NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

klee608's avatar
klee608
Guide
Nov 18, 2024
Solved

BE9200 sending BPDU out wan port

Device is sending put BPDU on the wan port. This is causing the service provider switch to put the port into blocking state as they are not expecting an access port to receive BPDUs. Is there a settin...
  • BH_C's avatar
    BH_C
    Nov 28, 2024

    Hi klee608 , I've sent you a PM with the link for the trial firmware that should have fixed the BPDU issue. Thank you.

klee608's avatar
klee608
Guide
Nov 19, 2024

The device is model RS280.  The sticker on the bottom says BE9200 model rs280.  This router is attached to a Cisco switch.  The port is configured as an access port.  I know it sent a BPDU because the Cisco switch reported that it received a BPDU.  

 

*Nov 19 02:48:28.455: %SYS-5-CONFIG_I: Configured from console by console
*Nov 19 02:49:36.591: %SPANTREE-2-BLOCK_BPDUGUARD: Received BPDU on port Gi1/1 with BPDU Guard enabled. Disabling port.
*Nov 19 02:49:36.591: %PM-4-ERR_DISABLE: bpduguard error detected on Gi1/1, putting Gi1/1 in err-disable state
*Nov 19 02:49:54.699: %SYS-5-CONFIG_I: Configured from console by console
*Nov 19 02:50:25.571: %SYS-5-CONFIG_I: Configured from console by console
*Nov 19 02:50:38.063: %SYS-5-CONFIG_I: Configured from console by console
*Nov 19 02:50:42.643: %SPANTREE-2-ROOTGUARD_BLOCK: Root guard blocking port GigabitEthernet1/1 on VLAN3101.
*Nov 19 02:55:47.427: %SYS-5-CONFIG_I: Configured from console by console

plemans's avatar
plemans
Guru - Experienced User
Nov 19, 2024

Wonder if the bpdu is misinterpreting something. Might try disabling it on that port. 

  • klee608's avatar
    klee608
    Guide
    Nov 19, 2024

    My ISP will not disable bpduguard and guard root on their cisco switch.  I took a wireshark capture and it is a BPDU from the netgear.  I can see the netgear's MAC address in the source.