No dhcp received on my container

[anna1231]

No dhcp received on my container

Hello,

I am running

dhclient -v eth0

on my Debian 12 container.

See the error message:

No DHCPOFFERS received.
No working leases in persistent database - sleeping

My network interface on proxmox :



container :

auto lo
iface lo inet loopback


auto eth0
iface eth0 inet dhcp


up ip link set promisc on dev eth0

proxmox :

auto lo
iface lo inet loopback


iface enp0s3 inet manual


iface enp0s8 inet manual


iface enp0s9 inet manual


auto vmbr0
iface vmbr0 inet manual
        bridge-ports enp0s3
        bridge-stp off
        bridge-fd 0


auto vmbr1
iface vmbr1 inet static
        address 192.168.45.250/24
        bridge-ports enp0s8
        bridge-stp off
        bridge-fd 0


auto vmbr2
iface vmbr2 inet manual
        bridge-ports enp0s9
        bridge-stp off
        bridge-fd 0

Have you seen this before?

Thanks for help

 

[Chris]

Hi,
according to the screenshot you showed, the firewall is enabled. Make sure the firewall allows the DHCP traffic by setting the rules accordingly.

 

[anna1231]

Thank you, the firewall is not actually configured. So I think that is not the problem here. Thanks for asking

 

[RajatSharma]

Which Distro are you running ? Have you check the rules and permissions for the inbuilt Firewall of the OS like UFW?

 

[anna1231]

Hi, thanks for the answer.
So I look, ufw is not installed on my Debian 12.

I finally get an ip on my linux machine, but now I can't ping 1.1.1.1 to reach the internet. I can't even ping my real machine on the same network.

I don't know why. If anyone has an idea?