Today we have a replacement of old server in data center, the new server was done the setup in office, and able to remote (RDP) with all the setting of windows firewall.
allow TCP/UDP for rdp port, scope limited remote's IP
But the thing happen when i plug it in to data center router. (juniper SSG5), it is unable to connect remotely. and after some troubleshooting, and i enable the ICMPv4 in windows firewall.
allow ICMPv4 for any remote's IP (scope IP will fail the rdp)
And finally the remote able to get thru. I try to unable/enable a few time. it was same result.
why?
Anyone able to explain to me, as i know RDP only need TCP/UDP.
Some info:
OS: windows server 2019
Firewall: Juniper SSG5 (very old firewall)
RDP port: not default
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