I am working at a client site. We have an issue where a PIX Firewall is not allowing access to a device in a DMZ network from devices on the Inside interface.
Here are the security levels of the interfaces:
nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif ethernet2 DMZ security50
Network 172.16.43.0 is off of the inside interface. Network 192.168.155.0 is the DMZ (DMZ interface address is 192.168.155.1).
I have ran captures this morning and determined that 1) traffic destined for a device in the 192.168.155.0 network makes it to the inside interface and 2) traffic seen on the inside interface for this device never makes it into the DMZ.
There is not an ACL in place on the DMZ interface, and right now I cannot determine why the Firewall is blocking this traffic.
I am going to include the running configuraton of this.
The device we are trying to connect to is 192.168.155.6. The device we are trying to connect from is 172.16.43.144.