public ip to lan?

RouterOS Beginner Basics
1

is this correct?

/ip firewall nat print
0 chain=srcnat action=masquerade src-address=192.168.88.0/24
1 chain=srcnat action=masquerade out-interface=!Bridge

i want to like normal router, lan can saw real ip form eg.BT.
google gives very complex examples.:open_mouth:
by Google Translate.

2

remove/disable them both and replace with

/ip firewall nat
add chain=srcnat action=masquerade out-interface=<external if>

Basically:
you only need one, the second could be good if you only have bridge and external if, but better make it explicit

3

That is the right rule for a dynamic IP but for static, it would be…
/ip firewall nat
add chain=srcnat action=src-nat to-address=IPofyourWAN out-interface=

4

what is “external if”??

thx for reply

5

The interface, which is used for your internet on L3. We can only guess. It might be ethernet port (if you’re getting WAN IP address using DHCP or statically configured WAN IP address) or pppoe1-out or …

6

oh. thx.

is fiber modem → rb750gr3(DHCP client public ip / DHCP server private IP) → PC

7

is most probably ether1 .