Re: VMs as real hosts on the same network

> On 7 Dec 2018, at 11:35, mabi <mabi@protonmail.ch> wrote:
>
> Hello,
>
> I am trying out VMM on an OpenBSD 6.4 server which has the following network interfaces defined:
>
> [bnx0]+[bnx1]-->[trunk0]-->[vlan2]
> [bnx0]+[bnx1]-->[trunk0]-->[vlan6]-->[bridge6]
>
> The vlan2 is for the internal (management) network and vlan6 for the public (internet) network. I manage my server from vlan2 and would like to have my virtual machines on vlan6 which uses public IP addresses. For that purpose I have setup my /etc/hostname.* files as such:
>
> hostname.bnx0 + hostname.bnx1:
> up
>
> hostname.trunk0:
> trunkproto failover trunkport bnx0 trunkport bnx1 up
>
> hostname.vlan2:
> inet 192.168.1.5 255.255.255.0 192.168.1.255 vnetid 2 parent trunk0 description "private"
>
> hostname.vlan6:
> vnetid 6 parent trunk0 description "public" up
>
> hostname.bridge6:
> add vlan6
>

It might be as easy as adding: up

# cat /etc/hostname.bridge6
add vlan6
up

By default the bridge interface is not brought up.
You can also run: ifconfig bridge6 up

This will most likely be the "problem".

Mischa

> I am actually using Option 4 from the Networking chapter in the virtualization FAQ (https://www.openbsd.org/faq/faq16.html) just that my setup has a redundant link (trunk0) and a VLAN (vlan6). So in theory that should work but unfortunately when I start a VM to install OpenBSD 6.4 from the bsd.rd boot file I do not have any network connectivity. I tried with DHCP first and in that case on the DHCP server I see the DHCPDISCOVER and DHCPOFFER requests/answer but there is never a DHCPACK. Then I tried assigning a static IP directly but still no network connectivity. I can't ping the default gateway of that public network. Checking with tcpdump on the firewall I can see the ARP who-has request and the ARP reply back the the VM but again it seems like the VM does not get it.
>
> Here is my vm.conf conf file:
>
> switch "uplink_vlan6" {
> interface bridge6
> }
>
> vm "example" {
> disable
> memory 2G
> boot "/home/admin/bsd.rd"
> disk "/var/vmm/example.qcow2"
>
> interface {
> switch "uplink_vlan6"
> lladdr fe:e1:bb:01:01:01
> }
> }
>
> I have also totally disabled pf on that OpenBSD VMM server but that did not change anything (I am using the default pf.conf from the installation)
>
> Any ideas what I might be doing wrong or forgetting?
>
> Regards,
> Mabi
>