Date: Mon, 03 Aug 2020 06:02:14 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 248442] [Hyper-V] ng_vlan on hn interface not forwarding packets Message-ID: <bug-248442-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248442 Bug ID: 248442 Summary: [Hyper-V] ng_vlan on hn interface not forwarding packets Product: Base System Version: 12.1-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: misc Assignee: bugs@FreeBSD.org Reporter: reshadpatuck1@gmail.com Created attachment 216974 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=216974&action=edit 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. -- You are receiving this mail because: You are the assignee for the bug.help
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