root@proxmox-single ~ # ifconfig enp0s31f6: flags=4163 mtu 1500 inet 116.202.228.230 netmask 255.255.255.192 broadcast 0.0.0.0 inet6 2a01:4f8:241:485b::2 prefixlen 64 scopeid 0x0 inet6 fe80::921b:eff:fe8d:99ef prefixlen 64 scopeid 0x20 ether 90:1b:0e:8d:99:ef txqueuelen 1000 (Ethernet) RX packets 1177 bytes 218733 (213.6 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1790 bytes 1872307 (1.7 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 16 memory 0xf7000000-f7020000 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 102 bytes 21805 (21.2 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 102 bytes 21805 (21.2 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@proxmox-single ~ # ./network_config.sh MAIN_SERVER_IP: 116.202.228.216 MAIN_SERVER_GATEWAY_ADRESS: 116.202.228.193 NETMASK: 255.255.255.192 BROADCASTIP: 116.202.228.255 ADDITIONAL_IP_ADRESS: ^C root@proxmox-single ~ # ./network_config.sh MAIN_SERVER_IP: 116.202.228.230 MAIN_SERVER_GATEWAY_ADRESS: 116.202.228.193 NETMASK: 255.255.255.192 BROADCASTIP: 116.202.228.255 ADDITIONAL_IP_ADRESS: 116.202.228.216 NETWORK_INTERFACE: enp0s31f6 ##### Output #### auto lo iface lo inet loopback iface lo inet6 loopback iface enp0s31f6 inet manual up ip route add -net up ip route add -net 116.202.228.193 netmask 255.255.255.192 gw 116.202.228.193 vmbr0 up sysctl -w net.ipv4.ip_forward=1 up sysctl -w net.ipv4.conf.enp0s31f6.send_redirects=0 up sysctl -w net.ipv6.conf.all.forwarding=1 up ip route add 192.168.0.0/16 via 116.202.228.216 dev vmbr0 up ip route add 172.16.0.0/12 via 116.202.228.216 dev vmbr0 up ip route add 10.0.0.0/8 via 116.202.228.216 dev vmbr0 iface enp0s31f6 inet6 static address 2a01:4f8:110:5143::2 netmask 64 gateway fe80::1 auto vmbr0 iface vmbr0 inet static address 116.202.228.230 netmask 255.255.255.192 gateway 116.202.228.193 broadcast 116.202.228.255 bridge-ports enp0s31f6 bridge-stp off bridge-fd 0 pointopoint 116.202.228.193 #WAN # Virtual switch for DMZ # (connect your firewall/router KVM instance and private DMZ hosts here) auto vmbr1 iface vmbr1 inet manual bridge_ports none bridge_stp off bridge_fd 0 #LAN0 Config correct? [yes][no]: yes The network can be restarted with the following command: /etc/init.d/networking restart root@proxmox-single ~ # /etc/init.d/networking restart -bash: /etc/init.d/networking: Permission denied root@proxmox-single ~ # sudo /etc/init.d/networking restart sudo: /etc/init.d/networking: command not found root@proxmox-single ~ # ifconfig enp0s31f6: flags=4163 mtu 1500 inet 116.202.228.230 netmask 255.255.255.192 broadcast 0.0.0.0 inet6 2a01:4f8:241:485b::2 prefixlen 64 scopeid 0x0 inet6 fe80::921b:eff:fe8d:99ef prefixlen 64 scopeid 0x20 ether 90:1b:0e:8d:99:ef txqueuelen 1000 (Ethernet) RX packets 2963 bytes 678603 (662.6 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3404 bytes 2360971 (2.2 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 16 memory 0xf7000000-f7020000 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 102 bytes 21805 (21.2 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 102 bytes 21805 (21.2 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@proxmox-single ~ # reboot root@proxmox-single ~ # Connection to 116.202.228.230 closed by remote host. Connection to 116.202.228.230 closed.  13.06.24  11:42:40  aks-excelsior-development/default ⎈ Linux proxmox-single 6.8.4-3-pve #1 SMP PREEMPT_DYNAMIC PMX 6.8.4-3 (2024-05-02T11:55Z) x86_64 The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. Last login: Thu Jun 13 11:34:38 2024 from 93.234.183.85 root@proxmox-single ~ # ifconfig enp0s31f6: flags=4163 mtu 1500 ether 90:1b:0e:8d:99:ef txqueuelen 1000 (Ethernet) RX packets 394 bytes 84943 (82.9 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 270 bytes 91513 (89.