Packet loss in internal network

denyka09.1992

Member
Dec 13, 2016
2
0
6
Lviv, Ukraine
Hello, guys. I have a problem with internal network on proxmox 6.1
I have vmbr0 for local network 10.1.0.0/24 and vmbr1 for global network.
When I'm trying to ping local address, like 10.1.0.101 I have a huge packet loss
Here is my network config on proxmox
Code:
source /etc/network/interfaces.d/*

auto lo
  iface lo inet loopback

auto enp0s31f6
  iface enp0s31f6 inet static
    address <redacted>
    netmask <redacted>
    gateway <redacted>
    up route add -net <redacted> netmask <redacted> gw <redacted> dev enp0s31f6

# - internal bridge network
auto vmbr0
  iface vmbr0 inet static
    address  10.1.0.1
    netmask  255.255.255.0
    bridge_ports none
    bridge_stp off
    bridge_fd 0

    post-up   echo 1 > /proc/sys/net/ipv4/ip_forward
    post-up   iptables -t nat -A POSTROUTING -s '10.1.0.0/24' -o enp0s31f6 -j MASQUERADE
    post-down iptables -t nat -D POSTROUTING -s '10.1.0.0/24' -o enp0s31f6 -j MASQUERADE

# - external bridge network
auto vmbr1
  iface vmbr1 inet static
    address  <redacted>
    netmask  <redacted>
    bridge-ports none
    bridge-stp off
    bridge-fd 0
    up route add <redacted> dev vmbr1

on the client side I'm using centos8 with the next configuration
Code:
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
DEFROUTE=no
IPV4_FAILURE_FATAL=no
IPV6INIT=no
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=eth0
DEVICE=eth0
ONBOOT=yes
IPADDR=10.3.0.100
PREFIX=24
GATEWAY=10.3.0.1
DNS1=1.1.1.1
DNS2=8.8.8.8
DNS3=8.8.4.4
DOMAIN=<redacted>

Where am I wrong? Please help me with this issue.
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!