cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1776
Views
5
Helpful
7
Replies

Serial over IP

c.captari
Level 1
Level 1

Hi.

Having 2 windows computers with hyperterminal (in real life i have 2 non ip devices with rs232, 19200 bps, flow control: none, stop bits 1. For the purpose of test i'll use hyperterm) and 2 cisco routers 2811. Each workstation terminates a serial cable in one 2811.

Can someone recommend a technology to make the 2 hyperterminals talk serially over IP.

I was looking for other ideas apart from SLIP . I think it's possible to encapsulate that into PPP as well, but can't find much documentation.

Basically i'm looking for documentation on a technology that would transparently encapsulate this serial conversation over IP.

1 Accepted Solution

Accepted Solutions

paolo bevilacqua
Hall of Fame
Hall of Fame

Hi, this is asynch transport and is done routinely with cisco routers. See:

http://www.cisco.com/en/US/docs/ios/12_0t/12_0t5/feature/guide/asyncudp.html

View solution in original post

7 Replies 7

Giuseppe Larosa
Hall of Fame
Hall of Fame

Hello Claudiu,

I would consider L2tPv3 and DLSW+.

for L2tpv3

http://www.cisco.com/en/US/docs/ios/12_3t/12_3t2/feature/guide/gtl2tpv3.html#wp1043078

for DLSW+

http://www.cisco.com/en/US/docs/ios/11_3/ibm/configuration/guide/bcdlsw.html#wp2144

but I have doubts they can support Rs-232: L2tp3 can transport PPP frames.

I tried to search and I've found some third party devices

http://www.connectivity.avocent.com/products/network-based/

ESP-2 MI Serial Hub

or SW based see

http://www.taltech.com/products/tcpcom.html

using a PC

I remember another thread mentioning a standard for this kind of transport.

Hope to help

Giuseppe

paolo bevilacqua
Hall of Fame
Hall of Fame

Hi, this is asynch transport and is done routinely with cisco routers. See:

http://www.cisco.com/en/US/docs/ios/12_0t/12_0t5/feature/guide/asyncudp.html

Hello Paolo,

I didn't know this feature it is the right tool for his needs

Best Regards

Giuseppe

Yes. Nothing else works for async.

Hi. Thanks for the sugestion

Indeed this seems to do the job.

With the only drawback that is unreliable being on top of UDP. I would have prefered a TCP solution.

Thanks

You can do it over tcp too. Just have a telnet autocommand to the "raw port", that is 2000 + line number. Basically one router is active, the other waits for the connection.

People used that for years before the feature I posted the link about.

drot389
Level 1
Level 1

I know the solution to work with serial port over IP network - the software http://www.eltima.com/serial-over-ip/. I use it to access serial devices connected to PC. 

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: