[SOLVED] No outgoing internet on host or LXCs

[A-PVE]

When I installed my Proxmox server, everything worked fine. Both the host and LXCs had internet access, was able to connect to services in my LXCs and able to connect to the outside internet from within the host and LXC.

However, I tried to connect my phone to use as a wireless adapter as a test. During that I think I messed up my network configuration.

Here is the output of 'ifconfig':

enp6s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 00:25:90:10:e6:e0  txqueuelen 1000  (Ethernet)
        RX packets 34593  bytes 7847279 (7.4 MiB)
        RX errors 0  dropped 2  overruns 0  frame 0
        TX packets 25993  bytes 23506434 (22.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xfaee0000-faf00000 

fwbr101i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 62:ba:a0:cb:82:ec  txqueuelen 1000  (Ethernet)
        RX packets 8568  bytes 1290533 (1.2 MiB)
        RX errors 0  dropped 1806  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwbr102i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 7a:89:26:df:88:60  txqueuelen 1000  (Ethernet)
        RX packets 8557  bytes 1289184 (1.2 MiB)
        RX errors 0  dropped 1804  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwbr103i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 52:00:66:1c:05:ac  txqueuelen 1000  (Ethernet)
        RX packets 8549  bytes 1288577 (1.2 MiB)
        RX errors 0  dropped 1803  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwbr104i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 4e:6c:76:47:d2:c5  txqueuelen 1000  (Ethernet)
        RX packets 8541  bytes 1287905 (1.2 MiB)
        RX errors 0  dropped 1802  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwln101i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 92:25:e5:68:90:d8  txqueuelen 1000  (Ethernet)
        RX packets 20022  bytes 3705770 (3.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3587  bytes 14017819 (13.3 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwln102i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 4a:5a:8e:1c:ce:92  txqueuelen 1000  (Ethernet)
        RX packets 10338  bytes 1525688 (1.4 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 569  bytes 49608 (48.4 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwln103i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether ca:dd:f8:41:a6:dc  txqueuelen 1000  (Ethernet)
        RX packets 13027  bytes 2223923 (2.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3264  bytes 325998 (318.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwln104i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether c6:ea:8f:d0:ab:02  txqueuelen 1000  (Ethernet)
        RX packets 10406  bytes 1546592 (1.4 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 752  bytes 71892 (70.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwpr101p0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 16:96:c7:fa:f8:4d  txqueuelen 1000  (Ethernet)
        RX packets 3587  bytes 14017819 (13.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 20022  bytes 3705770 (3.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwpr102p0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 8e:b7:73:8a:c1:6b  txqueuelen 1000  (Ethernet)
        RX packets 569  bytes 49608 (48.4 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 10338  bytes 1525688 (1.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwpr103p0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 2e:ca:c9:45:da:b6  txqueuelen 1000  (Ethernet)
        RX packets 3264  bytes 325998 (318.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13027  bytes 2223923 (2.1 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

fwpr104p0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 46:96:9f:bd:c9:2c  txqueuelen 1000  (Ethernet)
        RX packets 752  bytes 71892 (70.2 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 10406  bytes 1546592 (1.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 4946  bytes 1048874 (1.0 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4946  bytes 1048874 (1.0 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

veth101i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether fe:ca:7f:7e:61:29  txqueuelen 1000  (Ethernet)
        RX packets 3587  bytes 14017819 (13.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 20014  bytes 3704507 (3.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

veth102i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether fe:39:b5:ea:3c:35  txqueuelen 1000  (Ethernet)
        RX packets 569  bytes 49608 (48.4 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 10336  bytes 1525538 (1.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

veth103i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether fe:00:e3:51:bf:9c  txqueuelen 1000  (Ethernet)
        RX packets 3264  bytes 325998 (318.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13016  bytes 2222956 (2.1 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

veth104i0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether fe:91:e5:94:2c:2a  txqueuelen 1000  (Ethernet)
        RX packets 752  bytes 71892 (70.2 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 10388  bytes 1544839 (1.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vmbr0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.55  netmask 255.255.255.0  broadcast 0.0.0.0
        inet6 fe80::225:90ff:fe10:e6e0  prefixlen 64  scopeid 0x20<link>
        ether 00:25:90:10:e6:e0  txqueuelen 1000  (Ethernet)
        RX packets 18657  bytes 4299555 (4.1 MiB)
        RX errors 0  dropped 1887  overruns 0  frame 0
        TX packets 6437  bytes 8286609 (7.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

and /etc/network/interfaces:

auto lo
iface lo inet loopback

auto enp6s0
iface enp6s0 inet manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.0.XX/XX
        gateway 192.168.X.X
        bridge-ports enp6s0
        bridge-stp off
        bridge-fd 0

I've tried reconfiguring my interfaces but no luck. Also tried ifup vmbr0 but also not working. Any help would great, feel like I'm going round in circles.

Thanks

 

[Pifouney]

hey,

What 's the situation ? Did you trying with you're phone again ? Or did you try to return to initial configuration ?

 

[A-PVE]

No i didn't try connecting my phone again. I think what happened is during the process of trying to connect through a usb tether, my DNS nameservers stopped resolving properly. I followed this guide and it started working again.

https://unix.stackexchange.com/ques...-my-dns-when-resolv-conf-is-being-overwritten

 

[Pifouney]

No i didn't try connecting my phone again. I think what happened is during the process of trying to connect through a usb tether, my DNS nameservers stopped resolving properly. I followed this guide and it started working again.

https://unix.stackexchange.com/ques...-my-dns-when-resolv-conf-is-being-overwritten

Don't forguet to pass your post to solved please