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Thursday, December 24, 2015

NAT with MikroTik ( One to One Mapping)


Using Multiple Public IP to NAT private IP addresses


If we use private ip in our server and want to access that server from internet then we need to set 1 to 1 netmap bellow are the configuration of netmap, you just need to change the public IP, Private IP and WAN interface name as per your configuration.

say we have 4 public ip address 10.10.55.171 to 10.10.55.174
and we want to netmap private IP address 192.168.123.71 to 192.168.123.74


/ip address add address=10.10.55.171/32 interface=wan
/ip address add address=10.10.55.172/32 interface=wan
/ip address add address=10.10.55.173/32 interface=wan
/ip address add address=10.10.55.174/32 interface=wan

/ip firewall nat add chain=dstnat dst-address=103.10.55.171 action=dst-nat to-addresses=192.168.123.71
/ip firewall nat add chain=dstnat dst-address=103.10.55.172 action=dst-nat to-addresses=192.168.123.72
/ip firewall nat add chain=dstnat dst-address=103.10.55.173 action=dst-nat to-addresses=192.168.123.73
/ip firewall nat add chain=dstnat dst-address=103.10.55.174 action=dst-nat to-addresses=192.168.123.74

/ip firewall nat add chain=srcnat src-address=192.168.123.71 action=src-nat to-addresses=103.10.55.171
/ip firewall nat add chain=srcnat src-address=192.168.123.72 action=src-nat to-addresses=103.10.55.172
/ip firewall nat add chain=srcnat src-address=192.168.123.73 action=src-nat to-addresses=103.10.55.173
/ip firewall nat add chain=srcnat src-address=192.168.123.74 action=src-nat to-addresses=103.10.55.174

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