Hi there, I have a question regarding direct type interfaces. Would someone be able to take a look at it? When I start 2 VMs on the same host with interface "direct type + bridge mode", just as below: <interface type="direct"> <mac address="52:54:00:9e:7b:51"/> <source dev="eno1" mode="bridge"/> <model type="virtio"/> </interface> The 2 VMs can connect to each other via ipv4, but can not connect to each other via ipv6. Maybe it's related to some kernel parameters, but I don't know how to debug. Is there anyone who can help me? Thank you! BR, Yalan
Hi there, Finally I got the answer from google search, refer to https://blog.flyingpenguintech.org/2017/12/ipv6-with-macvtap-and-libvirt.htm... This is expected. With trustGuestRxFilters="yes", ipv6 works well. # virsh dumpxml vm1 --xpath //interface <interface type="direct" trustGuestRxFilters="yes"> <mac address="52:54:00:f5:0d:b1"/> <source dev="eno1" mode="bridge"/> <target dev="macvtap1"/> <model type="virtio"/> <alias name="net0"/> <address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/> </interface> BR, Yalan On Tue, Jul 11, 2023 at 9:48 AM Yalan Zhang <yalzhang@redhat.com> wrote:
Hi there,
I have a question regarding direct type interfaces. Would someone be able to take a look at it? When I start 2 VMs on the same host with interface "direct type + bridge mode", just as below: <interface type="direct"> <mac address="52:54:00:9e:7b:51"/> <source dev="eno1" mode="bridge"/> <model type="virtio"/> </interface>
The 2 VMs can connect to each other via ipv4, but can not connect to each other via ipv6. Maybe it's related to some kernel parameters, but I don't know how to debug. Is there anyone who can help me? Thank you!
BR, Yalan
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Yalan Zhang