I really need your help, on a lan and vnc

[Alejandro]

Sorry about my bad English.

I have a LAN with xp PRO and ICS with 2 net cards.

1: LAN card is connected to cable modem with dynamic ip

2: LAN card (192.168.0.1) is connected to my LAN with a switch linksys with
4 ports.



My LAN have an internal IP 192.168.0.x.

In a machine I have vnc with defaults ports (5900-5800 for java) with ip
192.168.0.72 and I can connect with java viewer but when I write the
password show me this error  rfb.authfailure

Any one can help with this, I check this forum but I cant see the answer to
my problem yet.

Need I set some ports on LAN cards of the first machine that is connected to
internet?

Thanks in advance. And sorry for my bas English.