Can't ping via IPv6 at "Deutsche Glasfaser"

sirsalomon

Hi there,

sorry about my English, it's not my mother language.

I can't ping via IPv6, here are some Screenshot.

IPv6-Adress from ISP at VLAN-Port:


IPv6-Adress at GE4-Port:


Here the result from Network Tool from the ATP500:


And another result, ping via IPv6-Address and interfaces:


Here the Config-Part for the interface VLAN1 (from ISP):

When I try to use SLAAC, I don't become a IPv6 from my ISP.

Here my DHCP-Setting for the local network:


With this setting, my clients become a IPv6-Adress from the ATP500.

Can anyone help me, that I can use IPv6 at the ATP500?

Zyxel_Stanley

Hi @sirsalomon

After added gateway IP which received from RA, and there is no problem to access to IPv6 Internet.

Currently we are cross checking why interface did not save it automatically.

Zyxel_Stanley

Hi @sirsalomon

After we checked this situation, it has to disable/enable interface after configured IPv6 IP address.

It can prevent IP address cache exist in interface.

After did it, interface is able gateway address automatically.

Zyxel_Stanley

Hi @sirsalomon

According to this screen shot, it looks VLAN interface did not get IPv6 gateway from ISP.

What IP address ISP provided to you?

Please use CLI command to show IPv6 routing status:

Router# debug system ipv6 route show

And capture the packets on VLAN interface for few seconds.

It should have IP detail info in “Router Advertisement” (RA) packets.

sirsalomon

Thanks for your answer.

Here is the complete address from VLAN1:


And here ist the Debug-Report:

Zyxel_Stanley

Hi @sirsalomon  

It looks your VLAN interface did not receive default gateway from ISP device.

Can you capture the packets on VLAN interface for few mins.

It should have “Router Advertisement” packets sent from your gateway, and ATP will learn it.

Zyxel_Stanley

Hi @sirsalomon  

Did you enabled “SLAAC” in ge4 interface?

If yes, please disable it and check if IPv6 connection is worked or not.

sirsalomon

Hi Stanley,

SLAAC is and must be disable

And, I become a lot of RA, but I think, you mean the blue line:

Zyxel_Stanley

Hi @sirsalomon

It looks RA(router advertisement) packets has sent to interface but not learned by ATP.

I will send you private message for check this issue more details.

sirsalomon

Ok, but the access can guarantee only via TeamViewer...

I'll wait for a PM from you :)

Zyxel_Stanley

Hi @sirsalomon

After added gateway IP which received from RA, and there is no problem to access to IPv6 Internet.

Currently we are cross checking why interface did not save it automatically.

sirsalomon

https://businessforum.zyxel.com/discussion/comment/8285#Comment_8285

Thanks, Stanley, it work's. It look like, that the firmware is buggy?

Zyxel_Stanley

Hi @sirsalomon

After we checked this situation, it has to disable/enable interface after configured IPv6 IP address.

It can prevent IP address cache exist in interface.

After did it, interface is able gateway address automatically.