if i have to lan( that means two ip address) then how can i access particular ip address for accessing site and telnet services

Let me explain telnet. To connect to any computer using telnet, the computer has to be running the telnet daemon (telnetd). That means that telnet server software is running on that machine. It also means that you have to have an account on that machine. On my LAN, I have a laptop running FreeBSD. SSH has replaced telnet for the most part for security reasons, so I have SSHD running instead. To connect from my Windows machine, I use PUTTY client which is free. When I SSH to the box, I am greeted with a login prompt. login as: guapo Using keyboard-interactive authentication. Password: Last login: Tue Oct 28 20:05:54 2008 from 192.168.0.97 Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD 7.0-RC1 (GENERIC) #0: Mon Dec 24 12:18:24 UTC 2007 Welcome to FreeBSD! $ The $ is the prompt. The system is waiting for the next command. $ finger tarunkumarsinghal@yahoo.com [yahoo.com] Trying 206.190.60.37... finger: connect: Operation timed out $

actually, i have two ISP and 1 of them gave me static ip and other gave me dynamic ip. when i try to send mail through telnet on yahoo, gmail server when using only dynamic ip it says you can not send message you have dynamic ip but when i send it through static ip it send mail and my question was how can i send mail when i am connected to both the connection using telnet.

You can't use telnet on either yahoo or gmail to send email.

Telnet connection should have selected the route based on tcp/ip rules. They get sort of complex. To prevent a route you don't wish an easy is to disable the connection or remove gateway ip. Unless you are using a tunnel for telnet. "Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10