Cisco Secure Firewall Reviews

It's deployed in multiple ways, depending on the use case. Generally speaking, we have them as edge firewalls, but I have some customers who use them as data center firewalls, and some customers who use them as VPN firewalls. And in some places, they're the east-west firewalls, as they would be called in a core network. We do have some that are for cloud firewalling, that we're using in Azure and AWS. But generally speaking, they're deployed as edge firewalls and on-prem.

In some cases that I'm aware of, when moving from specific platforms like Check Point, Firepower has offered a much easier way of working with the platform and deploying changes. For the customer, it's a lot easier in the newer platform than it was in the previous one.

I've done network assessments, where we wanted to get visibility into all flows. I used Firepower boxes for some of those, where we tapped a line and let Firepower see all the traffic. It was incredibly helpful in picking up all of the flows of data. As a result, I was able to give information to the customer, saying, "This is what it's doing and this is what it's seeing in your network." I find it very helpful to get all that type of data. It's got a lot more information than NetFlow-type systems.

There have also been use cases where I'm doing east-west and north-south in the same firewall box. That is possible with SGTs and SD-Access and Firepower. That ability has been critical in some of the designs we've done. A scenario would be that we have an underlay, a corporate network, and a guest network VRF-routed zone; big macro security zones. We are doing micro-segmentation at the edge with SD-Access, but the macro-segmentation between the zones is handled by the firewall. Because we didn't want to split up our east-west and north-south, because there really wasn't a budget for it, they're on the same box. That box is able to do both flows that go towards the internet and flows that go between the different interfaces on the firewall. We're using SGTs in those policies and we're able to extend the logic from the SD-Access environment into the firewall environment, which creates a very unified approach to security.

We're also able to implement dynamic policies for dynamic environments with 7.0. That's becoming more and more important every day. IPs are becoming less important; names and locations and where things live in the cloud mean things are becoming a lot more fluid in the world of security. It's very helpful to have objects and groups that can follow that fluidity along, as opposed to me trying to do it old school and static everything up. No one has time for that. Dynamic policy capabilities enable tight integration with Secure Workload at the application workload level. The IP is less relevant and the application or the VMware tag can be tied to a specific ruleset. It's very helpful to be able to have it be so dynamic now. We're using more and more of those dynamic group concepts.

When it comes to the solution’s tags for dynamic policy implementation in cloud environments, VMware is the primary one I'm seeing these days, but I expect Azure to pick up significantly. The use of these tags for dynamic policy implementation in cloud environments simplifies things. We don't have to have so much static stuff pinned up. We can just have a single rule that says, "If it's this tag, then do this," as opposed to, "If it's this IP and this IP and this other IP, then you're allowed to do this thing." By disconnecting it from the IP address, we've made it very flexible.

We are specifically using 7.0 Firepower in several different areas. We have them as an IPS within the core, IPS on the edge, and we're also using the AnyConnect Client as our basis for VPN connection into corporate and other applications.

Firepower NGFW has improved my organization in several ways. Before, we were trying to stamp out security threats and issues, it was a one-off type of way to attack it. I spent a lot of manpower trying to track down the individual issues or flare-ups that we would see. With Cisco's Firepower Management, we're able to have that push up to basically one monitor and one UI and be able to track that and stop threats immediately. It also gives us a little more granularity on what those threats might be. 

We were able to stop hundreds of threats. For killing threats, we were able to get several hundred now in comparison to the one-off that we used to be able to do.

Dynamic policies are very important for us because we do not have the manpower to really look at everything all the time. So having a dynamic way of really registering, looking at, and having certain actions tied to that are incredibly effective for us in slowing any kind of threat.

We're getting there as far as using the application, using it to go to the application level, we're at the infancy of that. We're looking at definitely tying that into our critical applications so that we can see exactly what they're doing, when they're doing it, and being able to track that.

Firepower's Snort 3.0 IPS allows us to maintain performance while running more rules with the advent of 3.0 comparatively to 2X, we have seen at least a 10 to 15% increase in speed where it seems to be more effective. The updates seem to be more effective in finding malicious information. We've definitely seen at least a 10 to 15% increase on tying policy to 3.0.

