Cisco ASA clients home IP being register into DNS

I've got a problem here that just started up. It looks like when a user connects to our ASA both the IP the ASA gives out and the home IP get registered into DNS. Who do I keep the 192.168 IP's from being entered into DNS?
kevlauseAsked:
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g000seCommented:
Hi,

Does the user have the same IP Address subnet as the company's internal IP address subnet?

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kevlauseAuthor Commented:
No internally we use a 10.160.xxx.xxx and they are using a 192.168.xxx.xxx
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kevlauseAuthor Commented:
Sounds exactly like what is happening. I guess there isn't a fix. I wonder why it just started..
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g000seCommented:
Did you try- "disabled the LAN NIC from registering in DNS  which has helped my situation." from the link?
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kevlauseAuthor Commented:
I can't really do that because when the user comes back into the office and connects to the network here I want the lan card to register in DNS, The only time I don't want it to register is when they are connected by VPN.
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