On Mon, 26 Nov 2012, Benson Schliesser wrote:
I expect to be flamed for suggesting it, but why not use the Shared Address Space for this purpose? (http://tools.ietf.org/html/rfc6598)
You can't, if carriers are assigning you that IP range. You'd still get a conflict if you use it for your own VPN range, as the inner address cannot be in the same subnet as the outer address (whether in tunnel mode, or when using transport mode with L2TP) Paul