VF50 linux how to disable IPv6

Technical Support
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1

Hello,
I have a message error below:
IPv6: eth0: IPv6 duplicate address xxxxxxxxxxxxxxxxx detected!

Perhaps I have several VF50 in the same network. Need I disable the IPv6? And how can I disable the IPv6?

linux version: Colibri-VF_Console-Image 2.8b6.184 20190401

2

Hello @yunfeng ,
You can refer to out documentation for BSP 2.8

Since we use conmanctl you can try with

config name_of_the_connection --ipv6 off

Best regards
Josep

3

Hello Josep,
Thank you. Can you give me some more details?
I don’t know where is " config name_of_the_connection --ipv6 off" .

I have below information. Which line that I need to change to “off”

root@GATEWAY:/# connmanctl services
*AO Wired ethernet_00142d000000_cable
root@GATEWAY:/# connmanctl services ethernet_00142d000000_cable
/net/connman/service/ethernet_00142d000000_cable
Type = ethernet
Security = [ ]
State = online
Favorite = True
Immutable = False
AutoConnect = True
Name = Wired
Ethernet = [ Method=auto, Interface=eth0, Address=00:14:2D:00:00:00, MTU=1500 ]
IPv4 = [ Method=dhcp, Address=192.168.1.205, Netmask=255.255.255.0, Gateway=192.168.1.254 ]
IPv4.Configuration = [ Method=dhcp ]
IPv6 = [ ]
IPv6.Configuration = [ Method=auto, Privacy=disabled ]
Nameservers = [ 192.168.1.254 ]
Nameservers.Configuration = [ ]
Timeservers = [ 192.168.1.254 ]
Timeservers.Configuration = [ ]
Domains = [ ]
Domains.Configuration = [ ]
Proxy = [ Method=direct ]
Proxy.Configuration = [ ]
Provider = [ ]

4

Hello @yunfeng
Here you have an example (it is for a Rpi but the concept is the same) :

Best regards,
Josep

5

Ok. Thank you. It seems work. I will do some more tests.

Below what I do. (I have only a little problem is that I can’t see the text I type in the connmanctl mode. but it works)

osmc@rpi2:~$ connmanctl
connmanctl> services
*Ac Wired                ethernet_xxxxxxxx_cable
connmanctl> config ethernet_xxxxxxxx_cable --ipv6 off
connmanctl> quit

And I check below ( => IPv6.Configuration = [ Method=off ])

connmanctl services ethernet_00142d000000_cable
/net/connman/service/ethernet_00142d000000_cable
  Type = ethernet
  Security = [  ]
  State = ready
  Favorite = True
  Immutable = False
  AutoConnect = True
  Name = Wired
  Ethernet = [ Method=auto, Interface=eth0, Address=00:14:2D:00:00:00, MTU=1500 ]
  IPv4 = [ Method=dhcp, Address=192.168.1.104, Netmask=255.255.255.0, Gateway=192.168.1.254 ]
  IPv4.Configuration = [ Method=dhcp ]
  IPv6 = [  ]
  IPv6.Configuration = [ Method=off ]
  Nameservers = [ 192.168.1.254 ]
  Nameservers.Configuration = [  ]
  Timeservers = [ 192.168.1.254 ]
  Timeservers.Configuration = [  ]
  Domains = [  ]
  Domains.Configuration = [  ]
  Proxy = [ Method=direct ]
  Proxy.Configuration = [  ]
  Provider = [  ]
6

Hello @yunfeng
Thanks for the feedback. If you can confirm it works, please mark the most suitable answer as solution, please.

Best regards,
Josep