Hi,
thanks to Sander for the information and debugging. This is fixed after r5326.
This is net-snmp related bug: http://sourceforge.net/p/net-snmp/bugs/2251/
On 16.04.2014 17:00, Sander Steffann wrote:
Hi,
This morning at 6:30 the IPv4 addresses of my servers suddenly started changing. I see a lot of messages like:
IPv4 changed: 83.247.10.20/27 -> 83.247.10.20/3 IPv4 changed: 83.247.10.21/27 -> 83.247.10.21/3 IPv4 changed: 83.247.10.22/27 -> 83.247.10.22/3 IPv4 changed: 94.142.242.194/29 -> 94.142.242.194/5 IPv4 changed: 94.142.242.195/29 -> 94.142.242.195/5 IPv4 changed: 94.142.242.213/29 -> 94.142.242.213/5 IPv4 changed: 94.142.242.214/28 -> 94.142.242.214/4 IPv4 changed: 94.142.242.215/28 -> 94.142.242.215/4 IPv4 removed: 127.0.0.1/8
Besides showing me that I have some misconfigured subnet masks in the 94.142.242.208/28 subnet, it also seems to have some consistency:
- A /27 turns into a /3
- A /28 turns into a /4
- A /29 turns into a /5
My VMware ESXi machines also suddenly show: IPv4 added: 83.247.10.11/32 IPv4 added: 83.247.10.12/32 IPv4 added: 83.247.10.13/32
I also noticed some broadcast addresses being added: IPv4 added: 83.247.10.31/27 (this is an Ubuntu 14.04 server with 83.247.10.29/27) IPv4 added: 83.247.10.31/27 (this is is a CentOS 5.10 server with 83.247.10.7/27) IPv4 added: 83.247.10.47/28 (this is a vcenter applicance) IPv4 added: 83.247.10.47/28 (this is a Dell DRAC card) IPv4 added: 127.255.255.255/8 (this is a vcenter applicance)
So, subnet sizes went weird on some systems, 127.0.0.1 disappeared from some systems, some ethernet adapters now show both the real IP address and the broadcast address on some systems. But different mixes of results across different platforms.
Might this be related to r5317?
Cheers, Sander
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