When you have multiple individuals in a household sharing the same connection, you can register characters of lvl 5 and upwards for LAN permission.
To acquire the permission to play on a LANs, you have to mail Elysia ingame with the following information:
LANowner: Elysia (this will be the contact person for the LAN)
Playername1: Elysia, Elysiatest, Elysiachannietest.
Playername2: Ely, Elytest, Elychannietest.
New characters: Elysiachannietest, Elychannietest.
Once you have mailed this information, please wait until you receive confirmation that your LAN has been registered or updated before logging on simultaneously.
Of course, all the usual rules apply: 5/15 wait times, only one character per individual player ingame at any time (aka no multiplaying your own alts), have to play the same race etc.
If you are statting for a LAN and thus by definition are on with an unregistered character, please let an immortal know ingame, so we can make a note of it and you don't get slammed for multiplaying.