Dynamic IP VPN between IpSec(OpenBSD) and Linux VPN software
 

Hello all experct network expect, i plan to set up a vpn between my laptop and my router which is openbsd.

As far as i know, openbsd using ipsec as its vpn software.

Then how about Linux ?
Openswan, openvpn and others. Which is easy to configure and features oriented.

How about the issues of dynamic ip ?

Should i use MAC filtering to determine my identify ?

Can a hacker spoof MAC to pretend he is a valid user ?

I think i should add another layer which is username and password.

Your opinion is greatly appreciated by me and others.

A billion thanks for your help.

Any help is greatly appreciated by me and others.

Please post some suggestion.