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Microsoft DirectAccess Best Practices and Troubleshooting by Jordan Krause

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RDP to a DirectAccess client

IPv6 routing established via ISATAP tunnels? Check. Firewall rules on the DirectAccess clients to allow this traffic? Check. Now we are really ready to test. Log onto one of your newly furnished ISATAP machines inside the network, and try to contact a DirectAccess computer by name. A common first test is ping, which is fine, though if we get down into the nitty-gritty, we would find that ICMP traffic actually moves outside of the IPsec tunnels, and so a successful ping reply doesn't necessarily mean that everything is working. It usually does though. Otherwise, the most common testing platform is an RDP connection. This, of course, implies that you have enabled the system rule on those systems to allow RDP connections ...

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