i've setup an ipsec tunnel between a pix and a ssg550.
if i try to connect from a server behind ssg550 to a server behind pix, the ipsec tunnel goes up and i can connect the servers on pix side. Instead, if a try to connect from a server behind the pix to a server behind ssg550 the tunnel doesn't go up.
when tunnel is up i'm able to connect in both directions.
from pix debug i can read:
ISAKMP: unable to add atts to IPSec SA!
Can anyone help me to understand why tunnel goes up when requests are from ssg550 to pix and not viceversa?
in attach the pix debug file
thanks in advance