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In computer networking, network address translation (NAT, also known as network masquerading, native address translation or IP masquerading) is a technique of transceiving network traffic through a router that involves re-writing the source and/or destination IP addresses and usually also the TCP/UDP port numbers of IP packets as they pass through. Checksums (both IP and TCP/UDP) must also be rewritten to take account of the changes. Most systems using NAT do so in order to enable multiple hosts on a private network to access the Internet using a single public IP address (see gateway). Nonetheless, NAT can introduce complications in communication between hosts and may have a performance impact.
Enabling NAT in MikroTik:
-- Click on menu “IP”
-- Select Firewall Option
-- Select the “NAT” tab and add new rule
-- In general > Chain select “srcnat”
-- In Out. Interface selects your outbound interface.
-- Now Click on Apply
-- Now go to Action Tab and in Action Select “masquerade”
-- Now click on comment option and add any comment for your ease. Eg: Nat
-- Click Ok and Click ok Again.
The rule has been added and started its working. Have Fun!
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