ident ja aaltoviiva

"Ident is important on IRC as a large number of people connect to IRC servers via bouncers which either serve multiple users or are hosted on shared servers. Without ident there would be no way to ban a single user of a bouncer from a channel or network without banning the entire bouncer. It's also needed when complaining to the bouncer operator so they can identify which user is causing trouble. When an IRC server fails to get an identd response it has to fall back on the username given by the client. Ircds usually prefix usernames obtained directly from the client software with ~ (tilde) to indicate that they are not ident usernames and may be faked by the user (although with modern single-user home computers, the ident username itself may be set to whatever the user wants and is often returned by the same IRC client as the rest of the client information). Some IRC servers even go as far as blocking clients without an ident response, the main reason for doing this is it makes it much harder to connect via an "open proxy" or a system where you have compromised a single account of some form but do not have root."
http://en.wikipedia.org/wiki/Ident

juuh elikkäs suomenkielellä, tuo aaltoviiva tulee siitä kun irc palvelin jonne koetat yhdistää ei saa asiakasohjelmalta ident pyyntöön minkään sortin vastausta, olkoonsa se sitten ohjelmasta pois päältä tai muuten vain estettynä.

jos ident palvelut on ohjelmassa päällä, sitten syynä yleensä on joko palomuuri tai nettiyhteyden reititys mikä estää tulevat pyynnöt (lue. serveriyhteys) porttiin 113 jota käytetään ident palveluissa.

avaa siis tuo kyseinen portti sisäänpäintulevalle liikenteelle ja tuo aaltoviiva pitäisi katoaman kun yhdistäs irc palvelimelle seuraavan kerran.