05-29-2019 11:16 PM
Good day folks
I have a few /24 server subnets with static hosts assigned to each IP address in that subnet. Some subnets have now reached capacity and I know there are hosts that the server team no longer use that can be reclaimed and used again for new servers. None of the IPs in these subnets are given out via Infoblox DHCP.
My question is, how do I pull an automated, weekly/monthly report that tells me which hosts in that particular subnet are still active? By active I mean that the hosts respond to a ping or TCP SYN or similar polling mechanism.
06-20-2019 05:53 PM - edited 06-20-2019 05:56 PM
If you have a network insight server added to your Infoblox infrastructure(ND appliance) & if you’re indexing data for ib_discovery, then this simple search should meet your use-case as i understand :
index=ib_discovery source="ib:discovery:ipaddr_activity" 10.129.32. | search IN_USE_FLAG=1 | sort -_time | dedup IPADDR | eval LATEST_STATUS=case(IN_USE_FLAG == "1", "USED", IN_USE_FLAG == "0", "UNUSED") | table _time IPADDR LATEST_STATUS | sort IPADDR
Replace the green network ID with that of yours & you could schedule a hourly/daily/weekly report. I recommend verifying the returned status during the initial stage, to confirm its reliability. We've observed some bugs in that area in the past. Hope that'll be helpful!
07-07-2019 11:57 PM
Thanks for the reply, Mohammed. Unfortunately we do not have a Network Insight server in our setup. Is there not something similar I can run against the report server? Thanks.