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Difference between RDP, ICMP and IP protocols.

Posted on 2009-05-04
Medium Priority
Last Modified: 2012-05-06

I have set up an IPSec policy for a machine to allow RDP and ICMP but require security for all IP traffic.
Now I can ping the machine to which the policy is applied but can not RDP to it.
I was wondering why ICMP is working and RDP is not, though RDP works at the transport layer and the ICMP at the IP layer or network layer.


Question by:jskfan
  • 2
LVL 32

Accepted Solution

Kamran Arshad earned 1500 total points
ID: 24302622

Have you allowed the port TCP 3389 which is used for RDP?

Author Comment

ID: 24305231
<<Have you allowed the port TCP 3389 which is used for RDP?>>

Oh yes, I created a rule that allows RDP for TCP port 3389, but it seems like the Require security for AllIPTraffic overrides that rule. But I wonder why it doesn't override the rule of ALLICMPTraffic(permit).

Author Comment

ID: 24312664
I gues I should have put 3389 where it says "From this port" , and select to Any Port.
What I did was "From Any Port" to "This Port" and typed 3389 in This port field.

Now it works.

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