Bantypes.

To start of there are 9 sorts of bantypes.

All settable with: /mode #channel +b 'bantype' (Look for the bantypes under this)

Bantypes:

1. *!user@host
2. *!*user@host 
3. *!*user@*.host
4. *!*@*.host
5. nick!user@host
6. nick!*user@host
7. nick!*@host
8. nick!*user@*.host
9. nick!*@*.host

(Bantypes 2 and 3 are the most used ones and the preffered ones).