| Summary: | [Hyper-V] ng_vlan on hn interface not forwarding packets | ||
|---|---|---|---|
| Product: | Base System | Reporter: | Reshad Patuck <reshadpatuck1> |
| Component: | misc | Assignee: | freebsd-virtualization (Nobody) <virtualization> |
| Status: | New --- | ||
| Severity: | Affects Only Me | CC: | decui, lwhsu, weh, whu |
| Priority: | --- | ||
| Version: | 12.1-RELEASE | ||
| Hardware: | amd64 | ||
| OS: | Any | ||
| Attachments: | |||
Created attachment 216975 [details]
PowerShell commands to set Hyper-V to trunk VLANs
Created attachment 216976 [details]
Shell script to create if_vlan interface and jail on the VLAN
This script works, The jail can connect out and systems can connect to the jail
Created attachment 216977 [details]
Shell script to create ng_vlan interface and jail on the VLAN
This scrpt does not work, the jail can not connect our nor can an external system connect to the jail.
|
Created attachment 216974 [details] Script to create a base jail on a FreeBSD 12.1 VM I am trying to use ng_vlan on Hyper-V to deploy vnet jails. The "Enable MAC address Spoofing" setting on the Hyper-V host is enabled. However when I try to use ng_vlan I am not able to reach the jail. If I change this to if_vlan instead everything works fine. Here are the symptoms for an ng_vlan jail with a static IP when I try to ping it. - The arp request from the gateway is visible on hn1, the vlan interface (hn1vl50), the bridge interface (hn1vl50br) and the epair interface inside the jail. - The outbound arp response is visible on the same interfaces - Wireshark on the interface with the trunked vlans on windows (Ethernet 1) does not see any ARP response (I can see the requests) - The gateway does not see the arp response and continues to send arp requests for the IP Is there something that creating a VLAN using ifconfig does to the interface that ng_vlan does not? The same setup works well on VMware ESXi, Xen and KVM. I am not sure if this is relevant to my issue but the hn1 devices sysrc's changes when I use different methods to set vlans on bsd: no vlan: dev.hn.1.rxfilter: 9<DIRECT,BROADCAST> dev.hn.1.hwassist: 17<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP_TSO> if_vlan: dev.hn.1.rxfilter: 20<PROMISC> dev.hn.1.hwassist: 17<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP_TSO> ng_vlan: dev.hn.1.rxfilter: 9<DIRECT,BROADCAST> dev.hn.1.hwassist: 0 All the other sysrc's either stay the same or seem to be counters. I have attached: - A shell script to setup everything from a default zfs install of FreeBSD 12.1 - The powershell commands I use to setup VLANs on Hyper-V - A shell script to setup vnet jails using both ng_vlan and if_vlan on a Hyper-V VM with 2 hn interfaces. Any help understanding what these sysrc's do, and on how I could get ng_vlan to work would be very appreciated. I have tested this on Hyper-V on Windows Server 2012 R2 and Windows Server 2016.