IP Address of Servers keep on changing
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
09-30-2024 12:10 PM
Hi All,
In my environment, IP address of servers keep on changing. Hence, the same IP address could be allocated to another server after some time which makes it difficult to troubleshoot in case of any discovery related issues.
Can anyone explain :-
1. Is it normal behavior of changing IP address randomly
2. If IP is not constant then instead of checking the hostname, should I check the IP and ensure that IP address in available in CMDB irrespective of CI name
3. When the IP gets changed, it will create a new CI so in that case should I mark the previous CI as "Retired"
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
09-30-2024 06:05 PM
Hi @Alok Kr Gupta, IP Addresses changing on servers isn't uncommon, so I'd say you're better off setting up IP Ranges or subnets. Having a new CI created every time the IP Address updates will begin to clutter the CMDB - What happens if the CI moves back to a previous IP; you'll have multiple CIs of the same server and IP Address, with the state reflecting if it's live or not.
Instead of having a new CI created, look at the identification and reconciliation rules (IRE) setup for your servers so the CIs are being updated rather than duplicated for each new update.
Check the below for some more ideas around IP Addresses and Discovery:
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0687602
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0864627
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0821592
Cheers
