In message <02ba01c0e481$e82a3c10$5cea5fd8@qobra.com>, "Jack" writes: > >Could you tell me which kind of tunnel isakmp uses? At first, I thought = >it uses gif tunnel. But I find it can work well without gif tunnel. I am = >confused now. Hope I can get help from you. Thanks. It doesn't use gif. Rather, gif uses the same tunneling code (meaning, you don't need gif to use IPsec/tunneling). -Angelos