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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 I assigned to the switch.
I have the following devices with configured IPs:
GC728X - core switch 10.0.0.3/20 VLAN1
GC728 XP- leaf switch 10.0.0.4/20 VLAN1
GC510 PP -access Switch NW 10.0.0.5/20 VLAN1
GC108P- access Switch SE 10.0.0.6/20 VLAN1
When I look at the connected neighbors option the Mgmt ip listed for my uplink between the core and leaf switch is 169.254.0.239
This condition exists between all the switch links just varying the last octet. I have only one static route, and I believe VLAN routing is off.
I am a little beffudled and I am sure i just overlooked something but any help in fixing this is apreciated.
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
15 Replies
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
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.
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?
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
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
- Wow, ok I guess I need to plan for my next maintenance window.
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