I am using openvpn on a Ipfire firewall to connect to 2 offices together, and it works well.
I dont use any other vpn on the 2nd office, but i do have a card machine, and they scan the network for which ports are being used.
is it possible to restrict port 1194 in the firewall rules to only allow 1 ip address.
I know i have the option of changing the port number. but that would be a pain as i would have to re-create it and i only have remote access at the moment.
In the second office, we only use the VPN to connect the 2 offices, no one else connects to the VPN,
The card machine is to take card payments and we have to have a PCI DSS, to confirm our network is secure. but it fails as port 1194 is open for VPN. but if can restrict the port to only 1 IP address, i can get round this issue.
I have tried to do some rules, but without success, without no rules port 1194 is open. what i need to do it close it everything but 1 ip address.
Port is open or closed. No other options.
Firewall can drop connection to OpenVPN service which are not coming from the pubblic ip address you specified…