Proxmox does not have internet access, but CT's and VM's have

S

svarog

New Member
Jul 3, 2024
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Hello :)

I have recently changed network adapter on my proxmox machine. I plugged a new eth adapter into the usb port, changed /etc/network/interfaces adapter and rebooted the machine. Everything was fine, but now I cannot access internet from proxmox console and cannot download any ct template, but all my ct's and vm's have internet access.

Where did I go wrong?
Can somebody help me to understand what is the problem and how to fix it?

thanks
 
Please show all your changes and the dmesg output for alle Ethernetdevices.

ip addr show
ip route show
 
Last edited:
news said:
Please show all your changes and the dmesg output for alle Ethernetdevices.

ip addr show
ip route show
Click to expand...
ip addr show

Bash: 
root@proxmox:~# ip addr show
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: enp4s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 3c:cd:36:64:3a:d8 brd ff:ff:ff:ff:ff:ff
3: enx00e04c3615c0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UP group default qlen 1000
    link/ether 00:e0:4c:36:15:c0 brd ff:ff:ff:ff:ff:ff
4: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:e0:4c:36:15:c0 brd ff:ff:ff:ff:ff:ff
    inet 192.168.88.75/24 scope global vmbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::2e0:4cff:fe36:15c0/64 scope link
       valid_lft forever preferred_lft forever
5: tap100i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UNKNOWN group default qlen 1000
    link/ether 9a:07:fa:c3:03:9f brd ff:ff:ff:ff:ff:ff
6: veth101i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr101i0 state UP group default qlen 1000
    link/ether fe:36:80:d6:31:93 brd ff:ff:ff:ff:ff:ff link-netnsid 0
7: fwbr101i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether ba:ee:29:e2:14:15 brd ff:ff:ff:ff:ff:ff
8: fwpr101p0@fwln101i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether fa:2b:72:19:4b:4f brd ff:ff:ff:ff:ff:ff
9: fwln101i0@fwpr101p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr101i0 state UP group default qlen 1000
    link/ether ba:ee:29:e2:14:15 brd ff:ff:ff:ff:ff:ff


ip route show


Bash: 
root@proxmox:~# ip route show
default via 192.168.88.1 dev vmbr0 proto kernel onlink
192.168.88.0/24 dev vmbr0 proto kernel scope link src 192.168.88.75

fun part is that I can access proxmox via web without any problems, but it's shell cannot ping anything, not even the router...
 
Last edited:
the problem was with my ARP list and the router, I wasn't clear the entry for the old mac address that was assigned to the pxomox IP.

Thanks for the help <3
 
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