Bridge utils config für Virtualbox Debian

Installation

• apt install bridge-utils iptables dnsmasq

Muss in die /etc/network/interfaces

auto dummy0
iface dummy0 inet manual
pre-up modprobe dummy numdummies=1

auto vmbr0
iface vmbr0 inet static
    address 192.168.16.254
    netmask 255.255.255.0
    bridge_ports dummy0
    bridge_fd 5
    bridge_stp no
    post-up iptables -t nat -j POSTROUTING -s 192.168.16.0/24 -j MASQUERADE 
    post-up echo 1 > /proc/sys/net/ipv4/ip_forward

Danach

• ifup -v vmbr0

DNS und DHCP für das Netz

Konfiguration

• vi /etc/dnsmasq.conf

interface=vmbr0
bind-interfaces
dhcp-range=192.168.16.100,192.168.16.110,255.255.255.0,12h
dhcp-option=3,192.168.16.254
dhcp-option=6,192.168.16.254
server=8.8.8.8
log-queries 
log-dhcp

Starten und Enablen

• systemctl restart dnsmasq