Firewall Rules vs. Inbound Port Forwarding vs. NAT Mappings... When to Use Which?


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Firewall Rules

Selective filtering of data traffic from LAN to WAN (Outbound) or from WAN to LAN (Inbound) Application: To block or allow a specific protocol going across the Peplink Balance device

Inbound Port Forwarding

Also known as Inbound Access for Peplink Balance, allows internal hosts such as web server and mail server etc., behind Peplink Balance to be accessed from the Internet. Application: To allow servers to be accessed from the Internet for the specific protocol, e.g. HTTP, FTP, etc.

NAT Mappings

Also known as 1-to-1 NAT, allows internal hosts such as web server and mail server etc., behind Peplink Balance to communicate to the Internet via all protocolsIt also specifies the WAN IP address for outgoing traffic from a host behind Peplink Balance. Application: To allow servers to be accessed from the Internet for All protocolsTo specify a WAN public IP address for outgoing traffic from a LAN host, such as a mail server

Inbound Access Services vs Inbound Firewall Rules
PepLink 580 - Passing L2TP Traffic
IPSEC VPN connection Peplink - 3rd party hardware