I am a bit confused about how (if at all) VPN connections are creating automatic routes in the router and to what extent I have to manage them. My question pertains to PPTP, IPsec and SSTP (I do not use OpenVPN but as we are at it I would be interested to read about it too...).
My (admittedly limited) understanding is that some protocols automatically add routes (IPsec) whereas others (SSTP) do not. Is there any formal and comprehensive description on the topic (have not found any so far, google deosn not seem to be my friend here) ?
More surprising / worrying is that it would seem (?) that I have not access to said automatic routes even doing a ip route print - is that correct ? how can I see ALL routes ?
Again if anyone has created an FAQ / reference on this topic it would be most helpful !