?
Solved

Sourcefire IPS (Firepower deplying mode)

Posted on 2013-11-18
1
Medium Priority
?
2,581 Views
Last Modified: 2013-12-04
hi,

dear valued supporters, i would like to ask one question regarding the top IPS vendor Sourcefire... the question is that if we are deploying the firepower in promiscuous mode so can we take any actions on the traffic or what actions can we take on this kind of traffic.

please reply asap as we need to support to one customer.
0
Comment
Question by:syedaassiiiff27
1 Comment
 
LVL 66

Accepted Solution

by:
btan earned 1000 total points
ID: 39658117
I see mainly two mode e.g.
a) Passive - where the 3D Sensor is configured to only monitor traffic and not block. In a VM environment e.g. a port on the virtual switch is configured in promiscuous mode so that all traffic between VMs and to the physical NIC is mirrored on the promiscuous port to the sensor. It is best to use separate virtual switches and physical NICs for a sensor’s monitoring and management interfaces.

b) Passive in a Cluster -  Mostly in HA and load balancing situation. In virtual environment, Users can passively deploy the Virtual 3D Sensor in two possible
configurations: deploy one sensor per ESX host, or one sensor to monitor all the hosts in the cluster. Understand there is another configuration that requires the Cisco Nexus
1000V switch and a Nexus feature called Encapsulated Remote SPAN, or ERSPAN. ERSPAN is very similar to Cisco’s RSPAN feature, where SPAN traffic from a switch can be directed to the destination port on another switch.

Hence, if all of the hosts are using Cisco Nexus 1000V switches, most of the Nexus
switches can be configured to send their SPAN traffic to a single Virtual 3D Sensor. The sensor’s local switch can use traditional SPAN to send traffic to the sensor.

c) Inline - This block traffic. The sensor bridges the traffic between the switches and blocks any traffi c matching specific IPS “drop” rules.

e.g. from the community forum which you can find more info or post
https://community.sourcefire.com/questions/setting-a-policy-or-configuration-value-to-allow-all-ips-traffic-to-pass-through
https://community.sourcefire.com/questions/configuring-virtual-sensor-inline
https://community.sourcefire.com/questions/inspecting-virtual-traffic-from-multiple-vlans

I’d suggest you contact your SE and he/she can help you out there.
0

Featured Post

IT Degree with Certifications Included

Aspire to become a network administrator, network security analyst, or computer and information systems manager? Make the most of your experience as an IT professional by earning your B.S. in Network Operations and Security.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this blog we highlight approaches to managed security as a service.  We also look into ConnectWise’s value in aiding MSPs’ security management and indicate why critical alerting is a necessary integration.
Each password manager has its own problems in dealing with certain websites and their login methods. In Part 1, I review the Top 5 Password Managers that I've found to be the best. In Part 2 we'll look at which ones co-exist together and why it'…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…
Suggested Courses

609 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question