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.