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VPN 3000 WebVPN DNS problem

I have a VPN 3060 running 4.7.2 B, and am testing WebVPN. The concentrator does have DNS servers configured, but WebVPN users cannot resolve hostnames. The concentrator gives an error saying it is unable to resolve the host. Has anyone experienced this before, and is there a fix? Thanks.

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Re: VPN 3000 WebVPN DNS problem

Groups defined with a large list (greater than 10) of WebVPN ACL entries that are erroneous or not DNS-resolvable cause the VPN 3000 Concentrator to consume all the CPU cycles as it tries to parse the ACLs entries. As a result, other tunnel establishment and HTTP(S) management sessions are denied.

http://www.cisco.com/univercd/cc/td/doc/product/vpn/vpn3000/4_7/471con3k.htm

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