About Alex Pfeil

Alex Pfeil · 04-29-2022

I have a Firepower Management Center HA Pair running 7.0.1. There are a couple of 5508 firewalls and I notices that the last code that is supported on them is 7.0.1. What is the process of continuing to upgrade the FMC. Can I upgrade the FMC to a lat...

Alex Pfeil · 03-31-2022

We are currently investigating ESA as a possible upgrade from our current solution. One question came up by the security team. In the current solution they have, they are able to view an email inside the GUI of there current solution for security pur...

Alex Pfeil · 03-16-2022

We currently have devices being removed from AD after a certain period of time and removed from ISE after a certain period of time. Sometimes, these devices need to be re-added to the domain and ISE. However, if they are not in ISE and not in the dom...

Alex Pfeil · 03-11-2022

We were hoping to get some feedback on why a router would show ports open on the public facing interface when they are not running on the router? They are not specifically closed. Nat is configured in a manner that would not allow a connection throug...

Alex Pfeil · 10-08-2021

Is anybody in the process of deploying and using the 8300 series edge platforms. We were looking into these and just wanted to get some feedback. Are you using them for SDWAN or configuring them individually? Have you had any issues or just a great e...

Alex Pfeil · 03-31-2022

Interestingly, I placed an ACL blocking port 25 to the outside interface IP address and the port still shows open on a scan. The access-list increments showing that it is denied. Any thoughts?

Alex Pfeil · 03-17-2022

That sounds like a great solution! I will take a look into it.

Alex Pfeil · 03-15-2022

I am going to put an ACL in place just so the port shows closed to a scan. There is no NAT in place that would allow a connection from the outside. Thanks for the help!

Alex Pfeil · 03-11-2022

It is a branch router. Those ports are not listed in the show ip socket command or show tcp brief command.

Alex Pfeil · 02-21-2022

Looking at the diagram, you would just make the two VLANs different subnets. The 20 VLAN could be 192.168.2.0/24 and the 30 VLAN could be 192.168.3.0/24. If you are stuck using the same subnet for both, I would look into VRFs. I have not configured D...

Member Since	‎01-08-2008 12:55 PM
Date Last Visited	‎05-17-2022 08:22 AM
Posts	624
Total Helpful Votes Received	562

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Upgrading Past FMC 7.0.1 With 5508 Firewalls

ESA View Email

Identity Services Engine Remediation or Quarantine VLAN Help

Port Scanning 4331 Router

Catalyst 8300 Series Edge Platforms

Port Scanning 4331 Router

Re: Identity Services Engine Remediation or Quarantine VLAN Help

Re: Port Scanning 4331 Router

Re: Port Scanning 4331 Router

Re: Multiple vlans same subnet, one gateway