Emerson Exchange 365

Hi all, 

Seems like there is a lot of sessions with unknown type from 0.0.0.0. I'm trying to restrict the https and ssh with the firewall rules and options but every time and what ever i put as rule, when i press apply, an error popup is show. The rules im trying to apply are:

1. on input with interface eth0 ( and its external interface, the one with the public ip ),

2. source is our Office IP

3. Destination is again eth0 and i try with any too.

4. service any

5. action accept,

6. connection status ( all available )

7. rule state Not Active.

And with this setup i have the following errors: failed to add policy. Unconfigured/Invalid Source

If i change the status to Active for the rule state i get: Policy failed to add in iptables rule

What to do as i think our UMG is compromised ?

Way i can't apply a rule ?