GS1900-24 Firmware Issues

dugnizetru

Well... it seems your forum is also buggy and cuts code blocks after the first line...

Let's see if I can attach a PDF conversion of what my post initially contained.

Zyxel_Derrick

Hi @dugnizetru

Thanks for the information
Could you PM me the configuration of your switch?
Also, could you help to capture the packet on switch when the firmware is V2.50 and V2.40 and provide to us?
BTW, what is the model name of your router?
Thanks for your cooperation in advance

Best regards,
Zyxel_Derrick

dugnizetru

@Amodin @Marcelo

If you are still stuck on an old firmware version because of this bug, I've found a workaround to make LACP work with latest firmware version.

Even if you LACP link only transport VLAN tagged traffic, you need to disable the filtering of tagged only frames on the port members of the LACP link aggregation.

• Go to: Configuration -> VLAN -> VLAN
• Go to the Port tab
• Select all child interfaces of LACP links
• Edit the "Accepted Type" to "ALL"

I don't know if this has any security implication. I've set some non existing VLAN ID on these ports PVID to try to limit leakage of the native VLAN.

Here is an config example with an LACP link that has 3 port members 1, 2 and 3:

Zyxel_Derrick

Hi @dugnizetru

Sorry for the inconvenience again and thanks for your workaround
We have released a date code to fix this issue
Please upload it and test again if the issue still exist
Thanks

Best regards,
Zyxel_Derrick