...but this does not seem to work. Any help would be appreciated.