no internet on host

[purk]

clean 6.3 install with no internet on host.
can ping internal hosts and router, external is a nono
tried disabling firewall (empty config) without success
internet can be accessed from CTs

any ideas?

config:

root@oracle:~# nslookup proxmox.com
Server: 192.168.178.1
Address: 192.168.178.1#53

Non-authoritative answer:
Name: proxmox.com
Address: 212.224.123.69

auto lo
iface lo inet loopback

iface eno1 inet manual

auto vmbr0
iface vmbr0 inet static
address 192.168.178.200/24
gateway 192.168.187.1
bridge-ports eno1
bridge-stp off
bridge-fd 0

root@oracle:~# ip route
default via 192.168.187.1 dev vmbr0 onlink
192.168.178.0/24 dev vmbr0 proto kernel scope link src 192.168.178.200

 

[Moayad]

Hi,

Did you have internet before you build VMs?

Check resolv.conf and systemctl status networking.service. Also, please post the output of ip a

 

[purk]

i haven't had internet on the host from the start. only noticed when trying to download a CT template and started troubleshooting from there.

root@oracle:~# cat /etc/resolv.conf
search dns.fritz.box
nameserver 192.168.178.1

root@oracle:~# ip a
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
valid_lft forever preferred_lft forever
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UP group default qlen 1000
link/ether 94:c6:91:a1:e9:46 brd ff:ff:ff:ff:ff:ff
3: wlp58s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether b4:6b:fc:b1:95:4a 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 94:c6:91:a1:e9:46 brd ff:ff:ff:ff:ff:ff
inet 192.168.178.200/24 brd 192.168.178.255 scope global vmbr0
valid_lft forever preferred_lft forever
inet6 fe80::96c6:91ff:fea1:e946/64 scope link
valid_lft forever preferred_lft forever
9: veth100i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr100i0 state UP group default qlen 1000
link/ether fe:8b:c2:23:72:a7 brd ff:ff:ff:ff:ff:ff link-netnsid 0
10: fwbr100i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 32:77:15:b7:e8:e4 brd ff:ff:ff:ff:ff:ff
11: fwpr100p0@fwln100i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
link/ether a2:5f:56:1e:da:7d brd ff:ff:ff:ff:ff:ff
12: fwln100i0@fwpr100p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr100i0 state UP group default qlen 1000
link/ether 32:77:15:b7:e8:e4 brd ff:ff:ff:ff:ff:ff

root@oracle:~# systemctl status networking.service
● networking.service - Raise network interfaces
Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
Active: active (exited) since Mon 2021-02-01 01:18:48 CET; 19h ago
Docs: man:interfaces(5)
Process: 547 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=0/SUCCESS)
Main PID: 547 (code=exited, status=0/SUCCESS)

Feb 01 01:18:48 oracle systemd[1]: Starting Raise network interfaces...
Feb 01 01:18:48 oracle ifup[547]: Waiting for vmbr0 to get ready (MAXWAIT is 2 seconds).
Feb 01 01:18:48 oracle systemd[1]: Started Raise network interfaces.

when trying nslookup using an external server i also get a timeout:

root@oracle:~# nslookup google.com 8.8.8.8
;; connection timed out; no servers could be reached

root@oracle:~# nslookup google.com
Server: 192.168.178.1
Address: 192.168.178.1#53

Non-authoritative answer:
Name: google.com
Address: 142.250.179.142
Name: google.com
Address: 2a00:1450:400e:801::200e

tried different values in resolv.conf, even external DNS without success. nslookups on local DNS resolve immediatly.

 

[Moayad]

Hi,

check if any device has the same IP as your Proxmox node in your network