Dont have a router there, only a 3750 tied in via a fiber link.I have been looking at the Cisco docs for getting this to work but nothing yet.Using Netflow, I could see the ip address of the offender but couldnt see the hostname of the computer/workstation that was the offender.
Before continuing These steps assumes that you already have a working copy of isc-dhcp-server and bind9 installed.
While many things will work with an incorrect configuration, it may give rise to errors in the output from dcdiag and netdiag that can make it harder to identify real problems; also clients and servers can have problems locating services.
Simple AD forwards DNS requests to the IP address of the Amazon-provided DNS servers for your VPC.
using the existing DNS name for the Active Directory domain name) then everything should work with minimal additional configuration.
If you have problems, make sure that your firewall configuration is correct, as per the next section.