NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Jeremyse
Jun 09, 2020Tutor
Uplink IP
I have another curious issue. I am running multiple switches in my environment and when I look at the connected neighbors every link between the switches has a foreign IP that does not match the IP ...
- Jun 15, 2020
I got your private message and forwarded the diagnostics file to the higher tier of NETGEAR Support to check it.
I just got feedback and it was confirmed that there are network parameters set to 169.254.0.239. This is the cause on why the switch advertise this as its Mngt IP Address. The only way to clear this is to factory reset the switch and reconfigure it. To reconfigure it, be sure to delete it from NETGEAR Insight then re-add it. Do NOT reload the configuration on the switch but be sure to reconfigure the settings via NETGEAR Insight.
Regards,
DaneA
NETGEAR Community Team
DaneA
Jun 10, 2020NETGEAR Employee Retired
From the image you have attached, are you able to login to the GC728XP switch using the Management IP Address you assigned to it?
The 169.254.X.X address shown as the Mngt IP Address under the Neighbor Info section is a self assigned IP Address. This means it didn't get a DHCP address or it has a static address at the time of LLDP message. It is possible that there is an interface on the switch that has a self assigned address and is sending that as its management IP address.
Regards,
DaneA
NETGEAR Community Team
- schumakuJun 10, 2020Guru - Experienced User
DaneA the OP clearly stated the configured IP addresses, the screenshot does proof the IP connectivity to reach the Insight infrastructure is perfectly working - best guess over the 10.0.0.0/20 network, not over ZeroConf ...
Probably something going mad due to the 10.0.0.0/20 subnet - but unclear how the ZeroConf address comes into the game at all. Don't see this issue on a larger amount of Insight managed environments.
- JeremyseJun 10, 2020Tutor
Yes I can ping and login to the switch locally using the mgmt IP address I assigned.. The ports in question are trunked for all VLANs becuse they interconnect the switches. It appears to work fine, just looks really weird. I would expect the neighbor IP to be the MGMT ip in VLAN 1 that I assisgned instead of the 169....
That begs the question do I fix it, if so how?
- DaneAJun 11, 2020NETGEAR Employee Retired
Thank you for your response. From the NETGEAR Insight App, select the GC728XP then scroll down and tap Diagnostics. Then, tap Share Diagnostics then enter your e-mail address and tap Send. Once you have receive the diagnostics file, kindly upload it to Google Drive then send its download link to me via private message.
Regards,
DaneA
NETGEAR Community Team
- DaneAJun 14, 2020NETGEAR Employee Retired
I got your private message and sent the diagnostic file to the higher tier of NETGEAR Support to check it. I got a feedback that everything looks correct from the Core and the remote side needs to be checked.
Kindly send me also via private message the diagnostics file of the SW-Leaf switch.
Regards,
DaneA
NETGEAR Community Team
- DaneAJun 15, 2020NETGEAR Employee Retired
I got your private message and forwarded the diagnostics file to the higher tier of NETGEAR Support to check it.
I just got feedback and it was confirmed that there are network parameters set to 169.254.0.239. This is the cause on why the switch advertise this as its Mngt IP Address. The only way to clear this is to factory reset the switch and reconfigure it. To reconfigure it, be sure to delete it from NETGEAR Insight then re-add it. Do NOT reload the configuration on the switch but be sure to reconfigure the settings via NETGEAR Insight.
Regards,
DaneA
NETGEAR Community Team
- JeremyseJun 15, 2020TutorWow, ok I guess I need to plan for my next maintenance window.
- JeremyseJun 19, 2020Tutor
Ok, so last night, I attempted to remove and restore switches to factory condition.
Moved backward starting with access and leaf switches then to core. Results, no luck, still get the zero conf address as the mgmt IP for the interface connecting to the core. The interesting thing is when I removed the core switch from the app, it came up and accepted the Static IP address from my DHCP server. When I added the switch to the insight portal, it dropped the reserved IP and took another. I have included the event logs concerning the Core switch. So what else can we do? Do I need to RMA the core switch? It works but not correctly, and that is always a concern.
Related Content
NETGEAR Academy

Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!