using src nat to convert just one specific PC's IP to Public

RouterOS Beginner Basics
1

hi everyone!
i have a problem with my rb2011:
i have 128 public addresses but i cant use src nat to NAT 10.5.50.42(private) IP to one of my public ips x.x.x.x/25 address
i have hotspot running and i use ip binding in hotspot for this private ip address

chain=srcnat action=src-nat to-addresses=x.x.x.x src-address=10.5.50.42
out-interface=Ether1(WAN)
but when i used this my PC’s internet will be disconnected

2

Try with action masquerade between your hotspot and WAN

3

masquerade is working but ineed to translate 10.5.50.42 to someting else (x.x.x.x) that is my other public ip for example!

4

Try with firewall dstnat to XXXXXX

5

its not make sense
theoretically this is wrong i think

6

i think i know where is the problem
how i could tell my router thath accept this public range of ips
iset in wan but i cant use all of them
i can use jutst x.x.x.3/25
just x.x.x.3

7

Post your export.

Also read: http://wiki.mikrotik.com/wiki/How_to_link_Public_addresses_to_Local_ones

8

ive done that!!
src nat is working at first
but the problem is here
when i put x.x.x.x/25 in ether1 mikrotik just take first ip to that interface
ive set manually another public ip to interface ether1 and then i can use my SCR nat rule and now its working

9

The SRC NAT rule which provides SCC NATing to a particular SRC IP based on certain criteria (e.g. the specific SRC Address) needs to come before the general purpose Masquerade rule. Make sure that the specific SRC NAT rule is above any Masquerade rule for the same interface.

If that doesn’t help clear the problem post your NAT rules.