UAS and Sun Fire X4200 M2

[gyovel]

Hi all attends

I have SecurePlatform NGX (ENFv26) Build 124 and server Sun Fire X4200 M2. After configured VPN-1 a module uag don^t work. It^s the error after running uagstart:
[Expert@FW-S03]# uagstop
This operation may take up to 2 minutes
UserAuthority: uas already stopped
UserAuthority: Stopping driver
UserAuthority: Stopped
[Expert@FW-S03]# uagstart
UAS: Loading UAS driver ...
mknod: wrong number of arguments
Try ^mknod --help^ for more information.
chmod: failed to get attributes of ^/dev/uag0^: No such file or directory
UAS: UAS driver was loaded successfully
UserAuthority: Starting driver
Unable to open ^/dev/uag0^: No such file or directory
UAG module: Can^t open UAG device
UserAuthority: Driver load failed
[Expert@FW-S03]#

I test the same Splat version on IBM 3550 server and work properly.
the server Sun Fire X4200 M2 is only certified for splat 2.6 version.

anyone has experience with that config?
any work around possible here?

Thanks
Guy