Poké
Classic
Network
Unofficial server for classic Pokémon
Poké Classic Network provides GTS, battle videos, and other related services for Generation IV and V games. It runs in combination with Wiimmfi and Kaeru WFC which provide general purpose NWFC emulation and SSL offloading, respectively. (For reasons beyond my control, I cannot guarantee compatibility with AltWFC servers at this time.)
All you need to do is change the primary DNS to
178.62.43.212 on your DS. Make sure the
secondary DNS is either 0.0.0.0 or
otherwise the same as the primary.
Failure to follow these instructions may lead to connection
instability and communication errors.