I have a general & quick query with regards to VPNs.
I am looking to setup IPSEC VPN Tunnels & was wondering:
1. What ports need to be opened on the firewall to enable the VPN protocols?
2. I will have 6 remote sites connecting up to HQ. The HQ's lan IP setup is 192.168.0.xxx - if i setup all six remote sites with the IP address 192.168.1.xxx - will my VPN work or do i need to setup different IPs for all locations? (e.g. HQ: 192.168.0.xxx - Site1 = 192.1681.xxx - Site2 = 192.168.2.xxx - etc...)
What would the effects be if i were to have the sites with the same IP Addresses?
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