I'm getting this error even if the IP addresses used for NAT are correct, not network or a broadcast address.
%PIX-3-305006: Regular translation creation failed
Cisco PIX Firewall Version 6.3(5)
Cisco PIX Device Manager Version 3.0(4)
My network is connected with MPLS links. If I ping from another site (another network) I get a reply and no error messages logged. Other networks reach my site from the inside interface via MPLS router. If I ping from inside to the inside address of the server, natted from the dmz, I get the above error logged and no response.
static (dmz,inside) MAIL_inside MAIL_dmz netmask 255.255.255.255 0 0
net remote : 192.168.1.0 /24
net local : 192.168.3.0 /24
dmz: 10.0.0.0 /24
Remote network is connected via MPLS router.
I ping the ip address in local network 192.168.3.1 from remote network 192.168.1.0, I reach the server, real address 10.0.0.1.
If I ping from a machine in my local network 192.168.3.0/24 the ip address of the server 192.168.3.1 I can't get any response!
Hope my explanation is clear.
Any hint? Thanks