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 16 memory 0xf7000000-f7020000 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 vmbr0: flags=4163 mtu 1500 inet 116.202.228.230 netmask 255.255.255.255 broadcast 116.202.228.255 inet6 fe80::921b:eff:fe8d:99ef prefixlen 64 scopeid 0x20 ether 90:1b:0e:8d:99:ef txqueuelen 1000 (Ethernet) RX packets 281 bytes 72227 (70.5 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 265 bytes 89977 (87.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 vmbr1: flags=4163 mtu 1500 inet6 fe80::a432:9cff:fe67:ad3c prefixlen 64 scopeid 0x20 ether a6:32:9c:67:ad:3c txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 4 bytes 480 (480.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ############ network_config_updated.sh ############ root@proxmox-single ~ # ./network_config_updated.sh MAIN_SERVER_IP [192.168.0.1]: 116.202.228.230 MAIN_SERVER_GATEWAY_ADDRESS [192.168.0.254]: 116.202.228.193 NETMASK [255.255.255.0]: 255.255.255.192 BROADCASTIP [192.168.0.255]: 116.202.228.255 ADDITIONAL_IP_ADDRESSES (comma-separated) []: 116.202.228.216 MAC_ADDRESSES for additional IPs (comma-separated) []: 00:50:56:00:4B:CF NETWORK_INTERFACE [eth0]: enp0s31f6 --------------------------------------------------------------------- You have entered the following configuration: MAIN_SERVER_IP: 116.202.228.230 MAIN_SERVER_GATEWAY_ADDRESS: 116.202.228.193 NETMASK: 255.255.255.192 BROADCASTIP: 116.202.228.255 ADDITIONAL_IP_ADDRESSES: 116.202.228.216 MAC_ADDRESSES: 00:50:56:00:4B:CF NETWORK_INTERFACE: enp0s31f6 --------------------------------------------------------------------- Is this correct? [yes/no]: y --------------------------------------------------------------------- Current network configuration (/etc/network/interfaces): ### Hetzner Online GmbH installimage source /etc/network/interfaces.d/* auto lo iface lo inet loopback iface lo inet6 loopback iface enp0s31f6 inet manual up ip route add -net up ip route add -net 116.202.228.193 netmask 255.255.255.192 gw 116.202.228.193 vmbr0 up sysctl -w net.ipv4.ip_forward=1 up sysctl -w net.ipv4.conf.enp0s31f6.send_redirects=0 up sysctl -w net.ipv6.conf.all.forwarding=1 up ip route add 192.168.0.0/16 via 116.202.228.216 dev vmbr0 up ip route add 172.16.0.0/12 via 116.202.228.216 dev vmbr0 up ip route add 10.0.0.0/8 via 116.202.228.216 dev vmbr0 iface enp0s31f6 inet6 static address 2a01:4f8:110:5143::2 netmask 64 gateway fe80::1 auto vmbr0 iface vmbr0 inet static address 116.202.228.230 netmask 255.255.255.192 gateway 116.202.228.193 broadcast 116.202.228.255 bridge-ports enp0s31f6 bridge-stp off bridge-fd 0 pointopoint 116.202.228.193 #WAN # Virtual switch for DMZ # (connect your firewall/router KVM instance and private DMZ hosts here) auto vmbr1 iface vmbr1 inet manual bridge_ports none bridge_stp off bridge_fd 0 #LAN0 --------------------------------------------------------------------- New network configuration: ### Hetzner Online GmbH installimage source /etc/network/interfaces.d/* auto lo iface lo inet loopback iface lo inet6 loopback # Main network interface configuration iface enp0s31f6 inet manual up ip route add -net 116.202.228.193 netmask 255.255.255.192 gw 116.202.228.193 vmbr0 up sysctl -w net.ipv4.ip_forward=1 up sysctl -w net.ipv4.conf.enp0s31f6.send_redirects=0 up sysctl -w net.ipv6.conf.all.forwarding=1 up ip route add 116.202.228.216 dev enp0s31f6 up ip route add 192.168.0.0/16 via 116.202.228.230 dev vmbr0 up ip route add 172.16.0.0/12 via 116.202.228.230 dev vmbr0 up ip route add 10.0.0.0/8 via 116.202.228.230 dev vmbr0 auto vmbr0 iface vmbr0 inet static address 116.202.228.230 netmask 255.255.255.192 gateway 116.202.228.193 broadcast 116.202.228.255 bridge-ports enp0s31f6 bridge-stp off bridge-fd 0 pointopoint 116.202.228.193 #Main IP configuration auto vmbr1 iface vmbr1 inet static address 116.202.228.216 netmask 255.255.255.192 bridge_ports none bridge_stp off bridge_fd 0 hwaddress ether 00:50:56:00:4B:CF #WAN 1 auto vmbr100 iface vmbr100 inet manual bridge_ports none bridge_stp off bridge_fd 0 #LAN 100