Hi,
I installed the latest version of proxmox ve 9.0.3 (from the iso) on my minipc (that has 2 ethernet ports). I setup my router (ip 192.168.0.1) with a permanent ip assignment to the first ethernet port (192.168.0.7) and configured it as the management port. No other machine on the network has the same ip. I was initially able to ping the gateway at 192.168.0.1 as well as external ips (google.com) from the host with no problem, and was able to download and install a debian container. However, after some time, the connection to the gateway went dead, and I'm unable to ping/connect to the gateway or to any external ip. I'm still able to ping other machines on the same network and the container. I'm able to ping the host from other machines on the network and the container, access the host through the proxmox web interface, and ssh into the host from other machines on the network. I'm also able to ping the gateway and external ips from the container. Just the host -> gateway -> external seems dead. Rebooting the host has no effect.
Some logs:
Unable to ping the gateway:
Able to ping another machine on the same network:
Also able to ping a container:
Able to ping the gateway from the container:
I've seen a number of posts with similar problems, but none of them seem to lead to a solution or what could possibly be the problem. Any help is very much appreciated.
Thank you!
I installed the latest version of proxmox ve 9.0.3 (from the iso) on my minipc (that has 2 ethernet ports). I setup my router (ip 192.168.0.1) with a permanent ip assignment to the first ethernet port (192.168.0.7) and configured it as the management port. No other machine on the network has the same ip. I was initially able to ping the gateway at 192.168.0.1 as well as external ips (google.com) from the host with no problem, and was able to download and install a debian container. However, after some time, the connection to the gateway went dead, and I'm unable to ping/connect to the gateway or to any external ip. I'm still able to ping other machines on the same network and the container. I'm able to ping the host from other machines on the network and the container, access the host through the proxmox web interface, and ssh into the host from other machines on the network. I'm also able to ping the gateway and external ips from the container. Just the host -> gateway -> external seems dead. Rebooting the host has no effect.
Some logs:
root@proxmoxhost:~# cat /etc/network/interfacesauto loiface lo inet loopbackiface eno1 inet manualauto vmbr0iface vmbr0 inet static address 192.168.0.7/24 gateway 192.168.0.1 bridge-ports eno1 bridge-stp off bridge-fd 0iface enp4s0 inet manualiface wlp5s0 inet manualsource /etc/network/interfaces.d/*root@proxmoxhost:~# ip a1: 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 forever2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master vmbr0 state UP group default qlen 1000 link/ether c8:ff:bf:05:1e:d8 brd ff:ff:ff:ff:ff:ff altname enp3s0 altname enxc8ffbf051ed83: enp4s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether c8:ff:bf:05:1e:d9 brd ff:ff:ff:ff:ff:ff altname enxc8ffbf051ed94: wlp5s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether ec:8e:77:67:07:b4 brd ff:ff:ff:ff:ff:ff altname wlxec8e776707b45: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether c8:ff:bf:05:1e:d8 brd ff:ff:ff:ff:ff:ff inet 192.168.0.7/24 scope global vmbr0 valid_lft forever preferred_lft forever inet6 fe80::caff:bfff:fe05:1ed8/64 scope link proto kernel_ll valid_lft forever preferred_lft forever14: veth100i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr100i0 state UP group default qlen 1000 link/ether fe:72:d0:04:e9:6a brd ff:ff:ff:ff:ff:ff link-netnsid 015: fwbr100i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 32:02:7a:41:f8:dd brd ff:ff:ff:ff:ff:ff16: fwpr100p0@fwln100i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000 link/ether aa:6d:6d:3d:40:78 brd ff:ff:ff:ff:ff:ff17: fwln100i0@fwpr100p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr100i0 state UP group default qlen 1000 link/ether 32:02:7a:41:f8:dd brd ff:ff:ff:ff:ff:ffUnable to ping the gateway:
root@proxmoxhost:~# ping 192.168.0.1PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.^C--- 192.168.0.1 ping statistics ---4 packets transmitted, 0 received, 100% packet loss, time 3051msAble to ping another machine on the same network:
root@proxmoxhost:~# ping anothermachinePING anothermachine.my.domain (192.168.0.10) 56(84) bytes of data.64 bytes from anothermachine.my.domain (192.168.0.10): icmp_seq=1 ttl=64 time=0.490 ms64 bytes from anothermachine.my.domain (192.168.0.10): icmp_seq=2 ttl=64 time=0.182 ms64 bytes from anothermachine.my.domain (192.168.0.10): icmp_seq=3 ttl=64 time=1.27 ms64 bytes from anothermachine.my.domain (192.168.0.10): icmp_seq=4 ttl=64 time=1.30 ms64 bytes from anothermachine.my.domain (192.168.0.10): icmp_seq=5 ttl=64 time=0.974 ms^C--- anothermachine.my.domain ping statistics ---5 packets transmitted, 5 received, 0% packet loss, time 4045msrtt min/avg/max/mdev = 0.182/0.842/1.298/0.439 msAlso able to ping a container:
root@proxmoxhost:~# ping proxmoxcontainerPING proxmoxcontainer.my.domain (192.168.0.9) 56(84) bytes of data.64 bytes from pi.hole (192.168.0.9): icmp_seq=1 ttl=64 time=0.042 ms64 bytes from pi.hole (192.168.0.9): icmp_seq=2 ttl=64 time=0.112 ms64 bytes from pi.hole (192.168.0.9): icmp_seq=3 ttl=64 time=0.112 ms64 bytes from pi.hole (192.168.0.9): icmp_seq=4 ttl=64 time=0.114 ms64 bytes from pi.hole (192.168.0.9): icmp_seq=5 ttl=64 time=0.111 ms^C--- proxmoxcontainer.my.domain ping statistics ---5 packets transmitted, 5 received, 0% packet loss, time 4101msrtt min/avg/max/mdev = 0.042/0.098/0.114/0.028 msAble to ping the gateway from the container:
root@proxmoxcontainer:~# ping 192.168.0.1PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.64 bytes from 192.168.0.1: icmp_seq=1 ttl=63 time=0.825 ms64 bytes from 192.168.0.1: icmp_seq=2 ttl=63 time=1.12 ms64 bytes from 192.168.0.1: icmp_seq=3 ttl=63 time=1.31 ms64 bytes from 192.168.0.1: icmp_seq=4 ttl=63 time=0.473 ms64 bytes from 192.168.0.1: icmp_seq=5 ttl=63 time=1.29 ms^C--- 192.168.0.1 ping statistics ---5 packets transmitted, 5 received, 0% packet loss, time 4032msrtt min/avg/max/mdev = 0.473/1.004/1.310/0.317 msI've seen a number of posts with similar problems, but none of them seem to lead to a solution or what could possibly be the problem. Any help is very much appreciated.
Thank you!
Last edited: