Dear list,
I am trying to create an access port on a VM to connect to VLAN (20 in my case). I am
pretty sure my router and switch are setup correctly. I can assign my host machine
(hypervisor) an IP address on either VLAN1 or VLAN20 by changing the configuration; in
other words, it is connected to the switch via a trunk port.
The host machine runs on Debian 12, has ifupdown2 installed, 8021q module is loaded at
boot and its /etc/network/interfaces file reads as follows:
auto lo
iface lo inet loopback
# bond interface
auto bond0
iface bond0 inet manual
bond-slaves enp5s0 enp6s0
bond-mode 802.3ad
bond-xmit-hash-policy layer2+3
bond-miimon 100
bond-lacp-rate 1
bond-vlan-aware yes
bond-vids 2-500
# vlan 1
auto bridge0.1
iface bridge0.1 inet static
address 192.168.1.130/24
gateway 192.168.1.1
# bridge interface
auto bridge0
iface bridge0 inet manual
bridge-ports bond0
bridge_stp on
bridge_fd 2
bridge_maxwait 0
bridge-vlan-aware yes
bridge-vids 2-500
source-directory /etc/network/interfaces.d
EOF
The host gets an IP address of 192.168.1.130 from VLAN1, as intended, by these settings.
VM1 (also Debian 12) is connected to bridge0, which is designed as a trunk bridge, and CAN
get an IP address in the 192.168.1.0/24 network (aka VLAN1), but CANNOT get an IP address
in the 192.168.20.0/24 network 9aka VLAN20). VMs network interface is named as enp1s0 and
I tried creating an interface named enp1s0.20 in its own /etc/network/interfaces file
without any change in behavior. It just does not connect to VLAN20, no matter what I
tried. What am I missing? I am very thankful for the pointers, and will be happy to
provide further information, try recommended settings and report back.
Best!