Não é possível Telnet para o Linux SUSE a partir do Windows com a porta 50000

Question

O firewall foi desativado no servidor Linux SUSE, os números de porta de 50000:60020 foram ativados. Eu posso capaz de fazer o ping do servidor capaz de telnet usando o IP. Quando dou a porta 50000 ou 60000 em meus comandos telnet, diz

Connecting To 192.168.209.135...Could not open connection to the host, on port 60000: Connect failed

Poderia alguém ajudar nisso, por favor?

SUSE Linux Enterprise Server 11 (x86_64)
VERSION = 11
PATCHLEVEL = 3

C:\Users\Krishna>ping 192.168.209.135

Pinging 192.168.209.135 with 32 bytes of data:
Reply from 192.168.209.135: bytes=32 time<1ms TTL=64
Reply from 192.168.209.135: bytes=32 time<1ms TTL=64
Reply from 192.168.209.135: bytes=32 time<1ms TTL=64
Reply from 192.168.209.135: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.209.135:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

Isso funciona bem:

telnet 192.168.209.135

Saída de iptables :

summer:/etc/sysconfig # iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     tcp  --  0.0.0.0              anywhere            state NEW tcp dpts:DB2_db2champ:DB2_db2inst1_END

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Conteúdo do SuSEfirewall2 :

summer:/etc/sysconfig # cat /etc/sysconfig/SuSEfirewall2
# Copyright (c) 2000-2002 SuSE GmbH Nuernberg, Germany.  All rights reserved.
# Copyright (c) 2003,2004 SuSE Linux AG Nuernberg, Germany.  All rights reserved.
# Copyright (c) 2005-2008 SUSE LINUX Products GmbH Nuernberg, Germany.  All rights reserved.
#
# Author: Marc Heuse, 2002
#         Ludwig Nussel, 2004-2008
#
# /etc/sysconfig/SuSEfirewall2
#
# for use with /sbin/SuSEfirewall2 version 3.6
#
# ------------------------------------------------------------------------     #
# PLEASE NOTE THE FOLLOWING:
FW_PROTECT_FROM_INT="no"
FW_SERVICES_EXT_TCP="50000:60019 telnet"

summer:/etc/sysconfig # netstat -tapn | grep :50000
summer:/etc/sysconfig # netstat -tapn | grep :60000

Como posso abrir / usar a porta 50000 para conectar-me ao host do Linux SUSE usando o telnet?