Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
technical:openvpn-bridges-prep-os [2023/10/20 08:03] admin [Configure the Interfaces] |
technical:openvpn-bridges-prep-os [2023/10/23 14:47] (current) admin [Configure the Interfaces] |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| ====== Prepare the hardware and OS ====== | ====== Prepare the hardware and OS ====== | ||
| ===== Install VLAN Module ===== | ===== Install VLAN Module ===== | ||
| - | * In order for us to run VLANs on the server we need to install the VLAN module | + | * We need to install the VLAN module |
| <code bash> | <code bash> | ||
| #Install the VLAN package | #Install the VLAN package | ||
| Line 15: | Line 15: | ||
| ===== Install Bridge Utilities ===== | ===== Install Bridge Utilities ===== | ||
| - | * In order for us be be able to use the bridging capabilities on the server, we need to install the bridge utilities. | + | * We need to install the bridge utilities |
| <code bash> | <code bash> | ||
| #Install the bridge-utils package | #Install the bridge-utils package | ||
| Line 29: | Line 29: | ||
| </ | </ | ||
| - | <code bash> | + | <file bash rc.local> |
| - | # This script is executed at the end of each multiuser runlevel. | + | #!/bin/bash |
| - | # Make sure that the script will "exit 0" on success or any other | + | |
| - | # value on error. | + | |
| - | # | + | |
| - | # In order to enable or disable this script just change the execution | + | |
| - | # bits. | + | |
| - | # | + | |
| - | # By default this script does nothing. | + | |
| #Set up the dummy interface | #Set up the dummy interface | ||
| Line 43: | Line 36: | ||
| /sbin/ip link add dummy0 type dummy | /sbin/ip link add dummy0 type dummy | ||
| /sbin/ip link set name eth1 dev dummy0 | /sbin/ip link set name eth1 dev dummy0 | ||
| - | /sbin/ifconfig | + | /sbin/ip link set dev eth1 address |
| /sbin/ip link set eth1 up promisc on | /sbin/ip link set eth1 up promisc on | ||
| Line 69: | Line 62: | ||
| exit 0 | exit 0 | ||
| + | </ | ||
| + | * If your server has two or more physical interfaces we do on need to first define a dummy interface. | ||
| + | <file bash rc.local> | ||
| + | #!/bin/bash | ||
| + | |||
| + | #Now add the VLAN | ||
| + | /sbin/ip link add link eth1 name eth1.101 type vlan id 101 | ||
| + | /sbin/ip link set eth1.101 up promisc on | ||
| + | /sbin/brctl addbr br0.101 | ||
| + | /sbin/brctl addif br0.101 eth1.101 | ||
| + | /sbin/ip addr add 10.101.0.1/ | ||
| + | /sbin/ip link set dev br0.101 up | ||
| + | |||
| + | /sbin/ip link add link eth1 name eth1.102 type vlan id 102 | ||
| + | /sbin/ip link set eth1.102 up promisc on | ||
| + | /sbin/brctl addbr br0.102 | ||
| + | /sbin/brctl addif br0.102 eth1.102 | ||
| + | /sbin/ip addr add 10.102.0.1/ | ||
| + | /sbin/ip link set dev br0.102 up | ||
| + | |||
| + | /sbin/ip link add link eth1 name eth1.103 type vlan id 103 | ||
| + | /sbin/ip link set eth1.103 up promisc on | ||
| + | /sbin/brctl addbr br0.103 | ||
| + | /sbin/brctl addif br0.103 eth1.103 | ||
| + | /sbin/ip addr add 10.103.0.1/ | ||
| + | /sbin/ip link set dev br0.103 up | ||
| + | |||
| + | exit 0 | ||
| + | </ | ||
| + | <WRAP center round info 90%> | ||
| + | We don't use a Netplan file since it does not currently support things like setting a card in promiscuous mode. | ||
| + | </ | ||
| + | |||
| + | |||
| + | ===== Add a Systemd Service for rc.local ===== | ||
| + | * Ubuntu changed the startup system in the more recent releases to Systemd. | ||
| + | * In order for the rc.local file to be run during startup under Systemd, we need a couple of extra steps | ||
| + | * Create the file **/ | ||
| + | <code bash> | ||
| + | # / | ||
| + | [Unit] | ||
| + | | ||
| + | | ||
| + | |||
| + | [Service] | ||
| + | | ||
| + | | ||
| + | | ||
| + | | ||
| + | | ||
| + | | ||
| + | |||
| + | [Install] | ||
| + | | ||
| </ | </ | ||
| + | * Then | ||
| + | <code bash> | ||
| + | sudo touch / | ||
| + | sudo chmod +x / | ||
| + | sudo systemctl enable rc-local | ||
| + | </ | ||
| + | * Check with | ||
| + | <code bash> | ||
| + | sudo systemctl start rc-local.service | ||
| + | sudo systemctl status rc-local.service | ||
| + | </ | ||
| + | ===== Confirm it is correct ===== | ||
| + | * Reboot the server and confirm that it came up with these bridges configured. | ||
| + | <code bash> | ||
| + | #Issue the **ip a** command to confirm the br0.101, br0.102 and br0.103 are up and has the correct IP Address. | ||
| + | #Also use the brctl command to show you the bridges present | ||
| + | system@rd: | ||
| + | bridge name bridge id STP enabled interfaces | ||
| + | br0.101 8000.000c294aafdf no eth0.101 | ||
| + | br0.102 8000.000c294aafdf no eth0.102 | ||
| + | br0.103 8000.000c294aafdf no eth0.103 | ||
| + | </ | ||
| + | |||
| + | |||
| + | |||