Semi-automated L3 interface DNS records

Joe Abley jabley at
Tue Oct 23 02:18:20 UTC 2012

On 2012-10-18, at 14:57, "Pedersen, Sean" <Sean.Pedersen at> wrote:

> Does anyone out there have any experience with a script, tool or appliance that would help manage the creation and maintenance of DNS records for Layer 3 interfaces on routers and switches?

> We'd like to move toward this practice to help with troubleshooting and IPAM, but it's not feasible to do it manually. At a minimum, I was mulling over the idea of writing a script that would poll a device via SNMP to obtain interface information, parse it, compare the results to DNS, then generate a report if it found a miss. It wouldn't be fully-automated, but it would be better than doing that portion of the work manually. Cleaning up dead entries would be another issue.

AS6461 once had the bulk of its reverse DNS auto-generated from awk scripts. It's the only way to travel.


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