No internet

[ewenlau]

Hello,
I recently installed proxmox on a computer but the shell has no internet. VM can get internet but not the host shell. The proxmox version is the last. I can ping other computers within the local network.

ip a
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: enp14s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UP group default qlen 1000
link/ether f8:a9:63:89:a1:0f brd ff:ff:ff:ff:ff:ff
3: wlo1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 9c:ad:97:9e:9d:19 brd ff:ff:ff:ff:ff:ff
altname wlp7s0f0
4: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether f8:a9:63:89:a1:0f brd ff:ff:ff:ff:ff:ff
inet 192.168.1.56/24 scope global vmbr0
valid_lft forever preferred_lft forever
inet6 fe80::faa9:63ff:fe89:a10f/64 scope link
valid_lft forever preferred_lft forever

ip l

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp14s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UP mode DEFAULT group default qlen 1000
link/ether f8:a9:63:89:a1:0f brd ff:ff:ff:ff:ff:ff
3: wlo1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether 9c:ad:97:9e:9d:19 brd ff:ff:ff:ff:ff:ff
altname wlp7s0f0
4: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
link/ether f8:a9:63:89:a1:0f brd ff:ff:ff:ff:ff:ff

ip r

192.168.1.0/24 dev vmbr0 proto kernel scope link src 192.168.1.56

I'm pretty new to linux so if anyone can help it would be great. By the way I know my english is bad, i'm sorry but I'm french.

 

[pilgrimage]

in the same way, after I upgrade to 7.2.3, the host machine does not go to the internet, but the vms do. I think it's a bug. However, they still did not offer a solution.Unable to assign host ip Google.com or any website when you want to ping from the host. You must be getting the network is unreachable error too? this way?

 

[Dunuin]

What does your network configuration look like (cat /etc/network/interfaces, cat /etc/hosts, cat /etc/resolv.conf)? Did you make sure the gateway and DNS server is setup correctly?
When guests can go online but the host not, its usually either:
1.) wrong gateway
2.) wrong DNS server
3.) double use of IPs, IP already used by another host
4.) host got 2 IPs in the same subnet
5.) using a IP of a wrong subnet
6.) bad firewall rules

 

[pilgrimage]

When I manually give the internet ip to the ethernet of the main machine(host), I log out to the internet without any problems. But interestingly it can't get n internet ip from dhcp.Where can I make and control what settings to receive over DHCP on the host?

thankyou.

cat/etc/network/interface

auto lo
iface lo inet loopback

iface eno1 inet manual

auto enp1s0
iface enp1s0 inet manual

auto vmbr0
iface vmbr0 inet static
address 192.168.100.2/24
bridge-ports eno1
bridge-stp off
bridge-fd 0
#LOCAL

auto vmbr1
iface vmbr1 inet manual
bridge-ports enp1s0
bridge-stp off
bridge-fd 0
#INTERNET1


root@pve:~# cat /etc/resolv.conf
search mg.cv.tr
nameserver 10.255.0.31
nameserver 10.255.0.32
nameserver 8.8.8.8



root@pve:~# cat /etc/hosts
127.0.0.1 localhost.localdomain localhost
192.168.100.2 pve.tesla.local pve

# The following lines are desirable for IPv6 capable hosts

::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

 

[GermanRuss]

After yesterday's update, nothing works!

 

[ewenlau]

Hello, thank you for your replies.

You must be getting the network is unreachable error too? this way?

It says:
ping: google.com: Temporary failure in name resolution


What does your network configuration look like (cat /etc/network/interfaces, cat /etc/hosts, cat /etc/resolv.conf)? Did you make sure the gateway and DNS server is setup correctly?

cat /etc/network/interfaces

auto lo
iface lo inet loopback

iface enp14s0 inet manual

auto vmbr0
iface vmbr0 inet static
address 192.168.1.56/24
gateway 192.168.1.255
bridge-ports enp14s0
bridge-stp off
bridge-fd 0

iface wlo1 inet manual

cat /etc/hosts

127.0.0.1 localhost.localdomain localhost
192.168.1.56 ####### #######

# The following lines are desirable for IPv6 capable hosts

::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

cat /etc/resolv.conf

search local
nameserver 4.4.4.4


Should I install an older version of proxmox? Or do any configuration changes?

 

[xevilstar]

pve version 7.2-4
all vm can reach/are reachable.
wan is on vmbr0 (physical interface ens10f0 )
default gw is configured on vmbr0
internal lan is on vmbr1 which is purely virtual.
lan gw is a vm firewall.
If I activate the datacenter firewall the proxmox cannot ping nor resolve anything outside.
can anyone advise me ?

 

[xevilstar]

solved thanks

 

[GermanRuss]

Use "ip link" and see which interfaces are used. Most likely they have changed.

 

[icodetea]

solved thanks

how?

 

[GermanRuss]

how?

There is a change of interface.