[SOLVED] No network access after fresh install

[rpastoruma]

No one of solved posts related with this question has helped me.

I have installed Proxmox with correct network ip, gateway for my network but no network access after install.

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: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UP group default qlen 1000
link/ether 10:60:4b:5c:c1:d3 brd ff:ff:ff:ff:ff:ff
3: wlp3s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether a4:17:31:22:bf:b4 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 10:60:4b:5c:c1:d3 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.107/24 scope global vmbr0
valid_lft forever preferred_lft forever
inet6 fe80::1260:4bff:fe5c:c1d3/64 scope link
valid_lft forever preferred_lft forever

ip r
default via 192.168.0.1 dev vmbr0 proto kernel onlink
192.168.0.0/24 dev vmbr0 proto kernel scope link src 192.168.0.107


cat /etc/network/interfaces
# network interface settings; autogenerated
# Please do NOT modify this file directly, unless you know what
# you're doing.
#
# If you want to manage parts of the network configuration manually,
# please utilize the 'source' or 'source-directory' directives to do
# so.
# PVE will preserve these directives, but will NOT read its network
# configuration from sourced files, so do not attempt to move any of
# the PVE managed interfaces into external files!

auto lo
iface lo inet loopback

iface enp4s0 inet manual

auto vmbr0
iface vmbr0 inet static
address 192.168.0.107/24
gateway 192.168.0.1
bridge-ports enp4s0
bridge-stp off
bridge-fd 0


(I have removed wireless interface just in case)


I have access to https://192.168.0.7:8006 from other computers in the same network in order to manage virtual environment but no internet access from proxmox host.

I have tried twice a fresh install with diferent IP.

 

[Moayad]

Hello,

What give you when you try to `ping 8.8.8.8` and/or `ping google.com`?

Maybe the issue related to the `/etc/resolv.conf` in your Proxmox VE host, which is not correct?

 

[rpastoruma]

Hi Moayad. Thak you for your reply.

ping 8.8.8.8 -c 4
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.

--- 8.8.8.8 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3053ms

ping google.com -c 4
ping: google.com: Temporary failure in name resolution

cat /etc/resolv.conf
nameserver 1.1.1.1


I have tried with 8.8.8.8 nameserver too but same problem.

 

[Moayad]

You could also test to set the DNS server IP as your router IP in the /etc/resolv.conf

nameserver 192.168.0.1

 

[rpastoruma]

I have tried and then systemctl restart networking but same problem.

 

[pille99]

whats the gateway 0.1 ? your firewall ? Router ?

 

[rpastoruma]

Router and gateway are 192.168.0.1

 

[rpastoruma]

You could also test to set the DNS server IP as your router IP in the /etc/resolv.conf

nameserver 192.168.0.1

I have test this and same problem.

 

[rpastoruma]

SOLVED: Router DHCP problem at proxmox install makes a taken IP to be assigned.