We use them in multiple places on our network. We use them on the edge of our network, in more of the traditional sense for inbound and outbound filtering. We also use them as a center of our network between all of our users and servers, so that all user traffic going through our servers is IPS and IDS as well.

We have multiple Cisco 5000 Series firewalls and we also have a 4110 Series firewall, all running the FireSIGHT threat detection image. We keep that up to date within three months. If a new release comes out within three months, we're updating. The software deployment is on-prem.

We definitely feel that we're more secure now than we have been in the past. That goes back to those Zero-day vulnerabilities. An example would be some of the vulnerabilities with Adobe TIF files that were recognized. We run a document management system that wrote the extra, tailing zeros onto all the TIF files, and that was highly exploitable. The Cisco firewalls were able to catch that on the files traveling across our network and highlight it. Those are issues that, without the firewalls actually seeing the north-south traffic in our network, we just didn't have visibility into before. We were running blind and didn't even realize that we were vulnerable in those ways.

Cisco NGFW has excellent visibility through the constructs it has. New vulnerabilities come out and we have hit those multiple times thanks to their solution. We come in on a Monday and, all of a sudden, an application that was working on Friday isn't working. That's because a major vulnerability came out over the weekend. The firewalls, and being able to use the dashboards through FireSIGHT management, provide very good visibility into what's actually going on and why different items on the network are happening. Overall, I would say the visibility is very good.

In addition, among our multiple vendors for firewalls, etc., Cisco Talos really distinguishes Cisco from the Palo Altos and the Barracudas of the world. The work that they do to identify Zero-days and new threats out there, and then document all of that, is invaluable to our organization. I can't say enough about Cisco Talos.

The primary use case is mainly around perimeter security at the HQ and the branch. This will include using the Next-Generation Intrusion Prevention System (NGIPS), using advanced malware protection for networks on the firewall, and remote access VPN as well as site-to-site VPN.

I work for a Cisco partner and managed service provider. We have a number of customers. Typically, the standard setup that we have is a Firepower Management Center Virtual, running in VMware, with physical FTD appliances (as the firewalls) on-premises.

We work with more mid-size organizations who typically have email security, web security, endpoint security, and perimeter security. In terms of products, that would be:

• Cisco Umbrella
• Cisco Cloud Email Security
• Cisco Secure Endpoint
• Firepower, for the perimeter. 

That would be a typical technology mix. Sometimes, some customers will consume something like Duo Security for multi-factor authentication.

We are primarily running ASA Firewalls with the FTD image. We are also running some Firepower 1000 Series. 

One of the nice things about Firepower is that you can set it to discover the environment. If that is happening, then Firepower is learning about every device, software operating system, and application running inside or across your environment. Then, you can leverage the discovery intelligence to get Firepower to select the most appropriate intrusion prevention rules to use for your environment rather than picking one of the base policies that might have 50,000 IPS rules in it, which can put a lot of overhead on your firewall. If you choose the recommendations, as long as you update them regularly, you might be able to get your rule set down to only 1,000 or 1,500, which is a significant reduction in a base rule set. This means that the firewall will give you better performance because there are less rules being checked unnecessarily. That is really useful. 

Cisco implemented a role-based access control for Firepower, so you can have very granular accounts. For example, a service desk analyst could have read-only access. If we have a security operations team, then they could have access to update IPS vulnerability databases. A network engineer could have access to update ACLs, not rules, which is quite useful. Also, you can selectively push out parts of the policy package based on your role-based access control. So, if you have one job role and work on one part of the configuration, and I work on another job role working on a different part of the configuration, then I could just deploy the changes that I have made without affecting what you are doing (or without pushing out your changes). It is quite nice to be able to do that in that way.

Our primary use cases for FTD are IPS, intrusion detection, and to get visibility into the network and the traffic that is going on in some sites. We always have them in-line, meaning that they're between two networking connections, and we analyze the traffic for the purposes of internal detection.

In production, from the FTD line, we mostly have 2110s and 2130s because we have a lot of small sites, and we are starting to put in some 4110s. We only have FirePOWER here, but we don't use them most of the time as next-gen firewalls but more as an IPS.

Everything is on-premises. We don't use public clouds for security reasons.

