Two clues with IPv6

RouterOS General
1

Dear all,

I just configured a RB433 with 3.14 as BGP peer for IPv6. It’s only getting few routes (aprox. 30) and seems to be working.

I have found two problems:

  1. RB433 getting high load when the IPv6 traffic going over RB. With 2-3Mbps getting 99%. Normal work without IPv6 getting max. 5%
    Confirmed on 3.13 and 3.14.

  2. I’ve tried to setup mangle and QoS. Mangle seems to be correctly marking packages. But queues still are 0, with IPv4 working correctly.
    Also why the mangle is limited to /64 network mark, It should support from /3 to /128

Checked on non-tunneled IPv6 enviroment.

I open for tests, is somehow I can help somebody who can resolve those issues please let me know.

Gallery with screenshot of configuration:
http://gallery.me.com/drixter#100023&bgcolor=black&view=grid

2
  1. RB433 getting high load when the IPv6 traffic going over RB. With 2-3Mbps getting 99%. Normal work without IPv6 getting max. 5%
    Confirmed on 3.13 and 3.14.

Confirmed on 3.15.

Can someone check this on your own network, pure IPv6 traffic generates 100% CPU load, can someone confirm it or not?
I think that is somekind bug with software.

Thanks in Advance

3

I’m running version ROS 3.17 on RB450
When I’m transfer a file over IPv4 through NAT I’ve got a throughput on 11 MB/s and a CPU consumption on the RB450 rise to 69-73% no problem with that. but if i go over to IPv6 between the same hosts I’ve got a throughput of 3,4 MB/s and the CPU on the RB450 goes up to 100% over the whole session.

The IPv6 connection did not went through a Tunnel just routing in the Mikrotik. So there seems to be some sort of problem with IPv6 and ROS

I doesn’t have any mangles or queues in the configuration

4

Confirmed on 3.17@RB433, high load on pure IPv6 traffic.

Can someone fix it? :slight_smile:

5

did you wrote to support@mikrotik.com?

6

I think that they reading this forum, if not I’ll sent it today evening.

7

Mail sent.

8

Hi,

Or rb333 with 3.17 I haven’t noticed it. Everything looks OK except OSPFv3 - pretty unstable (RIPng works great)

regards

9

On WLAN traffic too?

10

Yes, on wireless too. But on WLAN I don’t have as much IPv6 traffic. Anyway, I don’t see any influence on router’s load.

11

we need your supout.rif file to see the cause of the problem, forum reading is not enough. also - forum is not a support system, we don’t read every post.

12

Please try to make about 25Mbit on IPv4 and then on IPv6 and look CPU Load.

13

It’s already investigating by Mikrotik support (Ticket#2008122966000358)

14

Fixed in 3.19 :wink:

EOT