How to -_allow_access_of_vnc_server_hosted_on_the_internet_from_a_specific_lan_ip_address

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How to -_allow_access_of_vnc_server_hosted_on_the_internet_from_a_specific_lan_ip_address

  1. 1. How To – Allow access of VNC server hosted on the Internet from a specific LAN IP addressAssumption: 1. LAN IP address Range: 10.10.10.20 – 10.10.10.50 2. Allow access of VNC server only from 10.10.10.20 and block access from rest of the LAN IP addresses. To allow access of VNC server from 10.10.10.20 and block access from rest of the LAN IP addresses, we have to drop the entire traffic from LAN to VNC server while allow VNC traffic only from the specific host. For this, create below given two firewall rules with the following parameters: Note: Firewall Rule 1 should always precede Firewall rule 2 Rule 1. Create firewall rule to allow access from IP address 10.10.10.20 Parameters Value Source Zone - LAN Host – 10.10.10.20 Destination Zone - WAN Host – VNC Server’s IP Address Services/Service Group VNC services (if custom port for server) Apply Schedule All the Time Action Accept Apply Source NAT MASQ Rule 2. Create firewall to drop the traffic from LAN to VNC server Parameters Value Zone - LAN Source Host - Any Host Zone – WAN Destination Host – VNC Server’s IP Address Services/Service Group VNC Services (if custom port for server) Apply Schedule All the Time Action Drop Document version – 1.0-25/08/2007

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