Forum Discussion

zazik

Aspirant

Dec 03, 2017

Solved

GS110TP won't retain VLAN membership on port 8

Hello,

I have some weird VLAN issue on GS110TP.

My setup looks like this:

Router has only one ethernet port, so WAN (VLAN 20) and LAN (untagged) traffic is going through the trunk port 7 of the switch.

From there VLAN20 extends to port 8 to communicate with ISP, the rest of the ports are for LAN.

Switch config is:

Everything works great with this setup.

But, once I reboot the switch, VLAN membership gets lost for port 8 (PVID config remains though):

It results in a LAN traffic leak to ISP and WAN traffic is not going out.

Runnig on th latest 5.4.2.30. Port 8 indeed can function properly untill reboot.

I tried saving the good config and restore it after boot, or even after factory defaults, nothing helps.

Seems like a firmware bug. I'd appreciate if anyone would spare 10 minutes to confirm this.

Thank you.

Troubleshooting

DanielZhang
Dec 04, 2017
Hi Zazik,

Thanks for your reply.:smileyhappy:

We found the the reason that make your port 8 lost VLAN configuration.

The "Probe" status means that port has been set to 'destination of port mirror'.

In this status, the port will recover VLAN configuration to default after reload just as you

see.

Actually port 8 has 'Probe' status will also impact your network forwarding if the purpose is not packets capture.

So I suggest you to delete port mirror configuration on port 8 just as following screenshot if you don't want to setup packet capture debugging for your GS110TP.

Then configure VLAN PVID & member on port 8 again that will not lost after reload or power cycle.

May the solution help you:smileyhappy:

Thanks,

Daniel.

4 Replies

DanielZhang
NETGEAR Expert
Dec 03, 2017
Hi Zazik,

Welcome to NETGEAR community！:smileyhappy:

I also has a GS110TP but can't see same issue as your step.

1. Did you have other configuration on port 7,8?

2. Could you please share you configuration about GS110TP？

Such as: LAG,VoIP.

Here is my GS110TP》

Thanks,

Daniel.
- zazik
  Aspirant
  Dec 03, 2017
  Hi Daniel,
  All factory defaults, no LAGG, no VoIP, the only things configured are the ones I posted.
  One thing that might explain the behavior is this:
  The question is what is that Port Type "Probe" on port 8?
  And can I change it to some other port?
  Thank for looking into this.
  Really appreciate it.
  - DanielZhang
    NETGEAR Expert
    Dec 04, 2017
    Hi Zazik,
    
    Thanks for your reply.:smileyhappy:
    
    We found the the reason that make your port 8 lost VLAN configuration.
    
    The "Probe" status means that port has been set to 'destination of port mirror'.
    
    In this status, the port will recover VLAN configuration to default after reload just as you
    
    see.
    
    Actually port 8 has 'Probe' status will also impact your network forwarding if the purpose is not packets capture.
    
    So I suggest you to delete port mirror configuration on port 8 just as following screenshot if you don't want to setup packet capture debugging for your GS110TP.
    
    Then configure VLAN PVID & member on port 8 again that will not lost after reload or power cycle.
    
    May the solution help you:smileyhappy:
    
    Thanks,
    
    Daniel.