When you put FTD between your internet and network units, you can get valuable insights about your encrypted traffic on the web, DNS traffic, and the like. It gives us statistics up to Layer 7.

Although I can't go into the details, the way the solution has helped our organization is more on the root-cause side when there is an incident, because we get very detailed information.

FTD's ability to provide visibility into threats is very good, if the traffic is clear. Like most companies, we have the issue that there is more and more encrypted traffic. That's why we use Stealthwatch instead, because we can get more information about encrypted traffic. But FTD is pretty good. It gives us a lot of details.

We put them in in-line and in blocking mode and they have stopped some weird things automatically. They help save time every day. We have 150,000 people all over the world, and there are times when computers get infected. It helps save time because those infections don't propagate over the network.

The fact that we can centrally manage clients for our IPS, and that we can reuse what we type for one IPS or one firewall, makes it easy to expand that to multiple sites and multiple devices. Overall, it has been a great improvement.

I implemented the product which provides end-to-end networking and security features. It starts with secure tunneling, and I performed micro-segmentation in the firewall specific to a particular customer environment. It offers comprehensive security as well as networking features that I have enabled.

The software was mainly the highlight. Most firewalls have a challenge of identifying keywords and providing restricted access, which I encountered. However, Cisco Firewall has very good features, like trusted applications and restricted access for users based on keywords. I could access it appropriately, unlike some firewalls where this is a challenge. Essentially, the restricted access to websites has been exceptional. I was in the life science industry, focusing heavily on compliance. This product meets compliance requirements, and the security process has improved. Stability and consistent performance are critical components of Cisco's product.

I'm a solution architect specializing in IT infrastructure designs. I create solutions for clients using Cisco and other products. I've developed solutions with various Cisco Firewall models. I may use an entry-level solution for smaller businesses, like the Cisco 555 Series or 5500. If it's a large enterprise, I may use the 4000 Series, or an ISR router integrated with a firewall for a branch office, and maybe an ISR router, which is integrated with the firewall.

I work with businesses of all sizes, but I see Cisco more often in medium-sized companies or large enterprises. Small businesses often pick Sophos or FortiGate because of the pricing. Large enterprises use Cisco and other products like Palo Alto or Check Point, especially for managing cloud architectures like GCP and AWS. 

If the customer only needs a plain firewall, Cisco ASA is sufficient. It can compete with FortiGate or Sophos. When I talk about a next-gen firewall, the basics include malware protection, instruction prevention, URL filtering, etc. Firepower is integrated to address these next-gen requirements. 

I may use the tabs for dynamic policy implementation in cloud environments depending on the clients' needs, but not typically VMware. I might get a false positive with the VMware operator and platform layer. If I stop some surveys, my production will stop. In such cases, I cannot just go by dynamic classification blindly. It would be better for the application layer, not the platform layer.

I don't have any metrics about how ASA has improved operations for my clients, but I can look at their market share relative to Check Point and other competitors. Cisco has a decent footprint today, and it reduced my customers' CapEx. I don't have the numbers. I'm just speaking relatively. Cisco can reduce operational expenditures by around 40 percent. I'm just giving a vague estimate, but I don't have any specific metrics.

Cisco offers two architectures. I can choose the Meraki track if I want an OpEx model or the traditional track, which is a CapEx model. Due to Cisco's tech acquisitions, I have various feature options within the same product. The DNA of Cisco combines the traditional Cisco architecture with the next-generation firewall.

Segmentation can be helpful for some clients. Let's use a financial organization as an example. We have traffic moving through the branch to the core banking. This is where we can employ segmentation. We can do security policy restrictions for branch employees to prevent them from accessing certain financial reporting systems. We can limit them to the branch level. 

I can enforce certain policies to prevent all branch traffic from reaching one layer of a particular segment by minimizing the overall traffic on the network. I can always control the traffic when I segment it. This set of capabilities is beneficial when a lot of financial algorithms are done.

The solution is used in a normal enterprise-level configuration. It has effectively worked as a perimeter firewall. Our VPN was also configured on it.

The threat prevention is better than FortiGate, but it is less effective than Palo Alto. The VPN functionality is consistent, and the performance is good.