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Cannot connect RDP through Watchguard Firewall

Posted on 2011-02-16
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Last Modified: 2013-11-21
I Just added a Watchguard XTM 21 firebox and I cannot connect to our Server 2008 using RDP.  We had a Linksys router firewall before and there were no problems connecting before.  I have already allowed the RDP rules in the firebox and I believe everything is forwarding correctly to the IP of the server.  No matter what I try I just cannot make a connection.  I cannot find a whole lot of information on the forwarding rules for the watchguard firebox.  Any help would be great!
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Question by:amerthermo
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zmorvik earned 2000 total points
ID: 34913501
Do you have a NAT/PAT rule in place and the inbound rule allowing the TCP/3389 (RDP) traffic in?  The linksys just have a place to add in the internal ip and what port. Since they are a "Home Grade" firewall they dont have both a NAT/PAT section and a set of ACL(rules/policy's).  The linksys just creates these behind the scenes, so it appears as a single step to the end-user.

You will see a second screen that shows the NAT/PAT's and one that shows the ACL's(Rules/Policy's)
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by:amerthermo
ID: 34916768
That is what I was doing, with no success.   I changed the rules to a static NAT with the IP of the server and everything works now.  Thanks!
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