socks connection authentication

hi every body
i want to use socks connection
does v5.12 support socks connection authentication to connect to remote computer ?
is socks version 5 or 4 in router os ver 5.12?
in ip socks i find only socks enable and access connection and connected connection list.
:confused:

i think it’s SOCKS 4 (that’s what i set in putty when using this feature). No authentication but a good access-list can go a long way.