Hi toshiro san, here is a simple step for you.
1. add a custom mob in your mobdb eg 2513
2. add this line in your mob_avail in your db folder "2513,24" (2513 is your custom mob id, 24 is gunslinger job id)
3. now the mob id sprite 2513 will be a gunslinger mob.
Yeah the only information I can get is from Login Server, Map Server and Char Server just stay quite when he connect it.
If you wanna take a look with teamviever, PM me when you are online~
Thanks benching for almost 3 hour testing and tweak, finally figure out the problem is at the noip.
Conclusion is: just change my yxx.noip.me to yxx.no-ip.org and everything is in good condition~
yuchinin's post in How to add Character type Custom mobs. was marked as the answer