On Fri, Apr 18, 2008 at 12:18 AM, gopinath <gopinath at signal-networks.com> wrote: > > > how to simulate a RJ 45 port to act as serial port any option in Centos 5.1. > Please help me out on this. > Are you perhaps looking for a serial over ethernet device such as the ones made by Moxa (www.moxa.com)? I'm sure there are other makers of such devices, but this is what I've used. We buy up old versions of DE-303, Nport 5610, etc. on ebay for about $100 each. Moxa provides linux drivers that work great in CentOS. So, CentOS sees a /dev/ttyr00 port and you plug your serial device into the Moxa and you're good to go. A great solution for virtualization because you are not using a hardware serial port on your server. The only trick is getting the right pin-out between your serial device and the Moxa (which uses RJ-45 jacks), but Moxa has decent documentation. -- Jeff