Suricata logs and what they mean??

Started by Supermule, April 09, 2020, 12:24:45 PM

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Sorry for the 'dumb' question, a newbie here, please don't shoot   :P

What is the correct configuration for the IPS for the interfaces ?

   1) Only LAN ?

   2) Only WAN ?

   3) Both LAN and WAN ?

Lastly, not clear whether or not I should add the WAN IP address in Home networks ?

Many thanks

Quote from: hushcoden on May 03, 2020, 06:46:37 PM
Sorry for the 'dumb' question, a newbie here, please don't shoot   :P

What is the correct configuration for the IPS for the interfaces ?

   1) Only LAN ?

   2) Only WAN ?

   3) Both LAN and WAN ?

Lastly, not clear whether or not I should add the WAN IP address in Home networks ?

Many thanks


Is your WAN source-natting the traffic from your LAN?

Quote
Is your WAN source-natting the traffic from your LAN?
Sorry, I don't think I understood... My WAN interface's got a public IP, LAN has got IP address 192.168.0.1 (only IPv4) and my clients are in the range 192.168.0.2--192.168.0.50

Quote from: hushcoden on May 03, 2020, 07:11:53 PM
Quote
Is your WAN source-natting the traffic from your LAN?
Sorry, I don't think I understood... My WAN interface's got a public IP, LAN has got IP address 192.168.0.1 (only IPv4) and my clients are in the range 192.168.0.2--192.168.0.50

Ok, so the answer in yes.

In that case, i´d only configure it for the LAN interface.

WAN is not needed in my opinion because, by default, any incoming traffic (Internet --> WAN) is going to be dropped unless you have an internal service that has to be reached from outside (which doesn´t seem to be the case).

I´d put the IPS in the WAN in routed topologies, not natted ones.

May 03, 2020, 10:27:17 PM #19 Last Edit: May 03, 2020, 11:31:47 PM by hushcoden
Okay, thanks and therefore I don't even need to add the WAN IP address in Home networks, correct ?

I don't have any internal services that have to be reached from outside...

Quote
I´d put the IPS in the WAN in routed topologies, not natted ones.
Sorry, what does it mean exactly ?

Also, in the alerts tab I see just the same type of alert, 365 entries so far, see attachment: is this a false positive ?