Port forwarding vs 1:1

[SFM]

I am just wondering if there is a more secure method of NAT?

If you have the choice of using 1:1 or Port Forwarding, are either of these methods more secure then the other.

Any opinions on the subject are welcome.

Thanks
SFM

[hoba]

Both ways of NAT run through the same firewall/filter. You have to add rules to permit traffic additional to the NAT and the rules are even the same like for using 1:1 or portforward. It doesn't make a difference in security.