I Have a ASA 5510 on my network, which 3 networks (inside, outside, dmz).
When a dmz host access a inside Host, works ok, but when a inside host try access the dmz host, the following message is displayed on LOG:
Deny TCP (no connection) from hid-dmz/25 to hid-iwss/44674 flags SYN ACK on interface dmz
The static nat:
static (dmz,inside) 172.16.1.0 172.16.1.0 netmask 255.255.255.0
static (inside,dmz) 10.40.4.0 10.40.4.0 netmask 255.255.255.0
172.16.1.0/24: DMZ Network
10.40.4.0/24: Inside Network