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[7.500][BUG][ANSWERED] PPTP / DNS / IPS issue

Hi folks,

another isse - when I diailin using PPTP (SSL VPN has the same) I can't resolve INTERNAL host via DNS. External hosts are working.

As soon I disable IPS I can resolve my internal host too...

IPS-Log:
2009:09:28-10:57:27 gateway snort[14244]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="DNS dns response for rfc1918 192.168/16 address detected" group="241" srcip="192.168.x.x" dstip="192.168.1.zzz" proto="17" srcport="53" dstport="62137" sid="15935" class="Potential Corporate Privacy Violation" priority="1" generator="1" msgid="0" 

2009:09:28-10:57:27 gateway snort[14244]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="DNS dns response for rfc1918 192.168/16 address detected" group="241" srcip="192.168.y.y" dstip="192.168.1.zzz" proto="17" srcport="53" dstport="49482" sid="15935" class="Potential Corporate Privacy Violation" priority="1" generator="1" msgid="0" 
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