[SOLVED] Setting up a bridge with two LAN connections

Huskynarr

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Dec 31, 2022
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I need some help because the network world is still relatively new to me.

I have another new server, but unfortunately no more network ports are free. So I thought it should be possible to configure my first server as a bridge. It has two network ports.

My topology would look like this:
Home Network - Topology.png


The network naming of Proxmox irritates me somewhat (as I said, I'm new to this environment).

The vmbr0 is already a bridge? But this accesses enp60s0. So enp60s0 would be one of the two network adapters?
Is the eno1 the second adapter or was the second one not initialized?


1715770196091.png

My network interface looks like this:

Code:
# network interface settings; autogenerated
# Please do NOT modify this file directly, unless you know what
# you're doing.
#
# If you want to manage parts of the network configuration manually,
# please utilize the 'source' or 'source-directory' directives to do
# so.
# PVE will preserve these directives, but will NOT read its network
# configuration from sourced files, so do not attempt to move any of
# the PVE managed interfaces into external files!

auto lo
iface lo inet loopback

auto enp60s0
iface enp60s0 inet manual

iface eno1 inet manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.10.36/24
        gateway 192.168.10.1
        bridge-ports enp60s0
        bridge-stp off
        bridge-fd 0

For the sake of completeness, here is my current ip addr output:

Code:
ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether c8:60:00:cc:b3:43 brd ff:ff:ff:ff:ff:ff
    altname enp0s25
    inet6 fe80::ca60:ff:fecc:b343/64 scope link
       valid_lft forever preferred_lft forever
3: enp60s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UP group default qlen 1000
    link/ether c8:60:00:cc:b5:73 brd ff:ff:ff:ff:ff:ff
4: wlp55s0b1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 94:db:c9:9f:4e:f6 brd ff:ff:ff:ff:ff:ff
    inet 192.168.10.159/24 brd 192.168.10.255 scope global dynamic noprefixroute wlp55s0b1
       valid_lft 862409sec preferred_lft 862409sec
    inet6 2a10:4440:fff:3d90:805f:b30c:f184:d7a1/64 scope global dynamic noprefixroute
       valid_lft 7114sec preferred_lft 3514sec
    inet6 fe80::69e4:ae48:b7f5:9fd8/64 scope link noprefixroute
       valid_lft forever preferred_lft forever
5: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether c8:60:00:cc:b5:73 brd ff:ff:ff:ff:ff:ff
    inet 192.168.10.36/24 scope global vmbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::ca60:ff:fecc:b573/64 scope link
       valid_lft forever preferred_lft forever
6: tap100i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr100i0 state UNKNOWN group default qlen 1000
    link/ether fe:62:fa:d2:e5:26 brd ff:ff:ff:ff:ff:ff
7: fwbr100i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 4a:e9:07:d9:51:b6 brd ff:ff:ff:ff:ff:ff
8: fwpr100p0@fwln100i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether ea:a8:35:53:a4:09 brd ff:ff:ff:ff:ff:ff
9: fwln100i0@fwpr100p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr100i0 state UP group default qlen 1000
    link/ether 4a:e9:07:d9:51:b6 brd ff:ff:ff:ff:ff:ff
10: tap102i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr102i0 state UNKNOWN group default qlen 1000
    link/ether 7a:bf:ce:19:35:23 brd ff:ff:ff:ff:ff:ff
11: fwbr102i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether d6:7f:43:ce:3c:cd brd ff:ff:ff:ff:ff:ff
12: fwpr102p0@fwln102i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether e6:a6:5f:c2:10:48 brd ff:ff:ff:ff:ff:ff
13: fwln102i0@fwpr102p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr102i0 state UP group default qlen 1000
    link/ether d6:7f:43:ce:3c:cd brd ff:ff:ff:ff:ff:ff
14: tap103i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr103i0 state UNKNOWN group default qlen 1000
    link/ether 96:f8:a3:5d:02:97 brd ff:ff:ff:ff:ff:ff
15: fwbr103i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 3e:f3:b3:a6:fc:1f brd ff:ff:ff:ff:ff:ff
16: fwpr103p0@fwln103i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether e6:71:c0:59:89:c6 brd ff:ff:ff:ff:ff:ff
17: fwln103i0@fwpr103p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr103i0 state UP group default qlen 1000
    link/ether 3e:f3:b3:a6:fc:1f brd ff:ff:ff:ff:ff:ff
18: tap105i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr105i0 state UNKNOWN group default qlen 1000
    link/ether 82:0b:fc:fd:c1:34 brd ff:ff:ff:ff:ff:ff
19: fwbr105i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether ea:6b:f7:37:90:97 brd ff:ff:ff:ff:ff:ff
20: fwpr105p0@fwln105i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether 06:51:77:93:dc:d3 brd ff:ff:ff:ff:ff:ff
21: fwln105i0@fwpr105p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr105i0 state UP group default qlen 1000
    link/ether ea:6b:f7:37:90:97 brd ff:ff:ff:ff:ff:ff
22: tap109i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr109i0 state UNKNOWN group default qlen 1000
    link/ether ea:10:76:dd:72:e9 brd ff:ff:ff:ff:ff:ff
23: fwbr109i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 56:af:0c:79:34:7c brd ff:ff:ff:ff:ff:ff
24: fwpr109p0@fwln109i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether 56:e9:ea:c0:41:26 brd ff:ff:ff:ff:ff:ff
25: fwln109i0@fwpr109p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr109i0 state UP group default qlen 1000
    link/ether 56:af:0c:79:34:7c brd ff:ff:ff:ff:ff:ff
26: tap113i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr113i0 state UNKNOWN group default qlen 1000
    link/ether be:4f:8f:90:f7:db brd ff:ff:ff:ff:ff:ff
27: fwbr113i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 6a:64:f7:42:63:79 brd ff:ff:ff:ff:ff:ff
28: fwpr113p0@fwln113i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether ca:4c:6d:2b:03:2d brd ff:ff:ff:ff:ff:ff
29: fwln113i0@fwpr113p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr113i0 state UP group default qlen 1000
    link/ether 6a:64:f7:42:63:79 brd ff:ff:ff:ff:ff:ff

My previous attempts to create a bridge have only ever broken the network. I then always set it back to the source.


Solved: Added eno1 to the bridge.

1715777760331.png
 
Last edited:

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