Physical NIC assignment for LXC containers in Proxmox 7.2

[Big Hornet]

Hello to all , thx for your help ,

I've just joined the forum, and looking forward to interactions here.

I'd really like to be able to connect one of my containers to a physical NIC on the host (without bridging). In a standard LXC config。

/etc/pve/nodes/pve/lxc/103.conf

arch: amd64
cores: 1
features: nesting=1
hostname: test
memory: 512
ostype: alpine
rootfs: local-lvm:vm-103-disk-0,size=1G
swap: 512
unprivileged: 1
lxc.net.1.link: enp4s0
lxc.net.1.type: phys
lxc.net.1.flags: up
lxc.net.1.name: eth1




Task viewer: CT 103 - start


netdev_configure_server_phys: 1163 No such file or directory - No link for physical interface specified
lxc_create_network_priv: 3413 No such file or directory - Failed to create network device
lxc_spawn: 1843 Failed to create the network
__lxc_start: 2074 Failed to spawn container "103"
TASK ERROR: startup for container '103' failed

CPU(s) 4 x Intel(R) Celeron(R) J4125 CPU @ 2.00GHz (1 Socket)

Kernel Version Linux 5.15.35-1-pve #1 SMP PVE 5.15.35-3 (Wed, 11 May 2022 07:57:51 +0200)

PVE Manager Version pve-manager/7.2-4/ca9d43c

 

[shrdlicka]

Hi, can you post the output of ip link?

 

[bobmc]

Just curiosity.. what are your reasons for not using the bridges?

 

[Big Hornet]

Hi, can you post the output of ip link?

root@pve:~# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
4: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
link/ether c4:83:4f:12:04:1e brd ff:ff:ff:ff:ff:ff
5: enp5s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq master vmbr0 state DOWN mode DEFAULT group default qlen 1000
link/ether c4:83:4f:12:04:1f brd ff:ff:ff:ff:ff:ff
6: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
link/ether c4:83:4f:12:04:1f brd ff:ff:ff:ff:ff:ff
8: tap101i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UNKNOWN mode DEFAULT group default qlen 1000
link/ether 3e:22:50:c4:3e:81 brd ff:ff:ff:ff:ff:ff
10: veth106i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP mode DEFAULT group default qlen 1000
link/ether fe:40:d0:41:06:d6 brd ff:ff:ff:ff:ff:ff link-netnsid 1
51: veth102i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP mode DEFAULT group default qlen 1000
link/ether fe:45:17:56:c7:0b brd ff:ff:ff:ff:ff:ff link-netnsid 3
52: veth108i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP mode DEFAULT group default qlen 1000
link/ether fe:f8:dc:61:94:f3 brd ff:ff:ff:ff:ff:ff link-netnsid 0
54: tap100i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UNKNOWN mode DEFAULT group default qlen 1000
link/ether 26:f9:a9:75:54:31 brd ff:ff:ff:ff:ff:ff

 

[Big Hornet]

Just curiosity.. what are your reasons for not using the bridges?

i want run a openwrt in LXC container, phys type should batter than bridge, i think

 

[bobmc]

Performance difference is negligible

 

[Big Hornet]

Performance difference is negligible

Thanks a bunch