Dear folks,
How to change public ip’s when users login and logout.
Clearly…
after a user login to hotspot wan has to change when that user relogin. Because IRCTC will allow only two tickets per one WAN ip.
Really sorry for bad english..
Plz help me…
Could you explain it a little bit more?
Login to where?
Does IRCTC means Indian Railway and Catering and Tourism Corporation Limited?
And are you saying that they only sell two tickets per client IP and you want to change your IP every time you go there?
Incredible! 
How many public IP addresses do you have?
You can even change public addresses even on a per-tcp-session basis by just simply setting up src-nat with a public subnet configured as the to-addresses. But I guess this is highly unrecommended.
I have 5 ip pool. Can you please explain briefly…
/ip firewall nat add chain=srcnat src-address=(private address pool) action=src-nat to-addresses=(public address pool)
This rule gives per-session NAT. But it’s a very bad idea.
Ya thanks its working