pfSense interfering with ssh session to virtual machines?

hypernova

Hi,

Posting here because I'm not sure if this question should go under another section.

Firstly, I am not 100 % sure this is a pfSense issue, I just have a hunch that it might be.

Here is my situation: I have a server running some VMs. My ssh sessions to those VMs keep being terminated after a short period of time (a few seconds to a minute, approximatly).

I have set options on server and client side such as Server/ClientAliveInterval/Count. These are ssh options to prevent the connection from terminating by sending a packet every <XYZ> interval time. (You are probably already aware.)

I have never had a problem with ssh on my network until I recently started using pfSense.

Here's what I know so far...

From the state tables, I can see this, when I connect via ssh from my workstation to my server:

Seems normal?

This is what I see when I connect via ssh from my workstation to my VM, which runs inside the server:

I really don't know enough technical detail to interpret what this means, or what misconfiguration this might point to.

Like I say, not 100 % sure it is a pfSense issue, only fairly confident.

Here's some details about what I have setup on pfSense.

1: Gateway to VMs it set as follows:

2: Static route to VMs is set as follows:

3: IP assignments:

Workstation: 192.168.10.100

Server (VM host): 192.168.10.101

VMs: 192.168.100.184 (random DHCP address on the virtual network 192.168.100.0)

I hope that is enough useful info to start with?

What else should I check / look for to further diagnose this?

hypernova

Oh, additionally here is the firewall info for LAN2:

hypernova

Just trying to add as much potentially useful info here: Here's two traceroutes in both directions.

Run on workstation: traceroute to VM

traceroute to 192.168.100.184 (192.168.100.184), 30 hops max, 60 byte packets
 1  192.168.10.1 (192.168.10.1)  1.207 ms  1.173 ms  1.158 ms
 2  server.localdomain (192.168.10.101)  1.196 ms  1.199 ms  1.198 ms
 3  192.168.100.184 (192.168.100.184)  1.459 ms  1.473 ms  1.461 ms

Run on VM: traceroute to workstation

traceroute to 192.168.10.100 (192.168.10.100), 30 hops max, 60 byte packets
 1  192.168.100.1 (192.168.100.1)  0.154 ms  0.130 ms  0.117 ms
 2  workstation.localdomain (192.168.10.100)  1.105 ms  1.097 ms  1.085 ms