I am running a segregated network within Proxmox for product testing on a zero-trust network without modifying my core network. I am seeing a lot of TCP retransmissions on the virtual network.
Network Configuration:
vmbr2 - bonded to nic2 (ip assigned 192.168.50.78 / 192.168.50.1)
Lockdown (linux bridge) - unbonded (ip assigned 192.168.2.2 / 192.168.2.1)
VM: pfSense-Lockdown
pfSense 2.8.1
WAN - NIC attached to vmbr2
LAN - NIC attached to Lockdown
VM: Product Appliance
Ubuntu 22.04 LTS
NIC 1 - attached to Lockdown
NIC 2 - attached to vmbr2 (needs visibility to devices on core network for testing) - No Default GW/DNS, so not internet facing/local LAN only
I have enabled STP on all the Proxmox bridges, as well as all NIC ports on the UniFi switch.
I'm unsure why I'm seeing so many packet retransmissions occurring within a packet trace, as the Lockdown bridge is unbonded, and the only path out is via the pfSense virtual router.
Network Configuration:
vmbr2 - bonded to nic2 (ip assigned 192.168.50.78 / 192.168.50.1)
Lockdown (linux bridge) - unbonded (ip assigned 192.168.2.2 / 192.168.2.1)
VM: pfSense-Lockdown
pfSense 2.8.1
WAN - NIC attached to vmbr2
LAN - NIC attached to Lockdown
VM: Product Appliance
Ubuntu 22.04 LTS
NIC 1 - attached to Lockdown
NIC 2 - attached to vmbr2 (needs visibility to devices on core network for testing) - No Default GW/DNS, so not internet facing/local LAN only
I have enabled STP on all the Proxmox bridges, as well as all NIC ports on the UniFi switch.
I'm unsure why I'm seeing so many packet retransmissions occurring within a packet trace, as the Lockdown bridge is unbonded, and the only path out is via the pfSense virtual router.