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ESXI Slow ethernet passthrough

  • 1.  ESXI Slow ethernet passthrough

    Posted Nov 11, 2023 02:18 AM

    Good afternoon,

    I have a Sophos firewall installed on a VM within ESXI 8.0 running on a R720 HD "I know i know but its a home lab". My plan is to hopefully route all of my network traffic through this VM. 

    I have 2 vports and matching vswitch's one being WAN other being LAN. The virtual machines connected get my average 500/20 Down/up while any devices connected to the passthrough can only get 70/20mbps.

    Steps taken to attempt to solve the issue include Downgrading to a compatible ESXI version for my server, Updated BIOS, IDRAC, NIC, and all other possible updates, adjusted MTU on vswitches. These are the things i could think of off the top of my head. 

    It is not the Sophos firewall due to the fact that any VM connected to the same Vswitch as my physical switch gets full speed but the physical switch does not. 

    NIC is 10gb compatible.


    Thanks for any help in advance