Ping loss on LXC

[Fantomas51]

Hi,

Since we've migrated from a datacenter to another, we have some issue with 2-3 of our VPS.
When we ping them, we lost ping radomly. All of our other VPS are ok, no ping loss.

We don't have any idea about the way for searching a solutions, we've changed the IP, Migrate from one node to another in the same cluster, to another node outside of the cluster, we have changed the IP address...

If you have any idea,

Thanks in advance

 

[pabernethy]

Without more information barely anything can be said. A good start would be to post the container config

# pct config <ID>

and the host's network config

cat /etc/network/interfaces

 

[Fantomas51]

Hello,

Thanks for your reply.

root@PVE-CLU-02:~# pct config 101
arch: amd64
cores: 4
hostname: proxpex
memory: 4096
net0: name=eth0,bridge=vmbr0,gw=185.xxx.xx.253,hwaddr=EA:A2:6F:AA:3B3,ip=185.xxx.xx.143/32,rate=200,type=veth
ostype: ubuntu
rootfs: HDD:101/vm-101-disk-1.raw,size=70G
swap: 4096

and :

root@PVE-CLU-02:~# 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 part of the network configuration manually,
# please utilize the 'source' or 'source-directory' directives to do
# so.
# PVE will preserve these directives, but will NOT 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 eth0 inet manual

auto eth1
iface eth1 inet static
address 10.23.5.2
netmask 255.255.255.0

auto vmbr0
iface vmbr0 inet static
address 185.xx.xx.2
netmask 255.255.255.0
gateway 185.xx.xx.253
bridge_ports eth0
bridge_stp off
bridge_fd 0

Recently i'm delivered new VPS and having same problem .. Is very strange. Before i'm never have this problem.

Thanks in advance

 

[pabernethy]

And you can't ping the container from the host? Or vice-versa? Or you can't reach the container from another host? Or do you have intermittent availability? Do you ping by name or IP?
Debugging networks is hard enough without direct access, so we need as much information as possible. What is the configuration of all parties involved, what is the topology, what are you trying to do, what works, what doesn't?