No network when switching to 10GBe Interface

x-ringguy

New Member
Apr 6, 2025
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I have a minisforum MS-01 (3 actually) and I'm trying to switch interfaces from RJ45 to SFP+ with a DAC. Everything looks up when I make the change, but I'm not able to ping the gateway.

A few things I've done for troubleshooting:
  • Changed switch ports
  • Changed DAC
  • Changed ports on server
  • Confirmed MAC address shows up in ARP table on router
  • Got rid of vmbr0 and used enp2s0f0np0 - still no ping to the default gateway
  • Tried different static IP address
  • Tried DHCP - never received an IP address
I'm stuck as to what to do next to troubleshoot. Any ideas?


Original /etc/network/interfaces:
Code:
auto lo
iface lo inet loopback

iface en05 inet manual
#DO NOT EDIT IN GUI             

iface en06 inet manual
#DO NOT EDIT IN GUI             


iface enp87s0 inet manual

iface enp90s0 inet manual

iface enp2s0f0np0 inet manual

iface enp2s0f1np1 inet manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.31.23/24
        gateway 192.168.31.1
        bridge-ports enp87s0
        bridge-stp off
        bridge-fd 0


iface wlp91s0 inet manual


source /etc/network/interfaces.d/*

Ind the original ip a:
Code:
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 fc00::83/128 scope global
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp87s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master vmbr0 state UP group default qlen 1000
    link/ether 58:47:ca:7b:f1:84 brd ff:ff:ff:ff:ff:ff
3: enp90s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 58:47:ca:7b:f1:85 brd ff:ff:ff:ff:ff:ff
4: enp2s0f0np0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 58:47:ca:7b:f1:82 brd ff:ff:ff:ff:ff:ff
5: enp2s0f1np1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 58:47:ca:7b:f1:83 brd ff:ff:ff:ff:ff:ff
6: wlp91s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 3c:c5:dd:89:80:2f brd ff:ff:ff:ff:ff:ff
10: en06: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 02:30:eb:c5:f5:14 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::30:ebff:fec5:f514/64 scope link
       valid_lft forever preferred_lft forever
23: en05: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 02:4a:96:c4:4e:b1 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::4a:96ff:fec4:4eb1/64 scope link
       valid_lft forever preferred_lft forever
28: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 58:47:ca:7b:f1:84 brd ff:ff:ff:ff:ff:ff
    inet 192.168.31.23/24 scope global vmbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::5a47:caff:fe7b:f184/64 scope link
       valid_lft forever preferred_lft forever


This is the updated /etc/network/interfaces:
Code:
auto lo
iface lo inet loopback

iface en05 inet manual
#DO NOT EDIT IN GUI             

iface en06 inet manual
#DO NOT EDIT IN GUI             


iface enp87s0 inet manual

iface enp90s0 inet manual

iface enp2s0f0np0 inet manual

iface enp2s0f1np1 inet manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.31.23/24
        gateway 192.168.31.1
        bridge-ports enp2s0f0np0
        bridge-stp off
        bridge-fd 0


iface wlp91s0 inet manual


source /etc/network/interfaces.d/*

And the updated ip a:
Code:
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 fc00::83/128 scope global
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp87s0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 58:47:ca:7b:f1:84 brd ff:ff:ff:ff:ff:ff
3: enp90s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 58:47:ca:7b:f1:85 brd ff:ff:ff:ff:ff:ff
4: enp2s0f0np0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master vmbr0 state UP group default qlen 1000
    link/ether 58:47:ca:7b:f1:82 brd ff:ff:ff:ff:ff:ff
5: enp2s0f1np1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 58:47:ca:7b:f1:83 brd ff:ff:ff:ff:ff:ff
6: wlp91s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 3c:c5:dd:89:80:2f brd ff:ff:ff:ff:ff:ff
10: en06: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 02:30:eb:c5:f5:14 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::30:ebff:fec5:f514/64 scope link
       valid_lft forever preferred_lft forever
23: en05: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 02:4a:96:c4:4e:b1 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::4a:96ff:fec4:4eb1/64 scope link
       valid_lft forever preferred_lft forever
29: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 58:47:ca:7b:f1:82 brd ff:ff:ff:ff:ff:ff
    inet 192.168.31.23/24 scope global vmbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::5a47:caff:fe7b:f182/64 scope link
       valid_lft forever preferred_lft forever