Want to map a reverse telnet to an IP address

From: Richard Young (cc_young@pacbell.net)
Date: Thu Jan 16 2003 - 19:49:01 GMT-3

Hi,
I have a 2611 async router configured with reverse telnet to several hosts and
the reverse telnet to each host works correctly. Here is the config.
--------------------------------------------------------
interface Loopback0
 ip address 1.1.1.1 255.255.255.255
!
ip host server1 2001 1.1.1.1
ip host server2 2002 1.1.1.1
ip host server3 2003 1.1.1.1
ip host server4 2004 1.1.1.1
ip host server5 2005 1.1.1.1
ip host server6 2006 1.1.1.1
ip host server7 2007 1.1.1.1
ip host server8 2008 1.1.1.1
ip host server9 2009 1.1.1.1
!
line 1 8
 no exec
 transport input all
------------------------------------------------------------------------------------

I would like to have these devices available from somewhere else on my
intranet
by assigning a single ip address to each device.

I do not want to have to type "telnet 1.1.1.1 2001" to access the server1
for instance.
I was thinking I could create several loopbacks, one for each device for
instance:

int loop 1
     ip address 1.1.1.1 255.255.255.255
int loop 2
     ip address 1.1.1.2 255.255.255.255
int loop 3
     ip address 1.1.1.3 255.255.255.255
 as an example.

I would then advertise the 1.1.1.0 network to my intranet.
At that point from anywhere on the intranet, I could telnet 1.1.1.1 ro get to
server1
or
telnet 1.1.1.2 to get to server2 etc.

This way I could add these to my local dns and telnet server1 to access
server1 from anywhere on the intranet.

If I could add port numbers to a dns entry something like

server1 1.1.1.1 2001
server2 1.1.1.2 2002
server3 1.1.1.3 2003

This might work.

Anybody with any ideas?

Thanks in advance
Richard
.

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