Quantcast
Viewing all articles
Browse latest Browse all 184040

duplicate DNS entries with Cisco ASA VPN and Windows DHCP server

I'm on a 3 month staff augmentation contract at a client helping them catch up and get some lingering projects knocked out. One issue we're having here is that when clients connect through their cisco vpn client to the cisco asa5515x, we get duplicate dns entries. the asa is doing a dhcp relay through to the windows server where the devices get an address in a separate subnet. The trouble is that we'll get many duplicate dns entries in that subnet from people connecting and disconnecting. one of the core application servers here requires a valid dns lookup both ways as part of its authentication.

I can see that the unique ID that the asa is providing for each device is unique, but, if I understand correctly, the asa will provide a unique id for every dhcp request, rather than keeping that unique id tied to the mac address of the client,...


Viewing all articles
Browse latest Browse all 184040

Trending Articles



<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>