binglenozumi

That means you have packet issues. Check that you changed this setting in src/commom/mmo.h:

#ifndef PACKETVER     #define PACKETVER 20131223#endif // PACKETVER

According to the client you're using, and that the client is hexed right.

But that packet thing is shown when I turn on athena-start, which I haven't connect any client to it though...

Actually, you can use 3rd party DDNS services (I've been doing that with no-ip), the problem is that 127.0.0.1 in char_ip or login_ip, try to change it into your DDNS name (kornhill.dyndns.org) or comment them out to trigger auto-detecting. What you do with that 127.0.0.1 is sending client off to look for x-server on the PC they are opened with.

I've tried your method, it returns this (no matter is using DDNS name or comment them out)

Unknown packet 0x006a received from login-server, disconnecting.

So I have no idea what is going on, it looks like there is something happening, but it doesn't