Putty: Connection from Win 98 to Linux

I don't understand why I cannot connect from Win 98 to Red Hat 9 using putty(ssh).

According to nmap on RH box:
[root@localhost sbin]# nmap 192.168.1.100
Starting nmap V. 3.00 ( www.insecure.org/nmap/ )
Interesting ports on (192.168.1.100):
(The 1593 ports scanned but not shown below are in state: closed)
Port State Service
22/tcp open ssh
79/tcp open finger
80/tcp open http
111/tcp open sunrpc
139/tcp open netbios-ssn
443/tcp open https
3306/tcp open mysql
6000/tcp open X11

SSH port # 22 is open.
Linux IP: inet addr:192.168.1.100

Both Linux and Windows boxes are under LinkSys router.
Windows Ethernat Ip is: 192.168.1.101.

So From Windows 98 I'm trying to connect using Putty. I entered the IP address: 192.168.1.100 and choosed Port 22 for connection.
After 1 min, I received error message that the" Unknown Network Error" Why I cannot connect to Linux box? Any help will be appreciate.

Thanks

Sorry, I can't really help you but I also use Windows 98 and Putty works just fine with me... But since it sais 'Unknown network error' it may have something to do with your internet connection. Are you connected by a LAN at work? Or by yourself at home?

Can you ping the linux box from W98?

Yes. I can ping the box.

I'm using Verizon DSL, both computers are under LinkSys router. At home