Pfsense EXCLUSIVE Download Mirror

When using a mirrored Virtual Device Type, this also mirrors the swap spacecontents between disks. The default is to consider the swap space on each diskseparately. In most cases the contents of swap are not important enough towarrant mirroring and the degraded performance it would impose.

Ok, so basically this whole thing was a wild goose chase. I tracked down the person that gave the person that gave me the information on the issue and they had pretty much everything incorrect. I had contacted VMware about it and they said that what this person wants to do is not possible because the boundary for promiscuous mode is the host. This was their quote: "We can sniff traffic on the same host/DPG but we wouldn't be able to see the traffic on other hosts. The dVS doesn't span any hosts so much as pushes down a vSwitch with pre-configured settings from vCenter. Beyond that each host communicates directly with the attached physical switch." We did even try to do port mirroring but that also didn't work. So I told the person who gave me the information and they are good now.

Pfsense Download Mirror

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You do not mention a port mirror - a port mirror is required to soruce the traffic and copy it to the destination (in your case the 3 VMs). Using 3 VMs is an added challenge - you might need 3 port mirrors. you could source the vlan or juts the pfsense port-group, the desitnaiotn will be a new distributed port for your VMs.

It seems like you have set up a complex networking environment with PFSense, vCenter, ESXi hosts, and multiple VMs on different Distributed Port Groups (DPGs) and VLANs. The issue you are facing with Kali Linux VMs not being able to capture traffic on Wireshark when VMs are on different hosts than the PFSense could be due to several factors. Let's explore some potential causes and troubleshooting steps.

Ensure that the vDS settings are consistent across all hosts in the cluster. Check that the Distributed Port Groups for both WAN and LAN have the same configuration (Promiscuous Mode, MAC Address Changes, Forged Transmits) set to Accept on all hosts.

Verify that the physical switches to which your ESXi hosts are connected allow Promiscuous Mode and don't have any restrictions that could prevent traffic visibility between hosts.

Double-check the networking configuration on each ESXi host, including VLAN configurations and uplink connections to the physical switches. Ensure that all VLANs required for communication are configured correctly.

Make sure that VMware Tools are installed and up-to-date on all VMs. Additionally, ensure that VMXNET adapters are used for networking, as these adapters provide better performance and functionality.

Review any security groups or firewall rules in PFSense that could be affecting communication between VMs on different hosts.

If you have enabled Jumbo Frames, verify that all networking components (vDS, physical switches, NICs) support Jumbo Frames and are configured correctly.

Understand the network traffic flow between VMs on different hosts. Ensure that the network paths are correctly configured and allow for traffic to flow between VMs as expected.

Check if port mirroring (SPAN/RSPAN) is configured correctly on the physical switches to allow Wireshark capture of traffic between VMs on different hosts.

Ensure that Wireshark is running with sufficient privileges to capture network traffic. You might need to run Wireshark with elevated permissions or use capture filters to narrow down the traffic being captured.

Confirm that DNS is working correctly for all VMs, as name resolution issues can sometimes lead to communication problems.

It's worth noting that the complexity of your environment could introduce several points of failure, so a systematic troubleshooting approach is essential. You may need to use network analysis tools like tcpdump or packet captures within PFSense to investigate specific traffic flows.

As a best practice, make sure to have backups of critical components, including PFSense configurations and VMs, in case any changes or troubleshooting steps result in unexpected outcomes.

Given the complexity of your setup, reaching out to VMware support or seeking assistance from a networking expert familiar with VMware environments could also be beneficial.

Remember to document any changes you make during the troubleshooting process to aid in tracking progress and reverting to previous configurations if necessary.

Lastly, I want to emphasize the importance of VMware backups Opens a new window and configuration backups in virtualized environments like VMware. Regular backups ensure data protection and enable quick recovery in case of unexpected issues or data loss.

This is basically just for testing to see if the setup with promiscuous mode will work and so far it's proving that it will not. I could definitely use a VM-VM affinity rule to group all the VM's on one host and it would work but that would defeat the purpose of this promiscuous mode test. I even tried your suggestion of port mirroring and the pfSense will not pick up any ICMP packets if one VM pings another on hosts that the pfSense isn't on. From what I've been told is that this method worked before in this exact scenario. The only thing that has changed since it worked last to now is that I updated ESXi and vCenter to the latest versions of 7 (U3n and 7.0.3.1600 respectively). Unless VMware broke something on this update, which I HIGHLY doubt is the case.

I understood you were running wireshark on one of the VMs to capture traffic for analysis. so the above makes no sense, the port mirror destinaiton would be one of the VMs with wireshark - that is where you would observve the ping. not on pfsense.

I've just tested on an environment with distributed v switches. both promiscuous distributed port group and port mirror worked fine but verison is 6.7

vm 1 on host 1 pings vm 2 on host 2, mirror destinaiton/connected to dist port group VM3 on host 3. VM3 sees the traffic between vm 1 and 2.

UFS is OK and not in question here, the problem is gmirror. If a user thinks they need gmirror for some reason or another they would have to install an older version and upgrade. They already haven't been able to create a new gmirror since 2.3 or earlier, reinstalling on gmirror just happened to work in the last iteration of the installer but doesn't any longer.

Typically right now we also have issues with the installer converting from gmirror to ZFS. Haven't tested since 22.05, but we usually have people run "gmirror destroy -f pfSenseMirror" from recovery shell if a ZFS mirror cannot be created.

To Achieve this, we need a layer 2 switch that supports port mirroring and can send mirrored traffic to a specific VLAN while still forwards and receives frames on the parent physical port. I believe this is only supported on very advanced enterprise gear like some high end Cisco switches (some flavor of RSPAN). Even then, additional features need to be supported by the switch like QinQ in order to mirror sub-interfaces.

It is possible to do port mirroring in software. In FreeBSD, ifconfig package provides an option to mirror a bridge port to another interface. I am going to walk through how to do it in Pfsense, since it uses ifconfig in the backend and it will be easier to setup and configure.

Sub-interfaces of the original interface to be mirrored do not get replicated to the SPAN VLAN. For example, in our setup, if the LAN interface had VLAN interfaces under it, they would not be mirrored to the SPAN VLAN.

To circumvent that, we could use QinQ (802.11ad) which is essentially a second VLAN layer. However, this will require some changes to the existing setup and interface reassignments (reassigning LAN to be under a QinQ interface). In most cases this will only be done in a lab, so if you want to mirror more than one interface, it might be easier to just add multiple bridge interfaces than deal with QinQ complexities.

The other small Hynix SSD ended up failing too, and I moved away from this setup. While I was investigating the problem with the SSD's dropping out of the mirror, I noticed that there was a LOT of data written to them, and they had already gotten half way to their TBW within a few months. It turns out pfSense is quite hard on SSD's, and these SSD's simply weren't durable enough

Overall I did like this setup, and if you follow the above links advise an enable RAMDisk, I can see this being a viable setup. There was no downtime when swapping out the SSD's and rebuilding the mirror

I have a pfSense box with a 2-drive RAID-1 using gmirror. Recently, a drive failed, and I replaced the drive, and the RAID-1 is now back to normal. But this incident also made me interested in setting up a 3-drive RAID-1, just for the extra redundancy. ff782bc1db