Enable IPv6 Addressing on Versa Director

For supported software information, click here.

You can enable IPv6 addressing on Versa Director for north-bound interfaces to create a dual-stacking capability.

To enable IPv6 addressing, you make changes to the following files:

• . /etc/network/interfaces—Add IPv6 interface details on the eth0 interface.
• . /etc/sysctl.conf—Enable IPv6 traffic on the host.
• /var/versa/vnms/share/config/manifest/traefik.yml—Enable IPv6 traffic on the traefik service.

Versa Networks provides a script to make these changes: /opt/versa/vnms/scripts/vnms-startup.sh. To execute the script, follow the example below. 

1. Run the script.

[Administrator@SDWAN-VOAE1: ~] $ sudo /opt/versa/vnms/scripts/vnms-startup.sh
------------------------------------------------------------
VERSA DIRECTOR SETUP
------------------------------------------------------------
Do you want to enter setup? (y/n)? y
[sudo] password for Administrator:
------------------------------------------------------------
Executing /opt/versa/vnms/scripts/vnms-startup.sh ...
------------------------------------------------------------
Do you want to setup hostname for system? (y/n)? n     # Type y if you need to configure hostname of VD with some name related to IPv6.
Do you want to setup network interface configuration? (y/n)? y
------------------------------------------------------------
Setup Network Interfaces
------------------------------------------------------------
Configure IPv4 interface? (y/n)? n        # Since IPv4 already exists, you can skip this step. You can the reconfigure IPv4 interface if needed.
Configure IPv6 interface? (y/n)? y
Enter interface name [eg. eth0]: eth0     # This is the north-bound interface of Versa Director.
Enter IPV6 Address: 2400:c980:0:2::171
Enter IPv6 Netmask Address: 64
Configure IPv6 Gateway Address? (y/n)? y
Enter IPV6 Gateway Address: 2400:c980:0:2::1
------------------------------------------------------------
Adding default route - route add default gw 2400:c980:0:2::1
Change any existing MTU MTU will be changed to 1280 as minumum MTU for IPv6 is 1280
Added interface eth0
Configure another IPv6 interface? (y/n)? n
Configure North-Bound interface (If not configured, default 0.0.0.0 will be accepted) (y/n)? n
Binding north-bound services to 0.0.0.0
------------------------------------------------------------
Select South-Bound Interface(s)
------------------------------------------------------------
Enter interface name [eg. eth0]: eth1
Configure another South-Bound interface? (y/n)? n
Restarting network service ...
Versa Director services not running:
=> Skipping HA port/communication hardening
Edit list of hosts allowed to access Versa GUI? (y/n)? n
------------------------------------------------------------
Completed Setup . Please reboot for interface changes
------------------------------------------------------------
Press ENTER to continue

2. Reboot the machine for the IPv6 interface changes to take effect.
    

   [Administrator@SDWAN-VOAE1: ~] $ sudo reboot -f

3. Check the eth0 interface for IPv6 adresses.

[Administrator@SDWAN-VOAE1: ~] $ ifconfig eth0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1280
inet 10.192.99.10 netmask 255.255.0.0 broadcast 10.192.255.255
inet6 2400:c980:0:2::171 prefixlen 64 scopeid 0x0<global>
inet6 fe80::5054:ff:fe57:e4e1 prefixlen 64 scopeid 0x20<link>
ether 52:54:00:57:e4:e1 txqueuelen 1000 (Ethernet)
RX packets 14695 bytes 1127869 (1.1 MB)
RX errors 0 dropped 30 overruns 0 frame 0
TX packets 123 bytes 16649 (16.6 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

4. Issue the cat command to check the contents of the network interface file, for example:

 [Administrator@DirectorIPV6: ~] $ sudo cat /etc/network/interfaces
[sudo] password for Administrator:
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:

# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
auto eth0
iface eth0 inet static
address 10.192.99.10
netmask 255.255.0.0
broadcast 10.192.255.255
gateway 10.192.0.1
mtu 1280
network 10.192.0.0
post-up route add default gw 10.192.0.1

auto eth1
iface eth1 inet static
address 192.168.99.10
netmask 255.255.255.0
broadcast 192.168.99.255
mtu 1280

auto eth0
iface eth0 inet6 static
address 2400:c980:0:2::171
netmask 64
gateway 2400:c980:0:2::1
mtu 1280
post-up route add default gw 2400:c980:0:2::1

You can now access the Versa Director UI using IPv6 addressing, as shown in the following screen shot. 

The new IPv6 properties are shown below.