I have successfully installed vpn extension. I have a problem on settings. I add the following settings: Local peer address: xxx.xxx.xxx.56 Remote peer address: xxx.xxx.xxx.57 (Same addresses only the last digit is different) But I get error:The two IP addresses must differ only in the two least significant bits, these being 01 in one address and 10 in the other. It is recommended that you pick .1 and .2 for the last octets of these addresses. Any help?