PVE Network

Interfaces config file

cat /etc/network/interfaces
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source /etc/network/interfaces.d/*
 
auto lo
iface lo inet loopback
iface lo inet6 loopback
 
auto eno1
iface eno1 inet manual
#  post-up /sbin/ethtool -K eno1 tx off rx off
iface eno1 inet6 manual
 
auto vmbr0
iface vmbr0 inet static
  address 195.201.0.100/26
  gateway 195.201.0.1
  pointopoint 195.201.0.1
  hwaddress ether 30:9c:23:ac:59:10
  bridge_ports eno1
  bridge_stp off
  bridge_fd 0
  bridge_maxwait 0
  # post-up /sbin/ethtool -K vmbr0 tx off rx off
 
iface vmbr0 inet6 static
  address 2a01:4f8:231:001::2/64
  gateway fe80::1
  bridge_ports eno1
  bridge_stp off
  bridge_fd 0
  up ip -6 route del 2a01:4f8:231:001::/64 dev vmbr0
 
auto vmbr1
iface vmbr1 inet static
  address 192.168.1.1/24
  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 '192.168.1.0/24' -o vmbr0 -j MASQUERADE
	post-down iptables -t nat -D POSTROUTING -s '192.168.1.0/24' -o vmbr0 -j MASQUERADE
	post-up iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 10022 -j DNAT --to 192.168.1.100:22
	post-down iptables -t nat -D PREROUTING -i vmbr0 -p tcp --dport 10022 -j DNAT --to 192.168.1.100:22
 
auto vmbr1
iface vmbr1 inet6 static
  address  2a01:4f8:231:001::3/64
  #gateway fe80::1
  bridge_ports none
  bridge_stp off
  bridge_fd 0
  up ip -6 route add 2a01:4f8:231:001::/64 dev vmbr1
  post-down ip -6 route del 2a01:4f8:231:001::/64 dev vmbr1
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Configure steps

Sysctl configs

vim /etc/sysctl.conf
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net.core.default_qdisc=fq
net.ipv4.tcp_congestion_control=bbr 
net.ipv4.ip_forward=1
net.ipv6.conf.all.accept_dad = 1
net.ipv6.conf.all.accept_ra = 0
net.ipv6.conf.all.accept_redirects = 1
net.ipv6.conf.all.accept_source_route = 0
net.ipv6.conf.all.autoconf = 0
net.ipv6.conf.all.disable_ipv6 = 0
net.ipv6.conf.all.forwarding=1
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sysctl -p

Network settings

# Restart network serbvice
systemctl restart networking.service
systemctl status networking.service
 
# Get IPV6 route
ip -6 route
 
# Like that:
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::1 dev lo proto kernel metric 256 pref medium
2a01:4f8:231:001::/64 dev vmbr1 proto kernel metric 256 pref medium
2a01:4f8:231:001::/64 dev vmbr1 metric 1024 pref medium
fe80::/64 dev vmbr0 proto kernel metric 256 pref medium
fe80::/64 dev vmbr1 proto kernel metric 256 pref medium
default via fe80::1 dev vmbr0 proto kernel metric 1024 onlink pref medium
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VM/LXC network settings

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IPV4:
IP:
192.168.1.100
Gateway:
192.168.1.1
DNS:
8.8.8.8
---
IPV6:
IP:
2a01:4f8:231:001::4
Gateway:
2a01:4f8:231:001::3
DNS:
2001:4860:4860::8888
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